US Pat. No. 9,202,620

COIL COMPONENT

TDK CORPORATION, Tokyo (...

1. A coil component comprising:
a drum core having a pair of flange portions having a mounting surface enabling to face to a mounting substrate and side surfaces
crossing the mounting surface, and a core portion configured to connect the pair of flange portions to each other;

a wire wound on the core portion of the drum core; and
a metal terminal having a mounting portion disposed at the mounting surface of first flange portion of the pair of flange
portions, a wire fixing portion configured to fix the wire and extending from the mounting portion, and a wire connecting
portion welded to an end of the wire, the wire fixing portion and the wire connecting portion being located on a same side
with respect to the first flange portion,

wherein a shortest distance from the side surface of the first flange portion to the wire fixing portion is smaller than a
shortest distance from the side surface of the first flange portion to the wire connecting portion

wherein the wire fixing portion includes a planar surface;
the wire connecting portion includes a planar surface;
the planar surface of the wire fixing portion and the planar surface of the wire connecting portion are parallel and side
by side with each other and face the side surface of the first flange portion; and

a shortest distance from the side surface of the first flange portion to the planar surface of the wire fixing portion is
smaller than a shortest distance from the side surface of the first flange portion to the planar surface of the wire connecting
portion.

US Pat. No. 9,222,994

PERPENDICULAR SPIN TORQUE OSCILLATOR FMR FREQUENCY MEASUREMENT METHOD

TDK Corporation, Tokyo (...

1. A method to characterize the frequency of a spin torque oscillator (STO), comprising:
(a) providing a STO including at least a magnetic reference layer (MRL) having a film plane, a magnetic oscillation layer
(MOL) having an in-plane magnetization component, and a non-magnetic spacer (junction) layer formed between the MRL and MOL,
said MRL has perpendicular magnetic anisotropy with a magnetization that is perpendicular to said film plane;

(b) applying a DC current that flows in a direction from the MRL through the MOL and induces an oscillation state with a certain
oscillation frequency within the MOL in-plane magnetization component;

(c) applying a magnetic field having at least an in-plane component to said STO to produce an in-plane magnetization component
within the MRL and a variable resistance across the STO; and

(d) measuring a resulting AC voltage change from essentially zero before the applied magnetic field to a value substantially
greater than zero that occurs from the variable resistance across the STO, said AC voltage change is directly related to the
MOL oscillation frequency.

US Pat. No. 9,426,934

SHIELD CASE AND ELECTRONIC APPARATUS

TDK CORPORATION, Tokyo (...

1. A shield case formed into a box-like shape and one end being opened having a top plate and a plurality of side plates,
adjacent ones of the plurality of side plates being spaced apart from one another to form a gap therebetween, a part of an
opened edge of the side plate being fixed to a substrate on which electronic parts are mounted,
wherein the side plate has a fixing portion for fixing to the substrate, and at least one pair of slits extending from the
opened edge to the top plate and having a tip portion formed in the top plate, the fixing portion being provided in a position
sandwiched between each of the at least one pair of slits in the side plate and including a first, second and third fixing
portions, the first fixing portion being provided in a center portion of the side plate, the second and third fixing portions
being formed so as to sandwich the first fixing portion therebetween in an extending direction of the side plate,

wherein a slit is formed between the second fixing portion and the gap and a slit is also formed between the third fixing
portion and the gap, and

wherein a first connecting portion is formed at an end portion of the first fixing portion on a side opposite to the top plate,
a second connecting portion is formed at an end portion of the second fixing portion on a side opposite to the top plate,
and a third connecting portion is formed at an end portion of the third fixing portion on a side opposite to the top plate,

a length of a portion of the first connecting portion that is arranged along the substrate is longer than a length of a portion
of the second connecting portion that is arranged along the substrate and a length of a portion of the third connecting portions
that is arranged along the substrate.

US Pat. No. 9,324,931

PIEZOELECTRIC DEVICE

TDK CORPORATION, Tokyo (...

1. A piezoelectric device comprising:
a first electrode film;
a piezoelectric film disposed on the first electrode film; and
a second electrode film disposed on the piezoelectric film,
wherein an oxidation-reduction potential of a metal element constituting the first and second electrode films is higher than
oxidation-reduction potentials of all metal elements constituting the piezoelectric film, and

the piezoelectric film has a composition represented by formula (1) below and contains 1% by mass or less of MnO relative
to the composition

(K1-x-y-w-vNaxLiyBawSrv)m(Nb1-z-uTazZru)O3  (1)
where x, y, z, w, v, u, and m in formula (1) satisfy 0.4 0.02?u?0.11, and 0.95?m<1.2.
US Pat. No. 9,336,933

FERRITE MAGNETIC MATERIAL

TDK Corporation, Tokyo (...

1. A ferrite sintered magnet composed of a sintered body of a ferrite magnetic material, wherein the ferrite magnetic material
comprises hard ferrite and a phosphorus (P) content, characterized in that the P content in terms of P2O5 is 0.005 to 0.1% by mass, wherein the hard ferrite comprises LaCaCo-substituted Sr magnetoplumbite-type ferrite.

US Pat. No. 9,374,936

WORKPIECE MOUNTING APPARATUS

TDK CORPORATION, Tokyo (...

1. A workpiece mounting apparatus comprising:
a workpiece transfer apparatus including
a nozzle unit including a tubular body having opposed first and second ends, a suction hole opening at the first end of the
tubular body, and an end face member sealing the second end of the tubular body, wherein at least part of the end face member
is transparent,

an imaging unit for capturing, through the end face member and the suction hole, an image of a first pattern for positioning
of a workpiece, the first pattern being located on a surface of the workpiece that is held at the suction hole, and

an image processor for identifying a reference position of the workpiece based on an image including the first pattern for
positioning that is captured by the first imaging unit;

a substrate support unit supporting a substrate which has a second pattern for positioning located on at least one side of
the substrate, wherein the imaging unit captures an image including the second pattern for positioning of the substrate supported
by the substrate support unit; and

a relative positioning unit for controlling relative position of the nozzle unit; wherein
the image processor identifies a mounting target position on the substrate, based on the image including the second pattern
for positioning that is captured by the imaging unit, and

the relative positioning unit controls the nozzle unit to mount the workpiece on the substrate, when the reference position
of the workpiece, identified by the first pattern for positioning, coincides with the mounting target position on the substrate.

US Pat. No. 9,320,146

ELECTRONIC CIRCUIT MODULE COMPONENT

TDK CORPORATION, Tokyo (...

1. An electronic circuit module component comprising:
an electronic component comprising an element body; and
a board joined to the electronic component with solder,
the element body comprising:
a first end surface and a second end face at two opposite ends, respectively, in a direction of the electronic component,
the direction being parallel with the board;

a mounting surface that opposes the board and connects the first end face and the second end face;
an top surface that is on an opposite side of the mounting surface and connects the first end face and the second end face;
and

a first lateral face and a second lateral face substantially parallel with each other and each connecting the mounting surface,
the top surface, the first end face and the second end face, and

the electronic component comprising:
a first terminal electrode having a first end part formed on the first end face, a first part formed on a portion of the first
lateral face and a portion of the second lateral face that are adjacent to the first end face, and a first mounting part formed
on a portion of the mounting surface that is adjacent to the first end face,

a second terminal electrode having a second end part formed on the second end face, a second side part formed on a portion
of the first lateral face and a portion of the second lateral face that are adjacent to the second end face, second end face,
and a second mounting part formed on a portion of the mounting surface that is adjacent to the second end face; and

an oxide film covering the entire surface of the first end part and the entire surface of the first side part, the oxide film
being obtained by oxidizing surfaces of the first and second terminal electrodes;

wherein the first mounting part and the second mounting part are joined to the board with the solder.

US Pat. No. 9,147,827

PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, PIEZOELECTRIC SENSOR, HARD DISK DRIVE, AND INKJET PRINTER DEVICE

TDK CORPORATION, Tokyo (...

1. A piezoelectric element characterized by comprising a first electrode layer, a second electrode layer, and a piezoelectric
layer sandwiched between the first electrode layer and the second electrode layer, wherein the piezoelectric layer is provided
with at least one layer each of first piezoelectric layer which is a potassium-sodium niobate thin film substantially not
containing Mn (manganese) and second piezoelectric layer which is a potassium-sodium niobate thin film containing Mn.

US Pat. No. 9,497,837

ELECTROSTATIC PROTECTION DEVICE

TDK CORPORATION, Tokyo (...

1. An electrostatic protection device, wherein, the electrostatic protection device comprises a pair of discharge electrodes
and a discharge triggered part inside an insulating laminate, and an insulating layer containing glass is disposed on at least
part of the discharge electrodes, wherein,
the discharge triggered part is disposed between the pair of discharge electrodes and at the periphery of the end portions
of the discharge electrodes, wherein,

at least the connection portion between the pair of the discharge electrodes and the discharge triggered part contain the
insulating layer, and wherein,

the insulating layer has a thickness of 0.01 ?m or more and 10 ?m or less.

US Pat. No. 9,439,288

MOUNTING STRUCTURE OF CHIP COMPONENT AND ELECTRONIC MODULE USING THE SAME

TDK Corporation, Tokyo (...

1. An electronic module comprising:
a circuit board including a main surface, a land electrode formed on the main surface and a resist pattern having an overlapped
portion that covers the land electrode;

a chip component mounted on the main surface of the circuit board, the chip component including a bottom electrode substantially
parallel to the main surface of the circuit board and a side electrode substantially perpendicular to the main surface of
the circuit board;

a solder electrically connecting the bottom and side electrodes of the chip component to the land electrode of the circuit
board, the solder including a first solder portion adhered to the side electrode and a second solder portion provided between
the bottom electrode and the land electrode; and

a mold member formed on the main surface of the circuit board so as to seal the chip component,
wherein the first solder portion is overlapped with the overlapped portion of the resist pattern in planar view,
a first gap is formed between the overlapped portion of the resist pattern and the first solder portion, and
the first gap is filled with a first portion of the mold member.

US Pat. No. 9,076,968

PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, PIEZOELECTRIC SENSOR, HARD DISK DRIVE, AND INKJET PRINTER DEVICE

TDK CORPORATION, Tokyo (...

1. A piezoelectric element which includes, as a piezoelectric layer, a thin film of potassium sodium niobate that is a perovskite
compound illustrated by a general expression ABO3,
wherein the piezoelectric layer contains Ta (tantalum) as an additive, and
wherein Ta is substituted on both of an A site and a B site.

US Pat. No. 9,362,882

APPARATUS AND METHODS FOR SEGMENTED VARIABLE CAPACITOR ARRAYS

TDK Corporation, Tokyo (...

1. An integrated circuit comprising:
a segmented variable capacitor array configured to receive a multi-bit digital control signal, wherein the segmented variable
capacitor array comprises:

a radio frequency (RF) input and an RF output;
a plurality of most significant bit (MSB) variable capacitor cells electrically connected in parallel between the RF input
and the RF output, wherein the plurality of MSB variable capacitor cells comprises a plurality of pairs of metal oxide semiconductor
(MOS) capacitors, wherein the plurality of pairs of MOS capacitors comprises at least one pair of MOS capacitors electrically
connected between the RF input and the RF output in a signal path that omits any switches;

a plurality of least significant bit (LSB) variable capacitor cells electrically connected in parallel between the RF input
and the RF output, wherein each of the plurality of MSB variable capacitor cells has a nominal capacitance that is greater
than a nominal capacitance of each of the plurality of LSB variable capacitor cells;

an MSB decoder configured to receive a first portion of bits of the multi-bit digital control signal and to generate a plurality
of MSB control signals, wherein the plurality of MSB control signals are configured to control a capacitance of the plurality
of MSB variable capacitor cells; and

an LSB decoder configured to receive a second portion of bits of the multi-bit digital control signal and to generate a plurality
of LSB control signals, wherein the plurality of LSB control signals are configured to control a capacitance of the plurality
of LSB variable capacitor cells.

US Pat. No. 9,348,004

MAGNETIC SENSOR, MAGNETIC HEAD, AND BIOMAGNETIC SENSOR

TDK CORPORATION, Tokyo (...

1. A magnetic sensor characterized by comprising:
a channel layer;
a magnetization free layer placed on a first section of the channel layer; and
a magnetization-fixed layer placed on a second section of the channel layer,
wherein a thickness of the channel layer of the first section is different from a thickness of the channel layer of the second
section and a resistance of an interface between the channel layer and the magnetization free layer is lower than a resistance
of an interface between the channel layer and the magnetization-fixed layer.

US Pat. No. 9,362,031

SEMICONDUCTOR CERAMIC COMPOSITION AND PTC THERMISTOR

TDK CORPORATION, Tokyo (...

1. A semiconductor ceramic composition comprising a sintered body which contains a BaTiO3 based compound represented by the following formula (1) as a main component,
(Ba1-x-y-wBixAyREw)m(Ti1-zTMz)O3  (1)

wherein, in the formula (1), A is at least one element selected from Na or K, RE is at least one element selected from the
group consisting of Y, La, Ce, Pr, Nd, Sm, Gd, Dy and Er, TM is at least one element selected from the group consisting of
V, Nb and Ta,

w, x, y, z (all the units of which are mol) and m (which is the mole ratio of Ba sites/Ti sites) satisfy the following relationships
of (2)˜(5),

0.007?x?0.125  (2)

x
0?(w+z)?0.01  (4)

0.94?m?0.999  (5)

wherein, said semiconductor ceramic composition further comprises Ca in a proportion of 0.01 mol or more and 0.055 mol or
less in terms of element relative to 1 mol of Ti sites.

US Pat. No. 9,330,838

COIL UNIT

TDK CORPORATION, Tokyo (...

1. A coil unit for wirelessly transmitting or receiving power, comprising:
a winding wire; and
a magnetic body,
wherein in the magnetic body, a plurality of individual pieces with two principal surfaces opposing to each other in a thickness
direction are disposed in rows and columns in a direction substantially orthogonal to the thickness direction, and the two
principal surfaces are in a polygonal shape, and the polygonal shape has all obtuse angles and no right angle,

wherein the plurality of individual pieces are disposed in layers in the thickness direction, and
wherein central parts of the plurality of individual pieces do not overlap each other when viewed from the thickness direction.

US Pat. No. 9,445,525

POWER SUPPLY DEVICE

TDK CORPORATION, Tokyo (...

1. A power supply device comprising:
a housing having a first bottom surface, a first side wall extending upwards from a peripheral edge of the first bottom surface,
a second bottom surface provided on the first side wall above the first bottom surface, a second side wall extending upwards
from a peripheral edge of the second bottom surface, and a coolant channel provided below the second bottom surface so that
coolant flows through the coolant channel;

a main substrate contained in an interior of the housing, wherein electronic components are provided on a first main surface
and a part of a second main surface, which is opposite the first main surface, is arranged on the second bottom surface of
the housing while facing the second bottom surface; and

a coil component contained in the interior of the housing and electrically connected to the main substrate, wherein
the interior of the housing is delimited into a first space surrounded by the first bottom surface and the first side wall,
and a second space provided above the first space and surrounded by the second bottom surface and the second side wall,

the coil component is arranged in the first space,
the electronic components provided on the first main surface of the main substrate are arranged in the second spacer, and
the coolant channel is provided along the first side wall above the first bottom surface.

US Pat. No. 9,055,373

PIEZOELECTRIC SOUNDER

TDK CORPORATION, Tokyo (...

1. A piezoelectric sounder for transmitting a signal by using a sound, the piezoelectric sounder comprising:
a piezoelectric diaphragm constructed by attaching a piezoelectric element to a metal sheet;
a case containing the piezoelectric diaphragm and having a resonance space defined therewithin and adapted to resonate as
the piezoelectric diaphragm vibrates; and

a pair of terminals electrically connected to the metal sheet and piezoelectric element of the piezoelectric diaphragm;
wherein the piezoelectric sounder has a plurality of resonance points including both a resonance point higher than a frequency
range of the signal and a resonance point lower than the frequency range of the signal, and does not have any resonance points
in the frequency range of the signal, the frequency range of the signal being 16 to 20 kHz.

US Pat. No. 9,350,203

RARE EARTH SINTERED MAGNET, METHOD FOR PRODUCING THE SAME, MOTOR, AND AUTOMOBILE

TDK Corporation, Tokyo (...

1. A rare earth sintered magnet comprising a group of main phase grains each composed of an R-T-B-based rare earth magnet
comprising a core and a shell covering the core,
wherein a thickness of the shell is 500 nm or less,
R includes a light rare earth element and a heavy rare earth element, and
a Zr compound is present in the shell.

US Pat. No. 9,130,169

PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, PIEZOELECTRIC SENSOR, HARD DISK DRIVE, AND INKJET PRINTER DEVICE

TDK CORPORATION, Tokyo (...

1. A piezoelectric element which includes, as a piezoelectric layer, a thin film of potassium sodium niobate that is a perovskite
compound represented by a general expression ABO3,
wherein the piezoelectric layer contains Sr (strontium) and Mn (manganese) as additives,
wherein Sr is substituted on both of an A site and a B site and
wherein Mn is substituted only on the A site.

US Pat. No. 9,099,968

BIAS CONTROL CIRCUIT

TDK CORPORATION, Tokyo (...

7. A bias control circuit for controlling bias of an amplifier for amplifying a high-frequency signal, provided with:
a detector for detecting an envelope of the high-frequency signal,
a first bias circuit for supplying a constant bias current to the amplifier, and
a second bias circuit for supplying a bias current that varies with variation of a level of the envelope to the amplifier,
wherein,

the first bias circuit is a current mirror circuit for supplying the bias current, which is irrelevant to the level of the
envelope and is obtained by multiplying a reference current having a constant current value by a first mirror ratio, and

the second bias circuit is a current mirror circuit for supplying the bias current which is obtained by multiplying a reference
current value by a second mirror ratio when the level of the envelope goes beyond a threshold value, wherein said reference
current varies with the variation of the level of the envelope.

US Pat. No. 9,231,182

ANGULAR VELOCITY SENSOR

TDK CORPORATION, Tokyo (...

1. An angular velocity sensor including a drive arm to which a piezoelectric element is fixed,
the piezoelectric element comprising:
a piezoelectric film;
a first electrode film provided on one surface side of the piezoelectric film; and
a second electrode film provided on the other surface side of the piezoelectric film, wherein
a dimension La of the first electrode film in a width direction, a dimension Lc of the second electrode film in the width
direction, and a dimension Lb of the piezoelectric film in the width direction satisfy following relationship:

Lc×0.95?La?Lc×1.05,

Lb Lb film is the width direction.

US Pat. No. 9,481,606

DIELECTRIC COMPOSITION, DIELECTRIC FILM, AND ELECTRONIC COMPONENT

TDK CORPORATION, Tokyo (...

1. A capacitor comprising:
a first electrode;
a second electrode; and
a dielectric film disposed between the first electrode and the second electrode, wherein the dielectric film is composed of
a dielectric composition comprising a crystalline phase represented by a general formula of Bi12SiO20 and a crystalline phase represented by a general formula of Bi2SiO5 as the main components.

US Pat. No. 9,474,150

TRANSMISSION LINE FILTER WITH TUNABLE CAPACITOR

TDK Corporation, Tokyo (...

1. A tunable filter apparatus comprising:
at least one fixed capacitive element including a first transmission line section disposed adjacent a first dielectric material
section having a dielectric constant;

at least one fixed inductive element including a second transmission line section disposed adjacent a second dielectric material
section having a dielectric constant; and

at least one interdigitated capacitive element including at least a first main body and two or more fingers extending from
the first main body, the two or more fingers configured as an array having at least two rows and at least two columns.

US Pat. No. 9,324,483

CHIP THERMISTOR AND METHOD OF MANUFACTURING SAME

TDK CORPORATION, Tokyo (...

1. A chip thermistor comprising:
a thermistor portion comprised of a ceramic material containing a metal oxide including at least one of Mn, Ni, or Co;
a pair of composite portions comprised of a composite material including a metal and a metal oxide, the pair of composite
portions being arranged on both sides of the thermistor portion so as to sandwich in the thermistor portion between the composite
portions.

US Pat. No. 9,202,613

FERRITE MAGNETIC MATERIAL, FERRITE MAGNET, AND FERRITE SINTERED MAGNET

TDK CORPORATION, Tokyo (...

1. A ferrite magnetic material, in which its main phase comprises:
a ferrite phase having a hexagonal crystal structure, and
metal element composition constituting the ferrite magnetic material is expressed by the following formula (1),
Ca1-w-x-yRwSrxBayFezMm  (1)

wherein:
R in formula (1) is at least one element selected from the group consisting of rare-earth element, including Y, and Bi, which
at least includes La,

M in formula (1) is at least one element selected from the group consisting of Co, Mn, Mg, Ni, Cu, and Zn, which at least
includes Co,

w, x, y, z, and m in formula (1) respectively satisfies the following formulas (2), (3), (4), (5), (6), (7) and (8)
0.25 0.01 0.0001 y 8.7 1.0 0.017 an Si component is at least included as a sub-component, and wherein:
when content y1 mass % of the Si component in the ferrite magnetic material, with respect to SiO2, is shown on Y-axis and a total content x1 of z and m is shown on X-axis, a relation between x1 and y1 is within a range
surrounded by 4 points a(8.9, 1.2), b(8.3, 0.95), c(10.0, 0.35) and d(10.6, 0.6), placed on X-Y coordinate having the X and
Y axes.

US Pat. No. 9,147,826

THIN FILM PIEZOELECTRIC ELEMENT, THIN FILM PIEZOELECTRIC ACTUATOR, AND THIN FILM PIEZOELECTRIC SENSOR; AND HARD DISK DRIVE, AND INKJET PRINTER

TDK CORPORATION, Tokyo (...

1. A thin-film piezoelectric element, comprising a pair of electrode layers and a piezoelectric thin film sandwiched between
the pair of electrode layers, wherein a surface roughness P-V of an interface between the piezoelectric thin film and at least
one of the pair of electrode layers is 220 nm or more and 500 nm or less, wherein the surface roughness P-V is defined by
a difference between a maximum height (peak value P) and a minimum height (valley value V).

US Pat. No. 9,144,166

ELECTRONIC COMPONENT

TDK CORPORATION, Tokyo (...

1. An electronic component comprising an element body having a mounting surface and a plurality of side faces, the electronic
component further comprising:
a first terminal electrode formed on the mounting surface and one of the plurality of side faces;
a second terminal electrode formed on the mounting surface and another side face in the plurality of side faces;
a metal film formed on and in direct contact with a surface of a mounting part of each of the first and second terminal electrodes
formed on the mounting surface; and

an oxide film covering and in direct contact with at least a part of a surface of a side face part of each of the first and
second terminal electrodes formed on the side faces.

US Pat. No. 9,190,084

THERMAL ASSISTED MAGNETIC RECORDING HEAD WITH PROTRUSION ON LEADING SIDE OF PLASMON GENERATOR

TDK Corporation, Tokyo (...

1. A thermal assisted magnetic recording head, comprising:
an air bearing surface (ABS) opposite to a magnetic recording medium,
a core that can propagate laser light as propagating light,
a plasmon generator that includes a generator front end surface facing the ABS, and
a main pole that faces the ABS and emits magnetic flux to the magnetic recording medium, wherein
the plasmon generator
is opposite to a portion of the core and extends to the generator front end surface,
is coupled with a portion of the propagating light that propagates through the core in the surface plasmon mode to generates
surface plasmon,

propagates the surface plasmon to the generator front end surface, and
generates near-field light (NF light) at the generator front end surface to irradiate the magnetic recording medium, and
the ABS comprises a protrusion that is closer to the leading side than the generator front end surface in the down track direction,
and that protrudes more toward the magnetic recording medium than the generator front end surface when the thermal assisted
magnetic recording head is operated.

US Pat. No. 9,177,705

SINTERED RARE EARTH MAGNET, METHOD OF PRODUCING THE SAME, AND ROTATING MACHINE

TDK CORPORATION, Tokyo (...

1. A sintered rare earth magnet, comprising:
a main phase composed of R2T14B, where:

R comprises as a main component one or more rare earth element selected from:
Nd,
Pr, and
Nd and Pr, and
T represents one or more transition metal element selected from:
Fe, and
Fe and Co; and
a grain boundary phase containing a higher proportion of R than the main phase;
wherein:
the main phase includes one or more heavy rare earth element selected from:
Dy,
Tb, and
Dy and Tb;
at least a part of main phase grains of the main phase includes at least three regions where the concentration of the heavy
rare earth elements differs, the three regions being:

a low concentration region where the concentration of the heavy rare earth elements is the lowest in three regions,
a high concentration region where the concentration of the heavy rare earth elements is the highest in three regions, and
an intermediate concentration region where the concentration of the heavy rare earth elements is higher than the low concentration
region and is lower than the high concentration region,

the three regions exist in order of the low concentration region, the high concentration region, and the intermediate concentration
region, from the low concentration region in the main phase grain toward the grain boundary phase;

an area ratio of the high concentration region with respect to the main phase is from 1 to 35%;
main phase grains wherein the high concentration region contacts an overall periphery of the low concentration region and
the intermediate concentration region contacts an overall periphery of the high concentration region exist at 5% or more in
the sintered rare earth magnet,

an average concentration value of the heavy rare earth element in the intermediate concentration region is determined as the
average concentration value of the heavy rare earth element from the maximum concentration of the heavy rare earth element
to the grain boundary phase, and

a value of the following formula (A) is in a range of 0.2 to 0.8:
(???)/(???)  (A)
where:
?=the minimum concentration of the heavy rare earth element in the main phase,
?=the maximum concentration of the heavy rare earth element in the main phase, and
?=the average concentration value of the heavy rare earth element in the intermediate concentration region.
US Pat. No. 9,082,537

R-T-B BASED PERMANENT MAGNET

TDK CORPORATION, Tokyo (...

1. A R-T-B based permanent magnet, comprising
a R-T-B based structure in which a R1-T-B based crystal layer and a Y-T-B based crystal layer are stacked,
wherein R1 represents at least one rare earth element except Y, and T represents at least one transition metal element comprising
Fe or a combination of Fe and Co.

US Pat. No. 9,356,449

WIRELESS POWER RECEIVER, WIRELESS POWER TRANSMISSION SYSTEM, AND POWER CONTROLLER

TDK CORPORATION, Tokyo (...

1. A wireless power receiver that receives, at a receiving coil, AC power wirelessly fed from a feeding coil using a magnetic
field resonance phenomenon between the feeding coil and the receiving coil, the wireless power receiver comprising:
the receiving coil;
a loading circuit including a load that receives the AC power supplied from the receiving coil; and
a power controller that controls the receiving power of the load, the power controller including:
a measurement unit that measures the receiving power; and
an adjustment unit that brings the receiving power close to its maximum value by changing a real number part of impedance
of the loading circuit without substantially changing an imaginary part of the impedance of the loading circuit, wherein:

the loading circuit includes first and second LC circuits,
the adjustment unit performs first-stage adjustment for making reactance components of the first and second LC circuits to
cancel each other and second-stage adjustment for adjusting the impedance of the loading circuit so as to maximize the receiving
power,

in the first-stage adjustment, the adjustment unit adjusts a first variable capacitor included in the second LC circuit such
that the reactance components of the first and second LC circuits cancel each other, and

in the second-stage adjustment, the adjustment unit adjusts a second variable capacitor included in the second LC circuit
and a third variable capacitor included in the first LC circuit.

US Pat. No. 9,437,807

PIEZOELECTRIC COMPOSITION AND PIEZOELECTRIC ELEMENT

TDK CORPORATION, Tokyo (...

1. A piezoelectric composition comprising a main component which contains a substance represented by the following formula
with a perovskite structure,
(Bi(0.5x+y+z)Na0.5x)m(Tix+0.5yMg0.5yAlkzCo(1?k)z)O3
wherein, 0.15?x?0.7, 0.28?y?0.75, 0.02?z?0.30, 0.17?k?0.83, 0.75?m?1.0, and x+y+z=1.
US Pat. No. 9,070,500

R-T-B BASED PERMANENT MAGNET

TDK CORPORATION, Tokyo (...

1. A R-T-B based permanent magnet, comprising:
a R-T-B based structure in which a R1-T-B based crystallizing layer and a (Y, La)-T-B based crystallizing layer are stacked,
wherein R1 is at least one rare earth element except Y and La, and T is one or more transition metal element comprising Fe
or the combination of Fe and Co.

US Pat. No. 9,585,250

CONDUCTIVE PASTE AND CERAMIC SUBSTRATE MANUFACTURED USING THE SAME

TDK Corporation, Tokyo (...

1. A conductive paste to be printed on a low-temperature fired ceramic green sheet layered product for forming a surface conductor
by constrained firing, the conductive paste comprising 60 to 95 mass % of an Ag powder as the content in a paste composition,
0.5 to 5 mass % of a borosilicate based glass powder relative to the Ag powder, the remainder being a platinum group metal
additive and an organic vehicle,
wherein the platinum group metal additive contains at least two metals of Ru and Rh, and the content of Ru and the content
of Rh in the platinum group metal additive are 0.05 to 5 mass % of Ru and 0.001 to 0.1 mass % of Rh respectively in terms
of metal components relative to the mass of the Ag powder.

US Pat. No. 9,154,004

RARE EARTH SINTERED MAGNET AND MOTOR

TDK CORPORATION, Tokyo (...

1. A rare earth sintered magnet comprising a rare earth sintered magnet body including crystal grains of (R1, R2)2T14B;
wherein:
R1 represents at least one rare earth element except for Dy and Tb,
R2 represents a rare earth element at least including one or both of Dy and Tb,
T represents one or more transition metal elements including Fe or including Fe and Co,
a ratio of R2 to a sum of R1 and R2 that is contained in crystal grain boundaries surrounding the crystal grains in the rare
earth sintered magnet body is higher than a ratio of R2 to a sum of R1 and R2 in the crystal grains,

a concentration of R2 increases from a central portion of the rare earth sintered magnet body toward a surface of the rare
earth sintered magnet body; and

a degree of unevenness in residual magnetic flux density among a plurality of areas on the surface of the rare earth sintered
magnet body is smaller than 3.0%.

US Pat. No. 9,386,697

WIRING BOARD, ELECTRONIC COMPONENT EMBEDDED SUBSTRATE, METHOD OF MANUFACTURING WIRING BOARD, AND METHOD OF MANUFACTURING ELECTRONIC COMPONENT EMBEDDED SUBSTRATE

TDK CORPORATION, Tokyo (...

1. An electronic component embedded substrate comprising:
a resin layer that has a resin containing a plurality of first fillers;
an electronic component disposed under at least a portion of the resin layer; and
a via that is provided to the resin layer,
wherein the via includes a mix area which includes the resin and mental provided between a plurality of second fillers, and
at least some of the second fillers are not connected to other ones of the second fillers through the resin on the inner radial
side with respect to the substrate and the via is electrically connected to the electronic component.

US Pat. No. 9,171,668

MAGNET MEMBER

TDK CORPORATION, Tokyo (...

1. A magnet member comprising:
a magnet base body including a rare-earth magnet; and
a plating film containing Ni that covers the magnet base body and forms an outermost layer of the magnet member, the plating
film containing Ni comprising (i) a center part that coincides with a center of the magnet base body, and (ii) a marginal
part;

wherein the plating film containing Ni has a sulfur content lower in the marginal part of the outermost layer of the magnet
member than in the center part of the outermost layer of the magnet member,

wherein a surface of the plating film containing Ni that forms the outermost layer of the magnet member is perpendicular to
an easy magnetization direction of the magnet base body, and

wherein the center part of the plating film containing Ni is surrounded by the marginal part of the plating film containing
Ni, the center part having a 50% reduction ratio relative to the marginal part, wherein the plating film containing Ni is
thicker in the marginal part than in the center part.

US Pat. No. 9,054,428

ANTENNA AND WIRELESS COMMUNICATION UNIT

TDK CORPORATION, Tokyo (...

1. An antenna, comprising:
a first resonator extending in a length direction between two ends thereof, the two ends of the first resonator being a first
end and a second end, the first end being an open end;

a second resonator extending in a length direction between two ends thereof, the two ends of the second resonator being a
third end and a fourth end, the third end being an open end, the first resonator and the second resonator being disposed substantially
parallel with each other, such that the length directions of the first and second resonator are substantially parallel with
each other, the first end and the third end being at a same side in the substantially parallel length directions and facing
each other, the second end and the fourth end being at a same side in the substantially parallel length directions and facing
each other; and

a first capacitor connected between the first end and the third end.

US Pat. No. 9,380,687

ESD PROTECTION DEVICE

TDK CORPORATION, Tokyo (...

1. An ESD protection device, comprising
an insulating substrate, electrodes separately and oppositely disposed on the insulating substrate and a discharge inducing
section arranged between the electrodes,

wherein said discharge inducing section consists of porous material in which microscopic voids are discontinuously dispersed,
has a hollow structure which contains at least one hollow space, and a plane that is exposed to and surrounds the hollow space,
the plane having a density that is greater than a density of other portions of the discharge inducing section that are separated
from the hollow space by the plane.

US Pat. No. 9,355,778

HIGH VOLTAGE CAPACITOR

TDK CORPORATION, Tokyo (...

1. A high voltage capacitor comprising:
a columnar capacitor element body, made of a dielectric material, having a pair of principal surfaces opposing each other;
a pair of electrodes arranged on the respective principal surfaces in the capacitor element body;
a pair of terminal metal fittings connected to the respective electrodes;
a case containing a resin material and having a bottom part formed with an opening for exposing one of the terminal metal
fittings and a trunk part extending from an edge of the bottom part in a direction intersecting the bottom part, the bottom
part and the trunk part defining a space for containing the capacitor element body; and

a resin part made of an insulating material and arranged within the case so as to seal the capacitor element body contained
in the space;

wherein the case has a degree of hardness lower than that of the resin part,
wherein the one terminal metal fitting is exposed by being inserted into the opening formed in the bottom part,
wherein at least the one terminal metal fitting has an outer peripheral surface provided with a projection extending along
a circumferential direction of the outer peripheral surface,

wherein an edge portion defining the opening in the bottom part is in close contact with the outer peripheral surface of the
one terminal metal fitting inserted in the opening, and

wherein the edge portion is provided with a positioning part for abutting against the projection of the one terminal metal
fitting and defining a position of the one terminal metal fitting.

US Pat. No. 9,349,522

COIL COMPONENT

TDK CORPORATION, Tokyo (...

1. A coil component comprising:
a substrate;
first and second spiral conductors that are formed on one and the other of main surfaces of the substrate, respectively;
a first terminal electrode that is formed on the one main surface and connected to an outer peripheral end of the first spiral
conductor;

a second terminal electrode that is formed on the other main surface and connected to an outer peripheral end of the second
spiral conductor;

a first through-hole conductor that penetrates the substrate to connect inner peripheral ends of the first and second spiral
conductors each other;

a first dummy terminal electrode that is formed on the one main surface and vertically overlapped with the second terminal
electrode;

a second dummy terminal electrode that is formed on the other main surface and vertically overlapped with the first terminal
electrode;

a second through-hole conductor that penetrates the substrate to connect the first dummy terminal electrode with the second
terminal electrode;

a first metal magnetic powder-containing resin layer that is formed on the one main surface and covers the first spiral conductor,
the first terminal electrode, and the first dummy terminal electrode;

a second metal magnetic powder-containing resin layer that is formed on the other main surface and covers the second spiral
conductor, the second terminal electrode, and the second dummy terminal electrode;

a first lead electrode that penetrates the first metal magnetic powder-containing resin layer and is connected to a top surface
of the first terminal electrode; and

a second lead electrode that penetrates the first metal magnetic powder-containing resin layer and is connected to a top surface
of the first dummy terminal electrode, wherein

outer side surfaces of the first and second terminal electrodes, the first and second dummy terminal electrodes, and the first
and second lead electrodes are each exposed without being covered with the first and second metal magnetic powder-containing
resin layers, and

side surfaces of the substrate lying on the same planes as the outer side surfaces of the first and second terminal electrodes
are exposed without being covered with the first and second metal magnetic powder-containing resin layers.

US Pat. No. 9,396,852

R-T-B BASED PERMANENT MAGNET

TDK CORPORATION, Tokyo (...

1. A R-T-B based permanent magnet, comprising
a R-T-B based structure in which a R1-T-B based crystal layer and a Ce-T-B based crystal layer are stacked,
wherein:
R1 represents at least one rare earth element selected from the group consisting of Nd, Pr, Dy, Tb, and Ho;
T represents at least one transition metal element comprising Fe or a combination of Fe and Co;
an atomic ratio of R1 to Ce is 0.1 or more and 10 or less; and
each of the R1-T-B based crystal layer and the Ce-T-B based crystal layer has a thickness of 0.6 nm or more and 300 nm or
less.

US Pat. No. 9,389,286

MAGNETIC SENSOR WITH REDUCED EFFECT OF INTERLAYER COUPLING MAGNETIC FIELD

TDK CORPORATION, Tokyo (...

1. A magnetic sensor configured to detect a component in a first direction of an external magnetic field, comprising a magnetoresistive
element and a bias field generation unit, wherein
the magnetoresistive element includes a magnetization pinned layer having a magnetization pinned in a direction parallel to
the first direction, a free layer having a magnetization that varies depending on the component in the first direction of
the external magnetic field, and a nonmagnetic layer interposed between the magnetization pinned layer and the free layer,

the magnetization pinned layer, the nonmagnetic layer and the free layer are stacked to be adjacent in a second direction
orthogonal to the first direction,

the free layer receives an interlayer coupling magnetic field in the direction parallel to the first direction resulting from
the magnetization pinned layer,

the bias field generation unit applies a bias magnetic field to the free layer, and
the bias magnetic field includes a first magnetic field component in a direction opposite to the direction of the interlayer
coupling magnetic field and a second magnetic field component in a third direction orthogonal to the first and second directions.

US Pat. No. 9,381,595

PB-FREE SOLDER AND ELECTRONIC COMPONENT BUILT-IN MODULE

TDK CORPORATION, Tokyo (...

1. A Pb-free solder comprising:
a first metal including at least Sn and Bi; and
a second metal including at least an Ni—Fe alloy,
wherein, in the first metal, a sum of Sn and Bi is 90 mass % or more, and a ratio of Bi is 5 to 15 mass %, and
a ratio of the second metal to a sum of mass of the first metal and mass of the second metal is 5 to 30 mass %.

US Pat. No. 9,304,177

MOVABLE COIL SCANNER SYSTEMS AND METHODS

TDK Corporation, Tokyo (...

25. A method, comprising:
positioning a vehicle on a stationary platform within a scanner, the scanner comprising:
a first coil configured to generate a first magnetic field, wherein the first coil is disposed on a first side of a scanning
volume and wherein the first coil comprises a first feed for supplying electric current to the first coil,

a second coil configured to generate a second magnetic field, wherein the second coil is disposed opposite the first coil
on a second side of the scanning volume opposite the first side, wherein the second coil comprises a second feed for supplying
electric current to the second coil, and wherein the first magnetic field and second magnetic field combine to form a combined
magnetic field,

a first transporter configured to translate the first coil in at least one dimension, and
a second transporter configured to translate the second coil in at least one dimension; and
scanning a scanning volume including the vehicle, wherein the scanning comprises controlling the first transporter, the second
transporter, the first feed, and the second feed to provide the combined magnetic field as a controlled and calibrated magnetic
field over the scanning volume.

US Pat. No. 9,390,851

COIL

TDK CORPORATION, Tokyo (...

1. A coil with a stacked structure, comprising:
a bobbin which comprises a plate portion for separating a wire-accommodating portion in each layer, and
a winding wire portion which comprises a wire wound multiple times in a plane and is accommodated in the wire-accommodating
portion in each layer,

wherein the winding wire portion includes a first winding portion formed by performing a single turn of winding in each layer
in a same winding direction from a bottom layer to an uppermost layer of the wire-accommodating portions, and a second winding
portion formed by performing a single turn of winding in each layer in a same winding direction from the uppermost layer to
the bottom layer of the wire-accommodating portions, and

the winding directions of the first winding portion and the second winding portion are identical to each other, and the first
winding portion and the second winding portion are joined in the uppermost layer or the bottom layer of the wire-accommodating
portions.

US Pat. No. 9,361,912

HIGH MOMENT SIDE SHIELD DESIGN FOR AREA DENSITY IMPROVEMENT OF PERPENDICULAR MAGNETIC RECORDING (PMR) WRITER

Headway Technologies, Inc...

1. A perpendicular magnetic recording (PMR) writer, comprising:
(a) a main pole with a leading side and a trailing side, the leading side adjoins a lead gap at an air bearing surface (ABS)
and the trailing side adjoins a write gap at the ABS;

(b) a side gap which contacts a side of the main pole formed between the trailing side and leading side on each side of a
center plane that bisects the main pole in a direction orthogonal to the ABS;

(c) a lead gap that is connected to an end of each side gap and contacts the leading side of the main pole; and
(d) a side shield and leading shield structure comprising:
(1) a hot seed layer made of a 19-24 kilogauss (kG) magnetic material having a side that faces the main pole wherein a first
portion thereof adjoins the lead gap and a second portion contacts the side gap on each side of the center plane; and

(2) a first magnetic layer made of a 10-16 kG magnetic material that adjoins the first portion on a side thereof which faces
away from the main pole and together with the hot seed layer first portion forms a composite leading shield; and

(3) a second magnetic layer made of a 10-16 kG magnetic material that adjoins each second portion on a side thereof that faces
away from the main pole and with the hot seed layer second portion forms a composite side shield.

US Pat. No. 9,293,165

THERMALLY ASSISTED MAGNETIC RECORDING HEAD WITH MAGNETIC CIRCUIT PARALLEL TO SUBSTRATE

TDK Corporation, Tokyo (...

12. A thermally assisted magnetic recording head, comprising:
an NF light generator that includes a generator end surface facing an air bearing surface (ABS), and that generates NF light
on the generator end surface and irradiates a magnetic recording medium with the NF light; and

a magnetic circuit that circulates roughly parallel to a substrate with an open shape having two end surfaces that are close
to each other in the cross track direction, and that face the ABS, and where one end surface configures a main magnetic pole
end surface that is positioned at the ABS and that emits a magnetic flux to the magnetic recording medium, and where the other
end surface configures a shield end surface that absorbs the magnetic flux returning from the magnetic recording medium, respectively,
wherein

a center line of the generator end surface extending in the down track direction extends between opposing sides of the main
magnetic pole end surface and the shield end surface.

US Pat. No. 9,244,136

MAGNETIC SENSOR WITH REDUCED EFFECT OF INTERLAYER COUPLING MAGNETIC FIELD

TDK CORPORATION, Tokyo (...

1. A magnetic sensor configured to detect a component of an external magnetic field in a first direction, comprising a magnetoresistive
element and a bias field generation unit, wherein
the magnetoresistive element includes a magnetization pinned layer having a magnetization pinned in a direction parallel to
the first direction, a free layer having a magnetization that varies depending on the component in the first direction of
the external magnetic field, and a nonmagnetic layer interposed between the magnetization pinned layer and the free layer,

the magnetization pinned layer, the nonmagnetic layer and the free layer are stacked to be adjacent in a second direction
orthogonal to the first direction,

the free layer receives an interlayer coupling magnetic field in the direction parallel to the first direction resulting from
the magnetization pinned layer,

the bias field generation unit includes at least one magnet and applies a bias magnetic field to the free layer,
the magnetoresistive element and the at least one magnet are aligned in a third direction orthogonal to the first and second
directions,

the at least one magnet has an end face facing the magnetoresistive element,
the at least one magnet has a magnetization in a direction inclined with respect to a direction perpendicular to the end face,
the magnetization of the at least one magnet includes a first magnetization component parallel to the first direction and
a second magnetization component parallel to the third direction,

the bias magnetic field includes a first magnetic field component in a direction opposite to the direction of the interlayer
coupling magnetic field and a second magnetic field component parallel to the third direction,

the direction of the first magnetic field component is opposite to that of the first magnetization component, and
the second magnetic field component is in the same direction as the second magnetization component.

US Pat. No. 9,225,287

OSCILLATOR, RECTIFIER, AND TRANSCEIVER DEVICE

TDK CORPORATION, Tokyo (...

1. An oscillator, comprising:
an oscillation portion that generates oscillatory electric signals due to magnetization motion; and
a first electric circuit that is connected in parallel to the oscillation portion, wherein:
a current whose magnitude oscillates flows to the first electric circuit, and
the first electric circuit is arranged such that a magnetic field generated by the current is applied to the oscillation portion.

US Pat. No. 9,305,690

COMPOSITE FERRITE COMPOSITION AND ELECTRONIC DEVICE

TDK CORPORATION, Tokyo (...

1. A composite ferrite composition, comprising:
a magnetic material and a non-magnetic material;
wherein:
a mixing ratio of said magnetic material and said non-magnetic material is 20 wt %:80 wt % to 80 wt %:20 wt %,
said magnetic material is Ni—Cu—Zn based ferrite,
at least oxides of Zn, Cu, and Si are included in a main component of said non-magnetic material,
borosilicate glass is included in a subcomponent of said non-magnetic material,
the main component of said non-magnetic material is expressed by a general formula “a(bZnO.cMgO.dCuO).SiO2”, and

a, b, c and d in the general formula satisfies the following:
a=1.5 to 2.4,
b=0.2 to 0.98,
c=1.00?b?d, and
d=0.02 to 0.15.

US Pat. No. 9,395,510

LENS HOLDING DEVICE FOR CAMERA MODULE

TDK CORPORATION, Tokyo (...

1. A lens holding device for camera module, comprising:
a movable part which has a lens holder holding a lens and has a coil attached to the lens holder,
a support part which has a magnet part arranged around an outer peripheral side of the movable part so as to face to the coil
and supports the movable part so as to move relatively, and

a spring connecting the movable part and the supporting part resiliently, wherein
the magnet part includes a resin and is an anisotropy magnet whose easy-magnetization axes are aligned,
the magnet part has an alignment part of a convex or a concave shape which is formed on the anisotropy magnet itself and positions
the spring by engaging therewith,

the magnet part is integrally continuous in a circumferential direction of the movable part, and
the magnet part has a frame shape whose thickness of a corner is relatively large as seen from an optical axis direction of
the lens.

US Pat. No. 9,245,676

SOFT MAGNETIC ALLOY POWDER, COMPACT, POWDER MAGNETIC CORE, AND MAGNETIC ELEMENT

TDK CORPORATION, Tokyo (...

1. A soft magnetic alloy powder comprising Fe—Ni-based alloy particles containing 38% to 48% by mass Ni, 1.0% to 15% by mass
Co, and 1.2% to 10% by mass Si relative to the total mass of Fe, Ni, Co, and Si, the remainder being Fe, wherein the Fe—Ni-based
particles have an average size of more than 1 ?m to less than 10 ?m, and
wherein the Fe—Ni-based alloy particles have a core loss of 1526 kW/m3 or less at 10 MHz.

US Pat. No. 9,225,057

ANTENNA APPARATUS AND WIRELESS COMMUNICATION DEVICE USING SAME

TDK CORPORATION, Tokyo (...

1. An antenna device comprising:
an antenna element; and
a printed circuit board on which the antenna element is mounted, wherein
the antenna element includes:
a base which is made of a dielectric material; and
a radiation conductor formed on at least one surface of the base,
the printed circuit board includes:
a ground clearance region having substantially a rectangular shape and having one side contacting an edge of the printed circuit
board and other three sides surrounded by an edge line of a ground pattern;

an antenna mounting region provided within the ground clearance region; and
at least one frequency adjusting element provided within the ground clearance region, and
the frequency adjusting element includes a chip capacitor or a chip inductor provided on the far side of the antenna mounting
region as viewed from the edge of the printed circuit board,

the antenna device further includes first and second electrode patterns sandwiched between a bottom surface of the base and
the printed circuit board,

the first electrode pattern is connected to the ground pattern, and
the second electrode pattern is connected to a power feeding line.

US Pat. No. 9,214,283

MULTILAYER CAPACITOR AND METHOD OF MANUFACTURING SAME

TDK CORPORATION, Tokyo (...

1. A multilayer capacitor comprising:
a multilayer body constructed by stacking a plurality of dielectric layers formed with an inner electrode;
a terminal electrode formed on a surface of the multilayer body;
a lead conductor drawn from the inner electrode to the surface of the multilayer body and connected to the terminal electrode;
and

a dummy electrode separated from the inner electrode and connected to the terminal electrode;
wherein the terminal electrode has a burned layer and a plating layer each formed on the surface of the multilayer body;
wherein the burned layer covers the whole of the lead conductor and a part of the dummy electrode, in a direction along a
periphery of the dielectric layer, and does not cover the rest of the dummy electrode;

wherein the plating layer covers the rest of the dummy electrode and the burned layer; and
wherein the dummy electrode is disposed on the same dielectric layer with the inner electrode corresponding thereto.

US Pat. No. 9,181,971

BUS BAR AND ELECTRONIC DEVICE

TDK Corporation, Tokyo (...

1. A bus bar comprising:
a bus bar body; and
a spacer provided on the bus bar body, the spacer being an insulator,
wherein the bus bar body includes a first through hole portion forming a first through hole that allows a part of a fixing
member for fixing the bus bar body to be inserted therethrough;

wherein the spacer includes a head portion, a body portion extending from the head portion, and a second through hole portion
forming a second through hole that allows the part of the fixing member to be inserted therethrough and is a through hole
extending from the head portion to the body portion;

wherein when the spacer is provided on the bus bar body, the head portion covers at least a part of a peripheral edge region
of an end opening of the first through hole and the body portion covers an inner peripheral surface of the first through hole
portion;

wherein a surface of the spacer including an extremity of the body portion and a surface of the bus bar body are substantially
in a same plane;

wherein at least a part of a surface of a heat-transfer sheet is in direct contact with an area including both the surface
of the spacer and at least a part of the surface of the bus bar body and the heat transfer sheet releases heat of the bus
bar body; and

wherein an outer peripheral surface of the body portion is fixed to the inner peripheral surface of the first through hole
portion by an interface resisting movement of the spacer toward the head portion side relative to the bus bar body and in
a direction away from the bus bar body.

US Pat. No. 9,177,572

THERMALLY-ASSISTED MAGNETIC RECORDING METHOD

TDK CORPORATION, Tokyo (...

1. A thermally-assisted magnetic recording method to perform information recording to a magnetic recording medium by a thermally-assisted
magnetic recording head having a magnetic pole and a heating element, the method comprising:
performing annealing treatment of the heating element through applying first energy to the heating element and heating the
heating element; and

performing information recording to a predetermined recording region of the magnetic recording medium after the annealing
treatment, the information recording being performed through;

rotating the magnetic recording medium as well as floating the thermally-assisted magnetic recording head above the magnetic
recording medium; and

applying second energy to the heating element to heat a predetermined recording region of the magnetic recording medium as
well as applying a write magnetic field from the magnetic pole to the predetermined recording region,

wherein the first energy is 1.05 to 1.20 times the second energy.

US Pat. No. 9,257,524

LAYERED FILM INCLUDING HETEROEPITAXIAL PN JUNCTION OXIDE THIN FILM

TDK CORPORATION, Tokyo (...

1. A layered film formed on a single crystal substrate, comprising:
a heteroepitaxial PN junction oxide thin film including an N-type semiconductor oxide thin film and a P-type semiconductor
oxide thin film that are each epitaxially grown to have c-axis orientation represented by (00k);

an epitaxially grown buffer layer containing a first buffer sublayer and a second buffer sublayer and serving as an underlayer
for the heteroepitaxial PN junction oxide thin film; and

an epitaxially grown metal thin film disposed between the heteroepitaxial PN junction oxide thin film and the buffer layer,
the metal thin film containing at least one element selected from the group consisting of Pt, Ir, Pd, Ru, and Rh;

wherein:
the first buffer sublayer consists essentially of a ZrO2 film;

the second buffer sublayer consists essentially of a Y2O3 film; and

the N-type semiconductor oxide thin film is composed of a doped perovskite-type compound represented by R(Mx,Dy)O3 or (Rx,Dy)MO3 obtained by doping a perovskite-type compound represented by general formula RMO3 with a metal D other than R and M, and the amount of the metal D is adjusted to x+y=1 and 0.03?y?0.3 to control epitaxial
growth of the P-type semiconductor oxide thin film on the N-type semiconductor oxide thin film so that the P-type semiconductor
oxide thin film has c-axis orientation represented by (00k).

US Pat. No. 9,131,577

LIGHT EMITTING ELEMENT DRIVE DEVICE

TDK Corporation, (JP)

1. A light emitting element drive device, comprising:
a light emitting element;
a power conversion circuit that supplies electric power to the light emitting element;
a dimming switch element that performs an open/close operation for a path in which a current flows in the light emitting element;
a current detection circuit that detects a current value of the current flowing in the light emitting element;
a voltage detection circuit that detects a voltage value of a voltage that is output from the power conversion circuit; and
a control circuit that performs feedback control, wherein
when the dimming switch element is turned ON, the control circuit performs feedback control so as to make the current value
close to a first target value, and the first target value is a predetermined value,

when the dimming switch element is turned OFF, the control circuit performs the feedback control so as to make the voltage
value close to a second target value, and the second target value is set based on the voltage value, and

the second target value is set based on the voltage value that is detected by the voltage detection circuit while the dimming
switch element is turned ON.

US Pat. No. 9,305,698

COIL COMPONENT

TDK CORPORATION, Tokyo (...

1. A coil component comprising:
a coil having a winding wire;
a base supporting the coil; and
a terminal electrode to which a terminal section of the coil is connected, wherein
the base has a first surface substantially parallel to an extending direction of the terminal section of the coil,
the terminal electrode has a first terminal portion printed, on the first surface of the base,
the first surface has a stepped surface including an upper stage surface and a lower stage surface, the upper and lower stage
surfaces facing in the same direction,

the first terminal portion has a stepped shape including an upper stage portion formed on the upper stage surface and a lower
stage portion formed on the lower stage surface,

the upper stage portion has a first terminal surface contacting, the terminal section of the coil, and
the lower stage portion has a second terminal surface positioned on an extension line of the terminal section of the coil
and not contacting the terminal section of the coil.

US Pat. No. 9,293,421

ELECTRONIC COMPONENT MODULE

TDK CORPORATION, Tokyo (...

1. An electronic component module comprising:
an electronic component;
a sealing resin that seals the electronic component; and
a metal film that covers a surface of the sealing resin, wherein
the sealing resin contains a filler of oxide particles,
a part of the filler in the sealing resin is exposed to the surface of the sealing resin,
at least the part of the filler exposed to the surface of the sealing resin includes a crack that extends from an exposed
surface of the filler into an inner portion,

the crack is filled with at least one metal that constitutes the metal film, and
the exposed surface of the filler is substantially flush with a surface of the sealing resin.

US Pat. No. 9,143,010

WIRELESS POWER TRANSMISSION SYSTEM FOR SELECTIVELY POWERING ONE OR MORE OF A PLURALITY OF RECEIVERS

TDK CORPORATION, Tokyo (...

1. A wireless power transmission system which performs non-contact power transmission from a wireless power feeder selectively
to one or more of a plurality of wireless power receivers, each of the plurality of wireless power receivers being provided
with a lamp unit,
each of the plurality of wireless power receivers comprising a power receive resonance circuit including a power receive coil
and a power receive capacitor, and having a resonance frequency, and

the wireless power feeder comprising a power feed coil and a control circuit, the control circuit including a high-frequency
amplifier and a micro-computer, the high-frequency amplifier supplying AC power to the power feed coil at a drive frequency
according to an instruction from the micro-computer, wherein

the micro-computer switches the drive frequency to a frequency that is programmed in advance, in a short period of time;
the drive frequency is time divided;
the control circuit in the wireless power feeder performs power feeding selectively to a wireless power receiver of the plurality
of wireless power receivers by changing frequency of the AC power to the frequency that coincides with the wireless power
receiver to cause residual image effect between adjacent periods of divided time

the power receive resonance circuits in the plurality of wireless power receivers have approximately the same resonance frequency,
the power receive coils in the plurality of wireless power receivers are disposed in distances different from one another
from the power feed coil, respectively,

an area encompassed by windings of the power receive coil in each of the plurality of wireless power receivers is equal to
or larger than ¼ of an area encompassed by windings of the power feed coil, and

the micro computer is programmed in advance with the frequency that corresponds to a relative distance between (i) the power
receive coil of each of the plurality of wireless power receivers and (ii) the power feed coil.

US Pat. No. 9,111,681

THIN FILM CAPACITOR

TDK Corporation, Tokyo (...

1. A thin film capacitor, comprising:
a lower electrode layer;
a dielectric layer that is provided on said lower electrode layer; and
an upper electrode layer that is formed on the dielectric layer;wherein
the lower electrode layer contains at least a Ni electrode layer,
the upper electrode layer configured with at least two layers of a Ni electrode layer and a Cu electrode layer, and
the dielectric layer is in contact with both the Ni electrode layer of the lower electrode layer and the Ni electrode layer
of the upper electrode layer.

US Pat. No. 9,406,420

COIL COMPONENT AND MAGNETIC METAL POWDER CONTAINING RESIN USED THEREFOR

TDK CORPORATION, Tokyo (...

1. A coil component, comprising:
a coil conductor; and
a magnetic metal powder containing resin covering the coil conductor, wherein the magnetic metal powder containing resin includes
a first metal powder having a first average grain diameter, a second metal powder having a second average grain diameter that
is smaller than the first average grain diameter, and a third metal powder having a third average grain diameter that is smaller
than the second average grain diameter,

wherein the first average grain diameter is 15 ?m or more and 100 ?m or less,
wherein the second average grain diameter is 3 ?m or more and less than 10 ?m, and
wherein the third average grain diameter is more than one-fifth of the second average grain diameter and 2 ?m or less.
US Pat. No. 9,305,689

INJECTION MOLDING COMPOSITION AND PRODUCING METHOD THEREOF

TDK CORPORATION, Tokyo (...

1. An injection molding composition comprising a ferrite powder which is a collection of ferrite particles, a first binder
and a second binder, wherein
a softening point of said second binder is lower than that of said first binder,
a weight and a specific surface area of said ferrite powders are represented by Wp [g] and S [m2/g], a weight and a density of said first binder are represented by Wb1 [g] and Db1 [g/cm3], and a weight and a density of said second binder are represented by Wb2 [g] and Db2 [g/cm3], and

a hypothetical thickness Tb1 [nm] of said first binder is calculated by a formula (1) and a hypothetical thickness Tb2 [nm]
of said second binder is calculated by a formula (2), and values obtained therefrom of said Tb1 is 0.6 to 3.0 and of said
Tb2 is 5.0 to 16.0

Tb1=(Wb1×103)/(Db1×Wp×S)  formula (1)

Tb2=(Wb2×103)/(Db2×Wp×S)  formula (2).

US Pat. No. 9,277,869

THIN-FILM PIEZOELECTRIC ELEMENT, THIN-FILM PIEZOELECTRIC ACTUATOR, THIN-FILM PIEZOELECTRIC SENSOR, HARD DISK DRIVE, AND INKJET PRINTER APPARATUS

TDK CORPORATION, Tokyo (...

1. A thin-film piezoelectric element comprising:
a piezoelectric thin film; and a pair of electrode films that sandwich the piezoelectric thin film,
wherein the piezoelectric thin film has an alkali niobate-based perovskite structure represented by the composition formula
(K1-w-xNawSrx)m(Nb1-yZry)O3 and is preferentially oriented to (001),

wherein
0.95?m<1.05, and 0.6?(m·x/y)?0.8.
US Pat. No. 9,263,736

POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY

TDK CORPORATION, Tokyo (...

1. A positive electrode material for a lithium ion secondary battery, comprising:
a first compound represented by Li3V2(PO4)3; and

a second compound selected from vanadium oxide, lithium vanadium oxide, and lithium vanadium phosphate, wherein the content
of the second compound relative to the first compound is 0.1 wt. % or more and 5 wt. % or less.

US Pat. No. 9,083,042

NEGATIVE ELECTRODE ACTIVE MATERIAL, ELECTRODE CONTAINING THE SAME, AND LITHIUM ION SECONDARY BATTERY HAVING THE ELECTRODE

TDK CORPORATION, Tokyo (...

1. A negative electrode active material mainly comprising silicon and silicon oxide, wherein:
when measured with an Ar-ion laser with a wavelength of 514.532 nm as a laser source, an Ar-laser Raman spectrum of the negative
electrode active material includes a peak A corresponding to 950 ±30 cm-1 and a peak B corresponding to 480 ±30cm-1; and

an intensity ratio of the peak B to the peak A (B/A) is in the range of 1 to 10.

US Pat. No. 9,306,111

SEMICONDUCTOR MATERIAL AND METHOD OF PRODUCTION

UNIVERSITE DU LUXEMBOURG,...

1. A method of manufacturing (AgxCu1-x)2ZnSn(SySe1-y)4 thin films, where x and y are independently between 0 and 1, the method comprising:
providing a thin film comprising Ag and/or Cu, the thin film further comprising Zn; and
annealing the thin film in an atmosphere comprising S and/or Se, and further comprising Sn, wherein the annealing comprises
providing an Sn source in the presence of reactive S and/or Se external to the thin film, and heating the Sn source in a non-vacuum
atmosphere to an elevated temperature and pressure in the presence of the thin film;

wherein a vapor pressure of Sn or Sn compounds in the atmosphere essentially in contact with a surface of the thin film is
higher than any partial pressure of Sn present in the thin film whereby Sn from the Sn source is provided to the thin film.

US Pat. No. 9,258,905

LEAD-FREE SOLDER AND ELECTRONIC COMPONENT BUILT-IN MODULE

TDK CORPORATION, Tokyo (...

1. An electronic component built-in module that includes an electronic component and a substrate on which the electronic component
is installed, wherein
a terminal of the electronic component and a terminal of the substrate are joined together by using lead-free solder, and
the lead-free solder includes:
a first metal that contains at least Sn;
a second metal that contains at least a Ni—Fe alloy and contains no greater than 16% of Fe by mass; and
a paste material, wherein the first metal and the second metal are in the form of separated particles and are dispersed in
the paste material,

wherein a ratio of the second metal to a total mass of the lead-free solder is in a range from 5% by mass to 30% by mass inclusive.

US Pat. No. 9,406,430

REACTOR

TDK CORPORATION, Tokyo (...

1. A reactor composed of a pair of yoke portion cores composed of ferrite, a winding portion core disposed spanning the yoke
portion cores, and a coil wound around the winding portion core,
the winding portion core is made of a soft magnetic metal,
a cross sectional area of a part of the winding portion core where the coil is wound is substantially constant,
when the cross sectional area of the part of the winding portion core where the coil is wound is set as S1 and an area of each part of the winding portion core adjacent to each of the yoke portion cores is set as S2, an area ratio of S2/S1 is within a range of 1.3 to 4.0.

US Pat. No. 9,270,166

POWER FACTOR IMPROVEMENT CIRCUIT

TDK Corporation, (JP)

1. A power factor improvement circuit, comprising:
a first series circuit in which a first switching element and a first rectifying element are serially connected;
a second series circuit in which a second switching element and a second rectifying element are serially connected;
a single-phase alternating current power source that has first and second input terminals, the first input terminal being
connected to a first node between the first switching element and the first rectifying element, the second input terminal
being connected to a second node between the second switching element and the second rectifying element;

an inductor element that is connected between a terminal of the first switching element and a terminal of the second switching
element, the terminal of the first switching element being on the other side of the first node, and the terminal of the second
switching element being on the other side of the second node;

a third rectifying element that is connected between the terminal of the first switching element and an output terminal;
a fourth rectifying element that is connected between the terminal of the second switching element and the output terminal;
and

a first capacitor element that is connected between a terminal of the first rectifying element and the output terminal, the
first capacitor also being connected between a terminal of the second rectifying element and the output terminal, the terminal
of the first rectifying element being on the other side of the first node, and the terminal of the second rectifying element
being on the other side of the second node.

US Pat. No. 9,105,405

CERAMIC ELECTRONIC COMPONENT WITH METAL TERMINALS

TDK CORPORATION, Tokyo (...

1. A ceramic electronic component with metal terminals comprising a chip component formed with terminal electrodes at both
ends, and
a pair of metal terminals comprising a flat plate portion having a flat plate portion facing face provided so that it faces
an end face of said chip component and connected to said terminal electrodes via a joining portion, and a mounting portion
connected to one end portion of said flat plate portion and extending approximately perpendicular to said flat plate portion,
wherein

said mounting portion has a mounting portion bottom face forming an angle of approximately 270 degrees with respect to said
flat plate portion, and a mounting portion upper face forming an angle of approximately 90 degrees with respect to said flat
plate portion, and

a solder adhering prevention area having lower wettability than said mounting portion bottom face is formed.

US Pat. No. 9,355,878

SUBSTRATE PROCESSING APPARATUS

TDK Corporation, Tokyo (...

1. A substrate processing apparatus comprising:
a first chamber and a second chamber that are provided in direct contact and stacked one above the other;
a first opening that is provided in a first wall of the first chamber that faces the second chamber, and that allows a substrate
to pass through the first opening;

a second opening that is provided in a wall of the second chamber that faces the first chamber, that is in communication with
the first opening, and that allows the substrate to pass through the second opening;

a first opening and closing member that is provided inside the first chamber so as to move up and down and that opens and
closes the first opening;

a first substrate mounting member that is provided closer to the second chamber than the opening and closing member, that
mounts the substrate and that moves the substrate between within the first chamber and within the second chamber;

a first substrate processing member that is provided in the second chamber and that processes the substrate;
a third opening that is provided in a second wall of the first chamber that faces the first wall of the first chamber, and
that allows the substrate to pass through the third opening;

a third chamber that is provided stacked above or below the first chamber on the opposite side of the first chamber to the
second chamber;

a fourth opening that is provided in a wall of the third chamber that faces the first chamber, that is in communication with
the third opening, and that allows the substrate to pass through the fourth opening;

a second opening and closing member that is provided inside the first chamber so as to move up and down and that opens and
closes the third opening;

a second substrate mounting member that is provided closer to the third chamber than the second opening and closing member,
that mounts the substrate and that moves the substrate between within the first chamber and within the third chamber;

a second substrate processing member that is provided in the third chamber and that processes the substrate;
a fifth opening that is provided in a third wall of the first chamber that intersects with the first and second walls of the
first chamber, and that allows the substrate to pass through the fifth opening;

a fourth chamber having approximately the same height or less as the first chamber that is attached to the third wall of the
first chamber, and that includes a wall provided with a sixth opening in communication with the fifth opening;

a substrate transport member that is provided inside the fourth chamber, that transports the substrate between the fourth
chamber and the first chamber or the first or second substrate mounting member positioned within the first chamber;

a gate valve disposed between said fifth and sixth openings;
a first drive source that is provided outside of the first chamber and that moves the first opening and closing member up
or down;

a second drive source that is provided outside of the first chamber and that moves the second opening and closing member up
or down; and

a third drive source that is provided outside the first chamber and outside the third chamber and that moves the second substrate
mounting member up or down.

US Pat. No. 9,356,474

WIRELESS POWER FEEDER AND WIRELESS POWER TRANSMISSION SYSTEM

TDK CORPORATION, Tokyo (...

1. A wireless power feeder that wirelessly feeds power from a feeding coil to a receiving coil, comprising:
the feeding coil;
a power transmission control circuit that supplies AC power at a drive frequency to the feeding coil to make the feeding coil
feed the AC power to the receiving coil;

a phase detection circuit that detects a phase difference between a voltage phase of the AC power and a current phase thereof;
and

a protection circuit that monitors current flowing in the feeding coil, wherein
the power transmission control circuit adjusts the drive frequency in accordance with the detected phase difference,
the protection circuit adjusts the detected phase difference in an increasing direction when the current flowing in the feeding
coil increases,

the protection circuit converts part of AC current flowing in the feeding coil into DC current, compares a first current level
signal indicating a current level of the DC current and a reference level signal indicating a threshold value, and adjusts
the phase difference in the increasing direction when a value of the first current level signal is greater than that of the
reference level signal, and

the protection circuit does not perform adjustment of the phase difference when the value of the first current level signal
is smaller than that of the reference level signal.

US Pat. No. 9,331,262

THIN FILM PIEZOELECTRIC ELEMENT, THIN FILM PIEZOELECTRIC ACTUATOR, THIN FILM PIEZOELECTRIC SENSOR, HARD DRIVE DISK, AND INKJET PRINTER DEVICE

TDK CORPORATION, Tokyo (...

1. A thin film piezoelectric element comprising a potassium sodium niobate thin film having a structure in which a plurality
of crystal grains are present in a film thickness direction; and a pair of electrode films sandwiching the potassium sodium
niobate thin film,
wherein when the potassium sodium niobate thin film is divided into three regions of the same thickness in the film thickness
direction and average crystal grain sizes A1, A2, and A3 of the respective regions are determined, a ratio m/M of the smallest average crystal grain size m among A1, A2, and A3 to the largest average crystal grain size M among A1, A2, and A3 is 10% to 80% and

the region having the smallest average crystal grain size m lies next to one of the pair of electrode films.

US Pat. No. 9,337,410

MULTILAYER PIEZOELECTRIC ELEMENT

TDK Corporation, Tokyo (...

1. A multilayer piezoelectric element comprising;
an element body having a first and second internal electrodes exposure surface comprising a piezoelectric active area, wherein
a first internal electrode faces a second internal electrode sandwiching piezoelectric body layer in-between along laminating
direction, and a piezoelectric inactive area, wherein the piezoelectric body layer contacts only the first internal electrode
or the second internal electrode at one face along laminating direction, or the first internal electrodes face each other
or the second internal electrodes face each other sandwiching piezoelectric body layer in-between along laminating direction,

an insulating layer which covers the piezoelectric active area of the first and second internal electrodes exposure surface,
a resistance layer which is isolated from the piezoelectric active area by the insulating layer, placed at the first and second
internal electrodes exposure surface in order to connect at least a part of the first internal electrode in the piezoelectric
inactive area and at least a part of the second internal electrode in the piezoelectric inactive area, and has lower electrical
resistance value relative to that of the piezoelectric body layer,

a first external electrode electrically connected to the first internal electrode, and
a second external electrode electrically connected to the second internal electrode.

US Pat. No. 9,244,296

OPTICAL MODULATOR

TDK CORPORATION, Tokyo (...

1. An optical modulator, comprising:
a single-crystal substrate;
a lithium niobate film formed on a main surface of the single-crystal substrate, the lithium niobate film being an epitaxial
film and having a ridge;

a buffer layer formed on the ridge;
a first electrode formed on the buffer layer; and
a second electrode separated from the first electrode,
the second electrode being in contact with the lithium niobate film.

US Pat. No. 9,489,972

LIGHT SOURCE UNIT, HEAT-ASSISTED MAGNETIC RECORDING HEAD USING THE SAME, AND LIGHT SOURCE FOR LIGHT SOURCE UNIT

SAE MAGNETICS (H.K.) LTD....

1. A light source unit comprising:
a substrate;
a light source that is mounted to the substrate, wherein the light source includes;
a first emission part that emits a forward light, the forward light being a laser light in an oscillation state,
a second emission part that is located on a side opposite to the first emission part and that emits a rearward light, the
rearward light being a laser light in an oscillation state, and

a light leakage part located at a position different from the first emission part and the second emission part; and
a photodetector that is provided on the substrate, wherein the photodetector has a light receiving surface for detecting a
leakage light that leaks from the light leakage part.

US Pat. No. 9,396,877

HIGH VOLTAGE CAPACITOR

TDK CORPORATION, Tokyo (...

1. A high voltage capacitor comprising:
a columnar capacitor element body, made of a dielectric material, having a pair of principal surfaces opposing each other;
a pair of electrodes arranged on the respective principal surfaces in the capacitor element body;
a pair of terminal metal fittings connected to the respective electrodes;
a case containing a resin material and having a bottom part formed with an opening for exposing one of the terminal metal
fittings and a trunk part extending from an edge of the bottom part in a direction intersecting the bottom part, the bottom
part and the trunk part defining a space for containing the capacitor element body; and

a resin part made of an insulating material and arranged within the case so as to seal the capacitor element body contained
in the space;

wherein the case has a degree of hardness lower than that of the resin part,
wherein the one terminal metal fitting is exposed by being inserted into the opening formed in the bottom part,
wherein at least the one terminal metal fitting has an outer peripheral surface provided with a projection extending along
a circumferential direction of the outer peripheral surface,

wherein an edge portion defining the opening in the bottom part is in close contact with the outer peripheral surface of the
one terminal metal fitting inserted in the opening, and

wherein the edge portion is provided with a positioning part for abutting against the projection of the one terminal metal
fitting and defining a position of the one terminal metal fitting.

US Pat. No. 9,478,355

METHOD OF MANUFACTURING A CPP DEVICE WITH A PLURALITY OF METAL OXIDE TEMPLATES IN A CONFINING CURRENT PATH (CCP) SPACER

TDK Corporation, Tokyo (...

1. A method of forming a confining current path (CCP) spacer in a magnetic sensor structure, comprising:
(a) forming a first copper layer on a ferromagnetic layer;
(b) forming an amorphous layer made of metal, alloy, or metal oxide on said first Cu layer;
(c) forming a second copper layer with a thickness of 0 to 6 Angstroms on the amorphous layer;
(d) depositing an oxidizable layer on the second copper layer;
(e) performing a pre-ion treatment (PIT) followed by an ion-assisted oxidation (IAO) to transform the amorphous layer and
at least a portion of the first copper layer into a first metal oxide template having segregated Cu metal paths therein, and
to transform the oxidizable layer into a second metal oxide template having segregated Cu metal paths formed therein; and

(f) depositing a third Cu layer on the second metal oxide template.

US Pat. No. 9,613,753

ELECTRONIC DEVICE COMPRISING CHIP COMPONENT AND EXTERNAL TERMINAL

TDK Corporation, Tokyo (...

1. An electronic device comprising:
a chip component having a terminal electrode formed on an end surface of an element body; and
an external terminal electrically connected to the terminal electrode, wherein the external terminal comprises:
a terminal electrode connection part connected to the terminal electrode to face to the end surface of the element body;
a mounting connection part connectable to a mounting surface;
a joint part which joins the terminal electrode connection part with the mounting connection part to separate one side surface
of the element body closest to the mounting surface therefrom; and

a support part which protrudes to the one side surface of the element body and supports the one side surface, wherein
a width (W1) of the joint part along a direction parallel to the mounting surface is smaller than a width (W0) of the terminal electrode connection part,

the joint part and the support part are dislocated along a width direction of the terminal electrode connection part,
the support part is comprised of a pair of support parts protruding from both sides along the width direction of the terminal
electrode connection part toward the one side surface of the element body,

the joint part is located between the pair of support parts along the width direction of the terminal electrode connection
part,

a width (W2) of the mounting connection part is larger than the width (W1) of the joint part along the same direction thereas, and

an end of the joint part connected to the mounting connection part on the mounting surface extends inwardly from a plane including
the end surface of the element body.

US Pat. No. 9,907,179

ELECTRONIC CIRCUIT PACKAGE

TDK CORPORATION, Tokyo (...

1. An electronic circuit package comprising:
a substrate having a power supply pattern;
an electronic component mounted on a surface of the substrate;
a magnetic mold resin formed of a composite magnetic material including a thermosetting resin material and a magnetic filler,
the magnetic mold resin covering the surface of the substrate so as to embed therein the electronic component; and

a metal film connected to the power supply pattern and covering at least a top surface of the magnetic mold resin,
wherein a volume resistance value of the magnetic mold resin is equal to or larger than 1010?, and a resistance value at an interface between the top surface of the magnetic mold resin and the metal film is equal to
or larger than 106?.

US Pat. No. 9,300,023

THIN FILM BALUN

TDK CORPORATION, Tokyo (...

1. A thin film balun comprising:
an unbalanced transmission line provided in a first layer;
a balanced transmission line provided in a second layer, facing the unbalanced transmission line in a lamination direction
and electromagnetically coupled to the unbalanced transmission line;

a capacitor including a capacitor electrode, the capacitor electrode facing a part of the unbalanced transmission line in
the lamination direction and the part of the unbalanced transmission line facing the balanced transmission line in the lamination
direction; and

an unbalanced terminal connected to the unbalanced transmission line and the capacitor electrode.

US Pat. No. 9,391,354

DIRECTIONAL COUPLER

TDK CORPORATION, Tokyo (...

1. A directional coupler comprising:
an input port;
an output port;
a coupling port;
a terminal port;
a main line connecting the input port and the output port; and
a first subline section and a second subline section each of which is formed of a line configured to be electromagnetically
coupled to the main line; and

a matching circuit provided between the first subline section and the second subline section, wherein
each of the first subline section and the second subline section has a first end and a second end opposite to each other,
the first end of the first subline section is connected to the coupling port,
the first end of the second subline section is connected to the terminal port,
the matching circuit includes a first path connecting the second end of the first subline section and the second end of the
second subline section, and a second path connecting the first path and a ground,

the first path includes a first inductor, and
the second path includes a first capacitor and a second inductor connected in series.

US Pat. No. 9,349,627

LID OPENING/CLOSING SYSTEM FOR CLOSED CONTAINER AND SUBSTRATE PROCESSING METHOD USING SAME

TDK CORPORATION, Tokyo (...

1. A method of processing an object to be stored a storage container having a substantially box-like body with an opening
on one side thereof, and a detachable lid that closes said opening, comprising:
opposing said opening of the storage container to a first opening portion provided on a wall that defines a particle-controlled
mini-environment and a second mini-environment isolated from the mini-environment, wherein said first opening portion leads
to the second mini-environment and wherein a second opening portion connects said second mini-environment to said mini-environment;

holding said lid by a door provided in said second mini-environment and that closes said first opening portion;
driving said door, while holding said lid, to move from a state where the first opening portion is closed to a retracted posture
where said first opening portion is opened and said second opening portion is closed by said door, and to then move in said
second mini-environment to a position where both of the first opening portion and the second opening portion are opened, while
maintaining the retracted posture;

bringing said object into or out of said storage container and into or out of said mini-environment via said second mini-environment,
by moving said object through said opening, said first opening portion and said second opening portion; and

while said door is in the retracted posture where said first opening portion is opened and said second opening portion is
closed, causing a gas to flow downward in said second mini-environment from an upper edge to the lower edge of said first
opening portion, and then to flow from said second mini-environment into said mini-environment at a location below said second
opening portion.

US Pat. No. 9,736,942

COIL COMPONENT, ITS MANUFACTURING METHOD, AND CIRCUIT SUBSTRATE PROVIDED WITH THE COIL COMPONENT

TDK CORPORATION, Tokyo (...

1. A coil component comprising:
a drum-shaped core having a pair of flange portions and a winding core positioned between the pair of flange portions;
a plurality of terminal electrodes formed on each of the flange portions; and
a plurality of wires wound around the winding core and connected to the terminal electrodes, wherein
each of the flange portions includes:
a mounting surface substantially parallel to an axial direction of the winding core; and
first and second side surfaces substantially parallel to the axial direction of the winding core and substantially parallel
to each other,

the mounting surface has a plurality of convex portions and at least one concave portion positioned between the plurality
of convex portions,

each of the terminal electrodes is formed at least on an associated one of the convex portions such that the terminal electrodes
are isolated by the concave portion,

the plurality of convex portions includes a first convex portion closest to the first side surface, the first convex portion
having a third side surface that is substantially parallel to the first side surface,

the plurality of convex portions includes a second convex portion closest to the second side surface, the second convex portion
having a fourth side surface that is substantially parallel to the second side surface, and

a level difference between the first side surface and the third side surface is larger than a level difference between the
second side surface and the fourth side surface.

US Pat. No. 9,093,712

ACTIVE MATERIAL, MANUFACTURING METHOD FOR ACTIVE MATERIAL, AND LITHIUM ION SECONDARY BATTERY

TDK CORPORATION, Tokyo (...

1. An active material having a layered structure and represented by the following composition formula (1):
LiyNiaCobMncMdOxFz1Pz2  (1)

wherein:
M is at least one element selected from the group consisting of Al, Si, Zr, Ti, Fe, Mg, Nb, Ba and V, and
1.9?(a+b+c+d+y)?2.1,
1.0?y?1.3,
0 0?b?0.25,
0.3?c?0.7,
0?d?0.1,
0.07?z1?0.15,
0.01?z2?0.1, and
1.9?(x+z1)?2.1 are satisfied.

US Pat. No. 9,930,779

THROUGH WIRING SUBSTRATE

TDK CORPORATION, Tokyo (...

1. A through wiring substrate comprising:a substrate having a pair of principal surfaces and a through hole penetrating between the pair of principal surfaces, the pair of principal surfaces and an inner surface of the through hole being electrically insulative;
a through electrode provided on the inner surface of the through hole;
a first wiring layer provided on one of the principal surfaces and connected to the through electrode;
a second wiring layer provided on the other of the principal surfaces and connected to the through electrode;
an underlying metal layer provided between the one of the principal surfaces and the first wiring layer, the underlying metal layer having a first underlying metal layer containing at least one selected from the group consisting of Cr, Ni, W, Ta and Ti and a second underlying metal layer containing at least one selected from the group consisting of Cu and Al on the first underlying metal layer; and
catalyst metal particles existing between the underlying metal layer and the first wiring layer and between the through electrode and the inner surface of the through hole, the second underlying metal layer being between the first underlying metal layer and the catalyst metal particles.

US Pat. No. 9,177,687

COATING AND ELECTRONIC COMPONENT

TDK CORPORATION, Tokyo (...

1. An electronic component comprising a signal transfer unit, the signal transfer unit comprising:
a substrate;
a conductor bonded to the substrate; and
a coating covering the conductor;
wherein the coating comprises a palladium layer having a crystal plane whose orientation rate is 65% or more, and wherein
the crystal plane whose orientation rate is 65% or more is a (111) plane or (200) plane.

US Pat. No. 9,159,467

DIELECTRIC CERAMIC COMPOSITION, ELECTRONIC ELEMENT, AND COMPOSITE ELECTRIC ELEMENT

TDK CORPORATION, Tokyo (...

1. A dielectric ceramic composition comprising:
a main ingredient containing SiO2—K2O—B2O3-based glass of 40 to 65 weight % of the main ingredient, quartz of 35 to 50 weight % of the main ingredient, and amorphous
silica of remaining weight % of the main ingredient; and

a subsidiary ingredient containing alumina and K2O-MO—SiO2—B2O3-based glass, M being selected from the group consisting of Ca and Sr,

wherein the weight % ratio of alumina to the main ingredient is from 1.5:100 to 4:100,
wherein the weight % ratio of K2O-MO—SiO2—B2O3-based glass to the main ingredient is from 5:100 to 20:100, and

wherein the K2O-MO—SiO2—B2O3-based glass has a linear expansion coefficient of 105×10?7/° C. to 125×10?7/° C.

US Pat. No. 9,271,408

POWER SUPPLY DEVICE

TDK Corporation, (JP)

1. A power supply device, comprising:
a circuit board including:
an arrangement surface;
a rear surface on an opposite side of the circuit board as the arrangement surface;
a through hole extending from the arrangement surface to the rear surface; and
an insertion mounted circuit component, a connector and a surface mounted light emitting component that is provided for confirming
an operation state of the power supply device mounted thereon; and

a chassis that holds the circuit board from sides and the rear surface of the circuit board, the chassis having an opening
that exposes the connector, wherein

the surface mounted light emitting component is surface mounted on the rear surface of the circuit board,
the through hole is provided adjacent to the surface mounted light emitting component so as to guide light emitted from the
surface mounted light emitting component toward the opening of the chassis,

the surface mounted light emitting component is configured with a light emitting member and an optical dispersion member operably
associated with the light emitting member, and

an edge of the optical dispersion member is located inside the through hole in a plan view.
US Pat. No. 9,111,674

R-T-B BASED PERMANENT MAGNET

TDK CORPORATION, Tokyo (...

1. A R-T-B based permanent magnet, comprising:
a R-T-B based structure in which a R1-T-B based crystallizing layer and a (Y,Ce)-T-B based crystallizing layer are stacked,
wherein:
R1 is at least one rare earth element except Y and Ce, and
T is at least one transition metal element including Fe or a combination of Fe and Co.

US Pat. No. 9,065,049

THIN FILM PIEZOELECTRIC DEVICE

TDK CORPORATION, Tokyo (...

1. A thin film piezoelectric device comprising a pair of electrode layers and a piezoelectric thin film interposed between
the pair of electrode layers, wherein the piezoelectric thin film contains a rare gas element and has a content gradient of
the rare gas element in the thickness direction of the piezoelectric thin film.

US Pat. No. 9,942,988

CIRCUIT BOARD AND POWER SUPPLY APPARATUS

TDK Corporation, (JP)

1. A circuit board comprising:a base substrate;
a busbar disposed on a component mounting surface of the base substrate; and
an electronic component that is disposed on the component mounting surface of the base substrate and has a plurality of connection terminals, at least one of the connection terminals is soldered to a component connecting end portion that extends from a base portion of the busbar,
wherein the base substrate is provided with an opening portion into which the component connecting end portion is capable of being inserted,
a first insertion portion is provided in the component connecting end portion, and the connection terminal is inserted through the first insertion portion, and
the busbar is fixed to the base substrate so that the component connecting end portion is inserted into the opening portion with a soldering surface positioned closer to a rear surface side of the base substrate than the component mounting surface of the base substrate, and the soldering surface is located on a side of the component connecting end portion where the terminal inserted through the first insertion portion protrudes.

US Pat. No. 9,496,088

ELECTRONIC COMPONENT AND METHOD OF MANUFACTURING ELECTRONIC COMPONENT

TDK CORPORATION, Tokyo (...

1. An electronic component comprising:
an element body having a pair of end faces opposing each other, a pair of main faces opposing each other while extending so
as to connect the pair of end faces to each other, and a pair of side faces opposing each other while extending so as to connect
the pair of main faces to each other;

an outer electrode, formed on one end face of the pair of end faces, for covering portions of the main faces and side faces
adjacent to one end face; and

an insulating layer that covers surfaces of electrode portions of the outer electrode located on the portions of the side
faces, without covering the portions of the main faces that are not covered by the outer electrode,

wherein the insulating layer covers areas of the pair of side faces that are not covered by the outer electrode, and
the insulating layer is directly formed on the electrode portions of the outer electrode and the area of the pair of side
faces.

US Pat. No. 9,324,595

LOAD PORT APPARATUS AND METHOD OF DETECTING OBJECT TO BE PROCESSED

TDK Corporation, Tokyo (...

1. A load port apparatus that opens/closes a lid of a pod, which is an airtight container having an opening through which
objects to be processed are brought into/out of it and storing the objects to be processed in such a way that they are arranged
along a predetermined arrangement direction in an overlapping manner with spaces therebetween, to allow transfer of the objects
to be processed into/out of the pod through the opening, the load port apparatus being to be attached to an attachment surface
of a semiconductor processing apparatus which applies predetermined processing on the objects to be processed and comprising:
a support table on which the pod can be placed;
a door that can hold the lid of the pod placed on the support table and opens/closes the opening from an interior side of
the semiconductor processing apparatus;

a sensor that detects the presence/absence of the objects to be processed in the pod;
a mapping frame that supports the sensor;
a first driving unit that linearly drives the mapping frame in a first linear direction parallel to the predetermined arrangement
direction along which the objects to be processed are arranged in an overlapping manner; and

a second driving unit that linearly drives the mapping frame in a second linear direction oblique to the first direction,
wherein the second linear direction crosses a direction parallel to the first linear direction in such a way as to form an
acute angle in a side in which the sensor exists.

US Pat. No. 9,136,820

PIEZOELECTRIC DEVICE

TDK CORPORATION, Tokyo (...

1. A piezoelectric device comprising:
a first electrode film;
a piezoelectric film provided on the first electrode film, the piezoelectric film being made of PZT (lead zirconate titanate),
KNN (potassium sodium niobate), BT (barium titanate), LN (lithium niobate), BNT (bismuth sodium titanate), ZnO (zinc oxide),
or AlN (aluminum nitride);

a second electrode film provided on the piezoelectric film, the second electrode film being made of palladium (Pd), platinum
(Pt), rhodium (Rh), gold (Au), ruthenium (Ru), iridium (Ir), molybdenum (Mo), titanium (Ti), or tantalum (Ta), and

a second stress control film provided on the second electrode film, the second stress control film being made of inorganic
materials selected from Pd, Co, Ni, Au, Cu, Ag, and Ti; alloys composed of elements selected from Ni, Fe, Co, Cr, Al, and
Mg; or inorganic oxides selected from Nb2O5, Y2O3, TiO2, MgO, BaO, CaO, and SrO,

wherein the second stress control film is in direct contact with the second electrode film, and
wherein a linear expansion coefficient of the second stress control film is larger than linear expansion coefficients of the
second electrode film and the piezoelectric film.

US Pat. No. 9,589,713

SINTERED FERRITE MAGNET AND MOTOR PROVIDED THEREWITH

TDK CORPORATION, Tokyo (...

1. A sintered ferrite magnet comprising a main phase of an M type Sr ferrite having a hexagonal crystal structure, wherein
an amount of Zn is 0.05 to 1.35 mass % in terms of ZnO,
the sintered ferrite magnet does not substantially include a rare-earth element (R), and
the following Formula (1) is satisfied, where a total amount of Sr, Ba and Ca is M3 in terms of mol, a total amount of Fe,
Co, Mn, Zn, Cr and Al is M4 in terms of mol, and an amount of Si is M5 in terms of mol,

0.5?{M3?(M4/12)}/M5?4.8  (1).

US Pat. No. 9,437,865

ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY

TDK CORPORATION, Tokyo (...

1. An active material in the form of a solid solution for lithium ion secondary battery, the active material having a layered
crystal structure and expressed by a compositional formula (1) below,
LiyNiaCobMncMdOx (1) where M is at least one element selected from the group consisting of Al, Si, Zr, Ti, Fe, Mg, Nb, Ba, and V; 1.9?(a+b+c+d+y)?2.1;
1.05?y?1.35; 0
wherein 0.69?Ni?/Ni??0.85, where Ni? is a Ni composition amount at a center portion of a primary particle of the active material, and Ni? is a Ni composition amount in a region extending from the active material surface in a depth direction by approximately 30
nm,

wherein FWHM (003) in x-ray diffraction pattern/FWHM (104) in x-ray diffraction pattern ?0.57.

US Pat. No. 9,424,982

TRANSFORMER

TDK CORPORATION, Tokyo (...

1. A transformer comprising:
a bobbin, wherein
the bobbin is provided with a cylinder portion on which a core leg penetrating hole, where a magnetic core is inserted, is
formed,

the cylinder portion is provided with a first winding part where a first wire, forming either one of a primary coil or a secondary
coil, is wound, and a second winding part where a second wire, forming the another one of the primary coil or the secondary
coil, is wound, at a position different from the first winding part in an axial direction,

at an outer circumference of the cylinder portion located between the first winding part and the second winding part, an insulating
partition collar is formed,

at least on the first winding part, a winding partition collar, separating mutually adjacent wire winding parts along a winding
axis of the first wire in respective sections, is formed,

at the winding partition collar, at least one communication groove, communicating the sections adjacent to each other, is
formed,

at least the first wire is ?-wound around the first winding part,
a lower part of a winding axis direction is a mounting surface of the transformer, and
two pairs of split middle leg portions of two split cores having a U-shaped cross section are respectively inserted into the
core leg penetrating hole from upper and lower parts of the winding axis direction.

US Pat. No. 9,318,244

SOFT MAGNETIC POWDER CORE

TDK CORPORATION, Tokyo (...

1. A soft magnetic powder core, wherein,
glass portions are scattered among soft magnetic particles,
each of said soft magnetic particles comprises a core particle with iron as the main component and an insulating coating layer
containing at least P, O and Fe,

a junction portion with iron oxide as the main component is further formed between each of said soft magnetic particles and
each of said glass portions.

US Pat. No. 9,299,653

ELECTRONIC COMPONENT AND METHOD FOR PRODUCING SAME

TDK CORPORATION, Tokyo (...

1. An electronic component comprising:
an inorganic substrate;
a wet plating-less conductor film formed on a surface of said substrate, at least a part of the conductor film having wire
bonding sections; and

bonding wires directly bonded to the wire bonding sections within at least a part of the conductor film;
wherein:
the wire bonding sections contain:
an Ag-based metal formed of Ag or an alloy having Ag as a main constituent; and
a metal oxide coating said Ag-based metal and having, as a constituent element, any of the elements selected from the group
consisting of Al, Zr, Ti, Y, Ca, Mg, and Zn; and

the metal oxide that coats the Ag-based metal is present in an amount in a range of from 0.02 to 0.1 parts by mass relative
to 100 parts by mass of the Ag-based metal.

US Pat. No. 9,300,027

DIRECTIONAL COUPLER

TDK Corporation, Tokyo (...

1. A directional coupler comprising:
a first line capable of transmitting a high-frequency signal therethrough;
a second line arranged for electromagnetic coupling with said first line;
a first port disposed at one end of said first line;
a second port disposed at the other end of said first line;
a third port disposed at one end of said second line; and
a fourth port disposed at the other end of said second line,
wherein said first and second lines and said first, second, third, and fourth ports are arranged in a laminated board having
a plurality of conductor layers including a first conductor layer and a second conductor layer laminated through an insulating
layer,

said first line and said second line are disposed on said first conductor layer,
said first line and said second line are routed on said first conductor layer to extend in close proximity to and in parallel
with each other, to form an intra-layer coupling zone for developing electromagnetic coupling between said first line and
said second line,

said second line is routed on said second conductor layer such that said second line partially overlaps with said first line
disposed on said first conductor layer with respect to a length-wise direction, when viewed in plan, to form an inter-layer
coupling space for developing electromagnetic coupling between said second line on said second conductor layer and said first
line on said first conductor layer,

said laminated board is rectangular in shape when viewed in plan,
said first conductor layer and said second conductor layer are both arranged horizontally within said laminated board and
each have a first corner, a second corner adjacent to said first corner, a third corner located diagonal to said first corner
when viewed in plan, and a fourth corner located diagonal to said second corner,

said first port is disposed at a first corner on said first conductor layer, and said third port is disposed at a second corner
adjacent to said first corner on said first conductor layer,

said first line extending from said first port and said second line extending from said third port extend in close proximity
to and in parallel with each other to form said intra-layer coupling zone on said first conductor layer, and said first line
and said second line spirally extend to each draw a spiral from a peripheral area to a central area of said first conductor
layer and to each be wound more than one turn, and said first line is connected to a first via hole in the central area of
said first conductor layer, and is routed to a central area of said second conductor layer through said first via hole, and
said second line is connected to a second via hole and routed to the central area of said second conductor layer through said
second via hole,

said second port is disposed at one of said third corner and said fourth corner on said second conductor layer, and said fourth
port is disposed at the other of said third corner and said fourth corner or between said third corner and said fourth corner
on said second conductor layer,

said first line extending from said first via hole to said second port and said second line extending from said second via
hole to said fourth port extend in close proximity to and in parallel with each other to form said intra-layer coupling zone
within said second conductor layer, and said first line and said second line spirally extend to each draw a spiral from a
central area to a peripheral area of said second conductor layer and to each be wound more than one turn, said intra-layer
coupling zone spirally extending on said first conductor layer overlaps with said intra-layer coupling zone spirally extending
on said second conductor layer, when viewed in plan, such that said first line on said first conductor layer and said second
line on said second conductor layer overlap with each other, while said second line on said first conductor layer and said
first line on said second conductor layer overlap with each other, when viewed in plan, to form said inter-layer coupling
space, in a manner that a double coupling space is formed for developing the electromagnetic coupling on the same conductor
layer and the electromagnetic coupling across different conductor layers,

said double coupling space is formed substantially over the entire length of said first and second lines except for an end
connected to said first port, an end connected to said third port, an end connected to said second port, an end connected
to said fourth port, and an end connected to said via hole, and

both said first line and said second line are disposed on only said first and second conductor layers.

US Pat. No. 9,160,176

WIRELESS POWER FEEDER, WIRELESS POWER RECEIVER, AND WIRELESS POWER TRANSMISSION SYSTEM

TDK Corporation, Tokyo (...

1. A wireless power feeder that wirelessly feeds power from a feeding coil to a moving object including a receiving coil,
comprising:
a plurality of feeding coils arranged along a moving direction of the moving object; and
a power supply circuit supplying AC power to the plurality of feeding coils, wherein
the power supply circuit makes a first feeding coil supply AC power to the moving object when the moving object passes through
the first feeding coil and preparing power feeding from a second feeding coil through which the moving object has not passed,

the power supply circuit includes a first power transmission control circuit supplying AC power to the first feeding coil
and a second power transmission control circuit supplying AC power to the second feeding coil,

the first power transmission control circuit transmits a power feeding request signal to the second power transmission control
circuit when supplying AC power to the first feeding coil,

the second power transmission control circuit enters a power feeding standby state to prepare power feeding from the second
feeding coil when receiving the power feeding request signal,

the first power transmission control circuit transmits a power feeding condition of the first feeding coil to the second power
transmission control circuit, and

the second power transmission control circuit supplies AC power to the second feeding coil according to the power feeding
condition.

US Pat. No. 9,129,622

CPP-TYPE MAGNETORESISTANCE EFFECT ELEMENT AND MAGNETIC DISK DEVICE

TDK Corporation, Tokyo (...

1. A magnetoresistive effect element of a current perpendicular to plane (CPP) structure in which a sense current is applied
in a lamination direction, the magnetoresistive effect element comprising:
a magnetoresistive effect part; and
an upper shield layer and a lower shield layer that are laminated and formed in a manner sandwiching the magnetoresistive
effect part from above and below, wherein

the magnetoresistive effect part comprises
a nonmagnetic intermediate layer, and
a first ferromagnetic layer and a second ferromagnetic layer that are laminated and formed in a manner sandwiching the nonmagnetic
intermediate layer from above and below,

the upper shield layer and the lower shield layer have inclined magnetization structures in which magnetizations of the upper
shield layer and the lower shield layer are respectively inclined with respect to a track width direction,

the magnetizations of the upper shield layer and the lower shield layer are mutually substantially orthogonal,
the first ferromagnetic layer is indirectly magnetically coupled with the upper shield layer via a first exchange coupling
function gap layer that is positioned between the first ferromagnetic layer and the upper shield layer, such that a magnetization
of the first ferromagnetic layer is inclined with respect to the track width direction,

the second ferromagnetic layer is indirectly magnetically coupled with the lower shield layer via a second exchange coupling
function gap layer that is positioned between the second ferromagnetic layer and the lower shield layer, such that a magnetization
of the second ferromagnetic layer is inclined with respect to the track width direction,

the first ferromagnetic layer has a rectangular shape which has two sides parallel with respect to the track width direction
and two sides orthogonal with respect to the track width direction when it is viewed from the upper part of the lamination
direction,

the second ferromagnetic layer has a rectangular shape which has two sides parallel with respect to the track width direction
and two sides orthogonal with respect to the track width direction when it is viewed from the upper part of the lamination
direction, and

the magnetoresistive effect element does not have an applying part to apply the bias magnetic field with respect to the first
ferromagnetic layer and the second ferromagnetic layer.

US Pat. No. 9,076,576

CHIP THERMISTOR AND THERMISTOR ASSEMBLY BOARD

TDK CORPORATION, Tokyo (...

1. A chip thermistor comprising:
a thermistor element body having first and second principal faces opposed to each other in a first direction;
first and second electrodes arranged as separated from each other in a second direction perpendicular to the first direction,
on the first principal face of the thermistor element body; and

a third electrode arranged so as to lap over the first and second electrodes, when viewed from the first direction, on the
second principal face of the thermistor element body,

wherein, when viewed from the first direction, the first principal face is located inside an outer contour line of the second
principal face and the first and second electrodes are located inside an outer contour line of the third electrode.

US Pat. No. 9,601,816

DIELECTRIC LINE AND ELECTRONIC COMPONENT

TDK CORPORATION, Tokyo (...

1. A dielectric line comprising:
a line portion formed of a first dielectric and including no conductor, the first dielectric having a first relative permittivity
of 1,000 or higher, the line portion being configured to propagate one or more electromagnetic waves of one or more frequencies
within a range of 1 to 10 GHz; and

a surrounding dielectric portion formed of a second dielectric having a second relative permittivity lower than the first
relative permittivity,

wherein in a cross section orthogonal to a direction of propagation of the one or more electromagnetic waves through the line
portion, the surrounding dielectric portion is present around the line portion and in contact with an entire perimeter of
the line portion.

US Pat. No. 9,655,246

ELECTRONIC COMPONENT WITH REDUCED ELECTROSTRICTIVE VIBRATION

TDK CORPORATION, Tokyo (...

1. An electronic component comprising: a multilayer capacitor; and an interposer on which the multilayer capacitor is mounted,
wherein the multilayer capacitor comprises:
a multilayer body of a substantially rectangular parallelepiped shape in which a plurality of dielectric layers and a plurality
of internal electrodes are stacked; and

a pair of external electrodes disposed on ends in a first direction in the multilayer body and each connected to a corresponding
internal electrode of the plurality of internal electrodes,

wherein the interposer comprises:
a substrate including a first principal face of a planar shape opposed to the multilayer capacitor, a second principal face
of a planar shape opposed to the first principal face, first and second side faces of a planar shape opposed to each other
in the first direction, and third and fourth side faces of a planar shape opposed to each other in a second direction perpendicular
to both the first direction and a direction in which the first and second principal faces are opposed;

a pair of first electrodes disposed on the first and second side face sides of the first principal face and each connected
to a corresponding external electrode of the pair of external electrodes;

a pair of second electrodes disposed on the third and fourth side face sides of the second principal face; and
a pair of connection electrodes disposed on the first principal face and each electrically connected to the first electrode
and the second electrode,

wherein the multilayer body, when viewed from the first direction, includes a first portion covered by the external electrode,
and a pair of second portions located on both sides of the first portion and exposed from the external electrode,

wherein, the pair of second portions of the multilayer body are separated from the interposer, and
wherein a width in the second direction of the pair of external electrodes is smaller than a width in the second direction
of the multilayer body and larger than a width in the second direction of the second portion.

US Pat. No. 9,635,756

CIRCUIT BOARD INCORPORATING SEMICONDUCTOR IC AND MANUFACTURING METHOD THEREOF

TDK CORPORATION, Tokyo (...

1. A circuit board comprising:
a resin substrate including a core section including a core material that is impregnated with a resin and a housing section
filled by the resin, the housing section being separate from the core section and surrounded by the core section so as to
penetrate through the core section; and

a semiconductor integrated circuit (IC) embedded in the resin that fills the housing section,
wherein a thickness of the housing section is less than a thickness of the core section, thereby at least one of one and other
surfaces of the resin substrate has a dented shape in the housing section.

US Pat. No. 9,450,168

MULTILAYER PIEZOELECTRIC DEVICE

TDK CORPORATION, Tokyo (...

1. A multilayer piezoelectric device comprising:
a multilayer body formed from a plurality of piezoelectric layers stacked along a first direction, and having a base, a non-driving
part and first and second driving parts, wherein the non-driving part and first and second driving parts extend in the same
first direction from the base; and

first and second outer electrodes arranged on a surface of the multilayer body while being electrically insulated from each
other;

wherein the first and second driving parts and non-driving part align along a second direction orthogonal to the first direction
such that the first driving part is closer to the non-driving part than is the second driving part;

wherein each of the first and second driving parts has first and second inner electrodes opposing each other in the first
direction through the piezoelectric layer interposed therebetween;

wherein the base has a third inner electrode extending along a plane orthogonal to the first direction;
wherein the first inner electrode is electrically connected to the first outer electrode but electrically insulated from the
second outer electrode;

wherein the second and third inner electrodes are electrically connected to the second outer electrode but electrically insulated
from the first outer electrode;

wherein the second inner electrodes of the first and second driving parts are each adjacent to the third inner electrode in
the first direction and partly overlap the third inner electrode as seen in the first direction; and

wherein a first area where the third inner electrode and the second inner electrode of the first driving part overlap each
other is greater than a second area where the third inner electrode and the second inner electrode of the second driving part
overlap each other as seen in the first direction.

US Pat. No. 9,438,124

POWER SUPPLY CIRCUIT

TDK Corporation, (JP)

1. A power supply circuit, comprising:
a plurality of output terminals that output voltages; and
a transformer that has a plurality of output windings, the plurality of output windings including first and second output
windings that are coupled to each other, wherein

first terminals of the first and second output windings are connected to each other via a capacitor, and each of the first
terminals has a first polarity,

second terminals of the first and second output windings are electrically connected to each other, and each of the second
terminals has a second polarity which is opposite to the first polarity, and

the first and second output windings have the same number of turns between the first and second terminals.

US Pat. No. 9,379,306

PIEZOELECTRIC DEVICE AND METHOD FOR MANUFACTURING SAME

TDK CORPORATION, Tokyo (...

1. A piezoelectric device comprising:
a piezoelectric multilayer body having;
a rectangular flat piezoelectric body having a pair of opposing main faces and a pair of longitudinally opposing side faces;
and

a pair of electrodes, each covering a portion of one of the pair of main faces and a portion of one of the pair of longitudinally
opposing side faces; and

a resin covering four side faces of the piezoelectric multilayer body intergrally while covering dicing surfaces in the respective
side faces.

US Pat. No. 9,299,366

MAGNETIC RECORDING AND REPRODUCING APPARATUS

TDK CORPORATION, Tokyo (...

1. A magnetic recording and reproducing apparatus comprising:
a magnetic recording medium including a recording layer in which at least two magnetic layers are layered on a non-magnetic
substrate; and

a magnetic head including a main magnetic pole for applying a recording magnetic field in a direction substantially perpendicular
to a recording face of the magnetic recording medium and a microwave generating element that generates a microwave magnetic
field,

wherein, relationship between a thickness Ts of a magnetic layer having a lowest magnetic anisotropy energy among the at least
two magnetic layers composing the recording layer of the magnetic recording medium, and a thickness Tt of the recording layer
is Ts/Tt?0.2, and

wherein the microwave generating element has a width broader than a width of the main magnetic pole of the magnetic head,
so that the microwave generating element applies the microwave magnetic field having a width broader than the width of the
recording magnetic field generated by the main magnetic pole of the magnetic head to the magnetic recording medium.

US Pat. No. 9,202,627

ELECTRONIC COMPONENT AND METHOD OF MANUFACTURING ELECTRONIC COMPONENT

TDK CORPORATION, Tokyo (...

1. An electronic component comprising:
an element body having a pair of end faces opposing each other, a pair of main faces opposing each other while extending so
as to connect the pair of end faces to each other, and a pair of side faces opposing each other while extending so as to connect
the pair of main faces to each other;

an outer electrode, formed on one end face of the pair of end faces, for covering a portion of the main and side faces adjacent
to the one end face; and

an insulating layer that covers at least a surface of an electrode portion of the outer electrode located on a side face side
of the outer electrode without covering portions of the main faces that are not covered by the outer electrode,

wherein
the electrode portion has a sintered electrode layer;
the insulating layer is directly formed on the sintered electrode layer and completely covers a surface of the sintered electrode
layer; and

a portion of the sintered electrode layer is not covered with the insulating layer, and a plating layer is directly formed
on the portion of the sintered electrode layer.

US Pat. No. 9,165,569

THERMALLY-ASSISTED MAGNETIC RECORDING HEAD

TDK CORPORATION, Tokyo (...

1. A thermally-assisted magnetic recording head, comprising:
a magnetic pole having an end exposed on an air-bearing surface;
a waveguide;
a plasmon generator having a first region and a second region, the first region extending backward from the air-bearing surface
to a first position, the second region being coupled with the first region at the first position, extending backward from
the first position, and having a width in a track-width direction, and the width in the track-width direction of the second
region being larger than a width in the track-width direction of the first region;

an adhesion layer having an end exposed on the air-bearing surface and a first adhesion region, the first adhesion region
being in close contact with an end face in the track-width direction of the first region; and

a cladding layer located around the plasmon generator and the adhesion layer, wherein
adhesion force between the adhesion layer and the plasmon generator is greater than adhesion force between the cladding layer
and the plasmon generator.

US Pat. No. 9,156,739

DIELECTRIC CERAMIC COMPOSITION AND AN ELECTRONIC DEVICE THEREOF

TDK CORPORATION, Tokyo (...

1. A dielectric ceramic composition comprising:
a main component of a compound having a perovskite crystalline structure expressed by a general formula ABO3, in which “A” is at least one selected from Ba, Ca and Sr and “B” is at least one selected from Ti and Zr, and

sub components, with respect to 100 moles of the compound, of 0.6 moles or more to 1.4 moles or less of Ra oxide in terms
of Ra2O3, in which Ra is at least one selected from a group consisting of Dy, Gd and Tb,

0.2 moles or more to 0.7 moles or less of Rb oxide in terms of Rb2O3, in which Rb is at least one selected from a group consisting of Ho and Y,

0.2 moles or more to 0.7 moles or less of Rc oxide in terms of Rc2O3, in which Rc is at least one selected from a group consisting of Yb and Lu,

0.6 moles or more to 1.6 moles or less of Mg oxide in terms of Mg, and
0.6 moles or more to less than 1.2 moles of Si included compound in terms of Si.

US Pat. No. 9,142,343

COIL COMPONENT

TDK Corporation, Tokyo (...

1. A coil component comprising:
a substrate;
a planar spiral conductor that is formed on a surface of the substrate by electrolytic plating;
a lead conductor that is formed on the surface of the substrate and connected to an outer peripheral end of the planar spiral
conductor;

a dummy lead conductor that is formed on the surface of the substrate and between an outermost turn of the planar spiral conductor
and an end of the substrate, and free from an electrical connection with another conductor at least within the same plane;

an insulating resin layer that is formed on the surface of the substrate to cover the planar spiral conductor, the lead conductor,
and the dummy lead conductor;

a metal magnetic powder-containing resin layer that covers the insulating resin layer;
an external electrode that is formed on the metal powder-containing resin layer; and
a bump electrode that penetrates the insulating resin layer and the metal magnetic power-containing resin layer and is connected
between the lead conductor and the external electrode, wherein

the external electrode has an area greater than that of the bump electrode,
the metal magnetic powder-containing resin layer has a main surface that is substantially parallel to the surface of the substrate
and a side surface that is substantially perpendicular to the main surface, and

the external electrode is selectively formed on the main surface of the metal magnetic powder-containing resin layer so that
the side surface of the metal magnetic powder-containing resin layer is free from the external electrode.

US Pat. No. 9,093,908

BIDIRECTIONAL DC-DC CONVERTER AND METHOD OF CONTROLLING BIDIRECTIONAL DC-DC CONVERTER

TDK Corporation, (JP)

1. A bidirectional DC-DC converter, comprising:
a transformer that has a first winding and a second winding;
a first DC-AC converter that is provided between a first DC voltage line and the first winding;
a second DC-AC converter that is provided between a second DC voltage line and the second winding; and
a controller that performs a switching control operation that bidirectionally transmits DC power between the first DC voltage
line and the second DC voltage line, wherein

when the bidirectional DC-DC converter is in a light load operation state, the controller provides an operation stop period
that periodically stops the switching control operation so as to perform an intermittent switching control operation,

the intermittent switching control operation has the operation stop period and an operation performance period that performs
the switching control operation, and

when the controller performs the intermittent switching control operation, the controller maintains a detection current value
as a first predetermined value and controls an average current value of the detection current value during the intermittent
switching control operation by adjusting a time ratio of the operation stop period and the operation performance period.

US Pat. No. 9,048,491

LITHIUM-ION SECONDARY BATTERY

TDK CORPORATION, Tokyo (...

1. A lithium-ion secondary battery comprising:
a negative electrode including a negative electrode active material layer containing silicon and/or silicon oxide as a main
component; and

a separator,
wherein a value obtained by dividing an average 3% modulus strength of the separator by an average 3% modulus strength of
the negative electrode is 0.079 or less.

US Pat. No. 9,495,983

MAGNETIC HEAD WITH MICROWAVE-GENERATING ELEMENT AND GROUND LINE THEREFOR

TDK CORPORATION, Tokyo (...

1. A magnetic head comprising:
a magnetic head slider including
a write head element that applies a write signal magnetic field to a magnetic recording medium, and
a microwave-generating element that applies a microwave magnetic field to the magnetic recording medium when the write head
element applies the write signal magnetic field; and

a suspension that supports the magnetic head slider and that has a line through which a microwave excitation current is supplied
to the microwave-generating element, the microwave excitation current being an alternating current,

wherein the microwave-generating element is in a nearly short-circuited end condition,
wherein the magnetic head slider further comprises:
a grounded conductive head slider substrate; and
a ground line through which the microwave-generating element is connected to the head slider substrate, and
wherein the head slider substrate consists of AlTiC (Al2O3—TiC).

US Pat. No. 9,252,654

BRIDGELESS POWER FACTOR IMPROVEMENT CONVERTER

TDK Corporation, (JP)

1. A bridgeless power factor improvement converter, comprising:
a pair of input terminals to which an AC voltage is input, the pair of the input terminals including a first input terminal
and a second input terminal;

a pair of output terminals from which an output voltage is output, the pair of the output terminals including a first output
terminal and a second output terminal, the first output terminal having a positive potential relative to the second output
terminal;

a first rectifier having a first current input terminal and a first current output terminal, the first current output terminal
being connected to the first output terminal;

a first switch that is connected between the second output terminal and the first current input terminal;
a second rectifier having a second current input terminal and a second current output terminal, the second current input terminal
being connected to the second output terminal;

a second switch that is connected between the first output terminal and the second current output terminal;
a first coil that is connected between the first input terminal and a first node connected between the first rectifier and
the first switch;

a second coil that is connected between the first input terminal and a second node connected between the second rectifier
and the second switch;

a pair of series rectifiers that are connected in series in a forward direction via a third node and that have a series rectifier
current input terminal and a series rectifier current output terminal, the series rectifier current output terminal being
connected to the first output terminal, the series rectifier current input terminal being connected to the second output terminal,
the third node being connected to the second input terminal;

a capacitor that is connected to at least one of the pair of the series rectifiers in parallel;
a first device that is configured by at least one of a third coil and a resistor and that has a first device terminal and
a second device terminal, the first device terminal being connected to the third node;

a third switch that is connected between the second output terminal and the second device terminal;
a fourth switch that is connected between the first output terminal and the second device terminal;
a third rectifier having a third current input terminal and a third current output terminal, the third current input terminal
being connected to the second output terminal, the third rectifier being connected to the third switch in parallel;

a fourth rectifier having a fourth current input terminal and a fourth current output terminal, the fourth current output
terminal being connected to the first output terminal, the fourth rectifier being connected to the fourth switch in parallel;
and

a control circuit that selectively switches the first through fourth switches according to the AC voltage, wherein
the control circuit switches only the first switch during a positive period in which the first input terminal has the positive
potential relative to the second input terminal,

the control circuit switches only the second switch during a negative period in which the first input terminal has a negative
potential relative to the second input terminal,

the control circuit maintains the third switch in an OFF state and shifts the fourth switch to an ON state during a first
dead time period in which the first and second switches are in a dead time including a first change time from the positive
period to the negative period,

the control circuit shifts the third switch to the ON state and maintains the fourth switch in the OFF state during a second
dead time period in which the first and second switches are in the dead time including a second change time from the negative
period to the positive period, and

the control circuit maintains the third and fourth switches in the OFF state during a period other than the first and second
dead periods.

US Pat. No. 9,242,902

NONLINEAR RESISTOR CERAMIC COMPOSITION AND ELECTRONIC COMPONENT

TDK CORPORATION, Tokyo (...

1. A nonlinear resistor ceramic composition comprising:
a zinc oxide as a main component; and
as subcomponents, with respect to 100 mol of said zinc oxide,
an amount of from more than 0.05 at. % to less than 30 at. % of an oxide of Co in terms of Co;
an amount of from more than 0.05 at. % to less than 20 at. % of an oxide of Sr in terms of Sr;
an amount of from not less than 0.1 at. % and not more than 5 at. % of an oxide of R in terms of R, where R is at least one
element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and

an amount of from 0.05 at. % to 0.5 at. % of an oxide of Si in terms of Si,
wherein the nonlinear resistor ceramic composition does not comprise Al, Ga, and In,
the nonlinear resistor ceramic composition is used for a nonlinear resistor layer of a multilayer chip varistor having at
least one pair of internal electrode layers,

a varistor voltage of the nonlinear resistor ceramic composition is 100V or less, and
the nonlinear resistor ceramic composition is a semiconductor.

US Pat. No. 9,236,171

COIL COMPONENT AND METHOD FOR PRODUCING SAME

TDK Corporation, Tokyo (...

1. A coil component comprising:
at least one insulating substrate having a first main surface, a second main surface opposite to the first main surface, a
first side surface located along a first line, a second side surface located along a second line parallel to the first line,
a third side surface located along a third line perpendicular to the first and second lines, a fourth side surface located
along a fourth line parallel to the third line, a first notch formed at a vertex of the first and third lines, a second notch
formed at a vertex of the second and third lines, a third notch formed at a vertex of the second and fourth lines, and a fourth
notch formed at a vertex of the first and fourth lines;

a spiral conductor formed on at least the first main surface of the insulating substrate;
an upper core covering the first main surface of the insulating substrate;
a lower core covering the second main surface of the insulating substrate; and
first to fifth connecting portions each having pillar shape extending in normal direction of the first and second main surfaces,
each of the first to fifth connecting portions being attached to the upper core at an upper end and being attached to the
lower core at a lower end so as to physically connect the upper and lower cores, the first to fourth connecting portions being
located in the first to fourth notches, respectively, the fifth connecting portion penetrating the insulating substrate, wherein

at least one of the upper and lower cores is formed of a metal-magnetic-powder-containing resin.

US Pat. No. 9,175,942

MAGNETIC SENSOR SYSTEM

TDK CORPORATION, Tokyo (...

1. A magnetic sensor system comprising:
a magnetic field generation unit for generating a magnetic field to be detected; and
a magnetic sensor for detecting the magnetic field,
the magnetic sensor system being selectable between an operating state and a non-operating state, wherein
the magnetic sensor has a magnetic detection element, and generates a detected value having a correspondence relationship
with an angle that a direction of the magnetic field in a reference position forms with respect to a reference direction,

the magnetic detection element includes a magnetic layer whose magnetization direction varies according to the direction of
the magnetic field in the reference position,

when the magnetic sensor system is in the operating state, the direction of the magnetic field in the reference position varies
when viewed from the magnetic sensor,

when the magnetic sensor system is in the non-operating state, the direction of the magnetic field in the reference position
does not vary when viewed from the magnetic sensor and is pinned in firs direction, and consequently the magnetization direction
of the magnetic layer is pinned in the first direction,

the magnetic layer has an induced magnetic anisotropy that is imparted in advance to the magnetic layer, the induced magnetic
anisotropy being oriented to reduce error caused by a posteriori induced magnetic anisotropy resulting from the magnetic field
generation unit, and

an easy axis of magnetization resulting from the induced magnetic anisotropy imparted to the magnetic layer is oriented in
a direction that forms an angle in the range of 0° to 15° with respect to the first direction.

US Pat. No. 9,153,468

LOAD PORT APPARATUS

TDK Corporation, Tokyo (...

1. A load port apparatus, comprising:
a side base serving as part of a wall that partitions a mini-environment;
a door capable of closing an opening portion provided in the side base, the door being configured to hold a lid of a sealed
container for containing an object to be contained, and open and close the lid of the sealed container so that the object
to be contained is insertable into and removable from the sealed container;

a mount base on which the sealed container is placeable, the mount base being capable of bringing the sealed container close
to and apart from the opening portion; and

an outside air supply device capable of introducing, into an internal space of the mount base, a gas in an external space
separated from the mini-environment by the side base.

US Pat. No. 9,153,267

THERMALLY-ASSISTED MAGNETIC RECORDING HEAD, HEAD GIMBALS ASSEMBLY, HEAD ARM ASSEMBLY AND MAGNETIC RECORDING UNIT

TDK CORPORATION, Tokyo (...

1. A thermally-assisted magnetic recording head, comprising:
a waveguide;
a plasmon generator; and
a light-absorbing protrusion layer provided on a leading side of the plasmon generator,
wherein a ratio W1/W2 is within a range from 2/3 to 55/3, where W1 is a width of the light-absorbing protrusion layer in an
air-bearing surface, and W2 is a width of the waveguide in the air-bearing surface.

US Pat. No. 9,110,124

MAGNETIC SENSOR AND MAGNETIC DETECTION APPARATUS

TDK CORPORATION, Tokyo (...

1. A magnetic sensor comprising:
a channel composed of a semiconductor;
a first insulating film and a metal body arranged opposite to each other with the channel in between;
a ferromagnet provided on the first insulating film;
a first reference electrode connected to the metal body;
a second reference electrode connected to the metal body;
a magnetic shield covering a portion opposed to the ferromagnet in the channel; and
a second insulating film provided between the channel and the magnetic shield,
wherein the magnetic shield has a through hole extending toward said portion opposed to the ferromagnet in the channel.

US Pat. No. 9,105,845

PIEZOELECTRIC CERAMIC COMPRISING AN OXIDE AND PIEZOELECTRIC DEVICE

TDK CORPORATION, Tokyo (...

1. A piezoelectric ceramic comprising a composition represented by the following general formula (1) as the main component,
(K1-x-y-w-vNaxLiyBawSrv)m(Nb1-z-uTaz-Zru)O3  (1)

wherein, x, y, z, w, v, u and m in the formula (1) are satisfying the following conditions respectively, 0.4 0

US Pat. No. 9,413,328

DIPLEXER INCLUDING TWO BANDPASS FILTERS

TDK CORPORATION, Tokyo (...

1. A diplexer comprising:
an input terminal to receive a first signal of a frequency within a first frequency band and a second signal of a frequency
within a second frequency band higher than the first frequency band;

a first output terminal for outputting the first signal;
a second output terminal for outputting the second signal;
a first bandpass filter provided between the input terminal and the first output terminal and selectively passing the first
signal; and

a second bandpass filter provided between the input terminal and the second output terminal and selectively passing the second
signal, wherein

the first bandpass filter includes a plurality of first resonators,
the second bandpass filter is directly connected to the second output terminal and is composed only of a second resonator
and a series resonant circuit, the series resonant circuit connecting the input terminal and the second resonator, and

the series resonant circuit is composed of a capacitor provided between the input terminal and the second resonator, and an
inductance component of a line that connects the input terminal and the second resonator via the capacitor.

US Pat. No. 9,391,371

ANTENNA DEVICE AND WIRELESS COMMUNICATION DEVICE USING THE SAME

TDK CORPORATION, Tokyo (...

1. An antenna device comprising:
a printed circuit board; and
a capacitance coupling element mounted on the printed circuit board, wherein
the capacitance coupling element includes:
a substrate that is made of dielectric material; and
first and second capacitors that are provided in the substrate,
the printed circuit board includes:
a ground clearance region that is defined on one principal surface of the printed circuit board, the capacitance coupling
element being mounted on the ground clearance region;

a main circuit region that has a ground pattern;
first to third strip patterns that are provided in the ground clearance region; and
first and second feeding lines that are elongated from the main circuit region to the ground clearance region,
the first strip pattern has one end connected to one end terminal of the first capacitor of the capacitance coupling element
and the other end connected to the first feeding line, the first strip pattern extending in a first direction from the one
end thereof to the other end thereof,

the second strip pattern has one end connected to one end terminal of the second capacitor of the capacitance coupling element
and the other end connected to the second feeding line, the second strip pattern extending in a second direction, that is
an opposite to the first direction, from the one end thereof to the other end thereof,

the third strip pattern has one end connected to both the other end terminals of the first and second capacitors of the capacitance
coupling element and the other end connected to the ground pattern, the third strip pattern extending in a third direction,
that crosses the first and second directions, from the one end thereof to the other end thereof,

the capacitance coupling element is disposed with an offset toward the first direction from a central portion of the ground
clearance region in a direction parallel to the first and second directions, and

the first strip pattern is shorter in length than the second strip pattern.

US Pat. No. 9,230,586

METHOD OF SETTING FLYING HEIGHT AND FLYING HEIGHT SETTING DEVICE

TDK Corporation, Tokyo (...

1. A method for setting a flying height of a thermally-assisted magnetic recording head relative to a magnetic recording medium
in a thermally-assisted magnetic recording device, including
the magnetic recording medium,
the thermally-assisted magnetic recording head, and
a positioning device that supports the thermally-assisted magnetic recording head, and that positions the thermally-assisted
magnetic recording head relative to the magnetic recording medium, wherein

the thermally-assisted magnetic recording head includes:
a magnetic pole that generates a writing magnetic field from an end surface that forms a portion of a medium opposed surface
facing the magnetic recording medium,

a waveguide where light for exciting surface plasmon propagates,
a plasmon-generator that generates near-field light from a near-field light generating portion on a near-field light generating
end surface that forms a portion of the medium opposed surface by coupling with the light in a surface plasmon mode,

a light source part that irradiates the waveguide with light by applying a predetermined drive current, and
a heater part that heats the vicinity of the medium opposed surface in order to protrude the medium opposed surface toward
the magnetic recording medium side, wherein the setting method comprising the steps of:

determining a tentative optimum drive current that is supplied to the light source part, and setting 1st to nth drive currents
for flying height setting (n being an integer of 2 or more) where values of the drive currents are smaller than the tentative
optimum drive current, and increase sequentially;

supplying heater power to the heater part while supplying the 1st to nth drive currents for flying height setting to the light
source part to protrude the medium opposed surface of the thermally-assisted magnetic recording head toward the magnetic recording
medium side, and detecting touch down of the thermally-assisted magnetic recording head;

storing the heater power that is supplied to the heater part when the touch down of the thermally-assisted magnetic recording
head is detected, as touch down power;

calculating a correlation between the 1st to nth drive currents for flying height setting and the touch down power;
determining a tentative optimum heater power to be supplied to the heater part when the tentative optimum drive current is
supplied to the light source part so as to set the flying height to be a target flying height,

supplying the tentative optimum drive current to the light source part, supplying the tentative heater power to the heater
part, and recording a reference signal to the magnetic recording medium; and

determining whether or not the reference signal is recorded with a desired signal intensity, wherein
when it is determined that the reference signal is not recorded with the desired signal intensity, while current values of
the tentative optimum drive current and the 1st to nth drive currents for flying height setting are changed to greater current
values, a series of steps from the step of storing the heater power that is supplied to the heater part when the touch down
of the thermally-assisted magnetic recording head is detected, as touch down power, to the step of determining whether or
not the reference signal is recorded with desired signal intensity, are repeated until the reference signal is recorded with
the desired signal intensity, and

when it is determined that the reference signal is recorded with the desired signal intensity, tentative optimum drive current
at that time and tentative heater power determined based on the correlation are determined as the optimum drive current to
be supplied to the light source part and the optimum heater power to be supplied to the heater part, respectively.

US Pat. No. 9,214,270

ELECTRONIC COMPONENT AND MANUFACTURING METHOD THEREOF

TDK CORPORATION, Tokyo (...

1. An electronic component comprising:
a base insulating layer;
a first conductor layer formed on a top surface of the base insulating layer and including a first conductor pattern;
a first insulating layer covering the first conductor layer, the first insulating layer having a first opening passing therethrough
to expose top and side surfaces of the first conductor pattern; and

a second conductor layer formed on the first insulating layer and including a second conductor pattern in contact with the
top and side surfaces of the first conductor pattern, wherein

the first opening surrounds a first opening region in a planar view, the first opening region including a first region where
the first conductor pattern exists and a second region where the first conductor pattern does not exist,

the top surface of the base insulting layer within at least the first opening region is flat, and
the second conductor pattern is embedded in both the first and second regions of the first opening region and in contact with
the base insulating layer.

US Pat. No. 9,185,785

ELECTROSTATIC PROTECTION COMPONENT

TDK CORPORATION, Tokyo (...

1. An electrostatic protection component comprising:
a body in which a plurality of ceramic substrates is laminated along a thickness direction which is perpendicular to a surface
of one of the plurality of ceramic substrates; and

a first discharge electrode and a second discharge electrode which are formed within the body and which are spaced to face
each other,

wherein the first discharge electrode includes a first main body portion extending along a first direction which is perpendicular
to the thickness direction, the first main body portion includes a first tip in the first direction and a first side edge
extending along the first direction,

the second discharge electrode includes a second main body portion extending along the first direction, the second main body
portion includes a second tip in the first direction and a second side edge extending along the first direction,

the first discharge electrode and the second discharge electrode are arranged such that the first main body portion and the
second main body portion are adjacent to each other in a second direction perpendicular to the thickness direction and the
first direction,

the first discharge electrode and the second discharge electrode face each other in the second direction between the first
side edge and the second side edge and

discharge occurs only between the first side edge and the second side edge, between the first discharge electrode and the
second discharge electrode.

US Pat. No. 9,123,880

LAMINATED PIEZOELECTRIC ACTUATOR

TDK CORPORATION, Tokyo (...

1. A laminated piezoelectric actuator, comprising:
a device body in which a number of piezoelectric layers, first internal electrodes and second internal electrodes having different
polarities from the first internal electrodes are laminated;

a first external electrode electrically connected to the first internal electrodes and formed on the surface of the device
body;

a second external electrode electrically connected to the second internal electrodes and formed on the surface of the device
body;

an insulation layer covering at least a portion of the external surface of the stack wherein both the first internal electrodes
and the second internal electrodes are exposed on the surface of the device body, where mechanical displacement is generated
by applying voltage; and

a resistance layer separately formed from the instulation layer to electrically connect the first external electrode and the
second external electrode, wherein the resistance layer has a lower electric resistance value than the insulation layer and
covers at least a portion of at least one of the first external electrodes and the second external electrodes.

US Pat. No. 9,112,135

PIEZOELECTRIC ELEMENT AND METHOD FOR MANUFACTURING PIEZOELECTRIC ELEMENT

TDK CORPORATION, Tokyo (...

1. A piezoelectric element comprising:
an element body which has a pair of principal faces opposed to each other, and four end faces extending in a direction in
which the pair of principal faces are opposed to each other, so as to connect the pair of principal faces, the element body
is comprised of a piezoelectric ceramic material, the element body has a rectangular parallelepiped shape;

a pair of electrodes arranged respectively on the pair of principal faces, the respective electrodes each having a rectangular
shape in a plan view, the respective electrodes each having four sides; and

a resin covering an entire area of the four end faces and arranged so as to make contact with each of the four sides of each
of the pair of electrodes,

wherein the resin has two edges in said direction projecting outward in said direction from the respective electrodes.

US Pat. No. 9,099,643

METHOD OF ETCHING A MAGNESIUM OXIDE FILM

TDK CORPORATION, Tokyo (...

1. A method of manufacturing a magnetoresistive device, the magnetoresistive device including: a first electrode and a second
electrode located at a distance from each other; a magnetoresistive element including a metal layer and disposed between the
first electrode and the second electrode; and an insulating portion in contact with the magnetoresistive element, wherein
the magnetoresistive element has a first surface in contact with the first electrode, a second surface in contact with the
second electrode, and a third surface connecting the first and second surfaces to each other,

the metal layer includes the second surface, and
the insulating portion is made of magnesium oxide,
the method comprising the steps of:
forming the first electrode;
forming a magnetoresistive film on the first electrode, the magnetoresistive film becoming the magnetoresistive element later
and having a top surface including a pre-second-surface-portion that later becomes the second surface;

patterning the magnetoresistive film so that the magnetoresistive film is provided with at least part of the third surface;
forming the insulating portion from magnesium oxide such that the insulating portion is in contact with the at least part
of the third surface;

removing an unwanted magnesium oxide film that has been formed on the pre-second-surface portion by the magnesium oxide in
the step of forming the insulating portion; and

forming the second electrode after the step of removing the unwanted magnesium oxide film, wherein
in the step of removing the unwanted magnesium oxide film, the unwanted magnesium oxide film is wet etched by using an etchant
containing an aqueous ammonia solution.

US Pat. No. 9,077,059

THIN FILM BALUN

TDK CORPORATION, Tokyo (...

1. A thin film balun comprising:
an unbalanced transmission line; and
a balanced transmission line positioned facing the unbalanced transmission line and magnetically coupled to the unbalanced
transmission line, wherein:

one end of the unbalanced transmission line is connected to an unbalanced terminal, and an other end of the unbalanced transmission
line is connected to a ground terminal via a C component, and

the C component is formed by a first electrode and a second electrode, the first electrode being formed in a first layer that
includes the unbalanced transmission line, and the second electrode being formed in a second layer that faces the first layer
and includes the balanced transmission line.

US Pat. No. 9,071,005

TERMINAL BLOCK AND ELECTRONIC DEVICE COMPRISING SAME

TDK CORPORATION, Tokyo (...

1. A terminal block comprising:
a terminal member of which one end side is equipped with a first terminal having an opening and the other end side different
from the one end side is equipped with a second terminal;

a connection member that includes a flange extending outward from about a center of a main body and is inserted from the side
of the second terminal into the opening of the first terminal of the terminal member so that the flange is fixed while contacting
the first terminal; and

a resinous portion that covers the peripheries of the terminal member and the connection member while at least one of the
first terminal and the connection member is exposed at the side of the first terminal and the second terminal is exposed at
the side of the second terminal,

wherein the resinous portion includes a cylindrical side wall that is formed at the end of the side of the second terminal
so as to extend toward the side of the second terminal in the extension direction of the terminal member and to surround the
terminal member and a partition wall that divides an area surrounded by the side wall into a first area and a second area,

wherein the terminal member protrudes from a bottom surface of the first area, and
wherein a bottom surface of the second area is provided with a through-hole communicating with an end surface the side of
the second terminal of the connection member.

US Pat. No. 9,455,080

REACTOR

TDK CORPORATION, Tokyo (...

1. A reactor comprising:
a pair of yoke portion cores composed of ferrite;
a winding portion core spanning the yoke portion cores, the winding portion core being composed of soft magnetic metal and
having a substantially constant cross sectional area;

a coil winding around the winding portion core; and
junction portion cores composed of soft magnetic metal powder and having a tabular shape disposed at spaces where the winding
portion core faces the yoke portion cores,

an area of a part where each of the junction portion cores faces each of the yoke portion cores is 1.3 to 4.0 times the cross
sectional area of the winding portion core.

US Pat. No. 9,305,708

MULTILAYER CERAMIC ELECTRONIC DEVICE

TDK CORPORATION, Tokyo (...

1. A multilayer ceramic electronic device comprising a lamination in which an internal electrode layer and a dielectric layer
are laminated alternatively, wherein
the dielectric layer is comprised of a dielectric ceramic composition including a main component represented by a general
formula of ABO3 (A is at least one selected from Ba, Sr and Ca, and B is at least one selected from Ti, Zr and Hf) and a rare-earth component
R (R is at least one selected from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu),

R segregation phases including the rare-earth component R are present in the dielectric layer, and
when the dielectric layer is separated to six areas by dividing the dielectric layer sandwiched by a pair of the internal
dielectric layers in the thickness direction, there are the R segregation phases present in two neighboring areas respectively
adjacent to the pair of the internal electrode layers in the dielectric layer at a ratio of double or more compared with the
R segregation phases present in two central areas located at a substantially center in the dielectric layer.

US Pat. No. 9,297,635

MAGNETIC SENSOR SYSTEM INCLUDING TWO DETECTION CIRCUITS

TDK CORPORATION, Tokyo (...

1. A magnetic sensor system comprising a scale and a magnetic sensor that are arranged in a relative positional relationship
variable in a first direction, the magnetic sensor system being configured to detect a physical quantity associated with the
relative positional relationship between the scale and the magnetic sensor, wherein
the magnetic sensor includes a first detection circuit disposed at a first position and a second detection circuit disposed
at a second position,

the first detection circuit outputs a first detection signal that varies depending on a first magnetic field applied to the
first detection circuit,

the second detection circuit outputs a second detection signal that varies depending on a second magnetic field applied to
the second detection circuit,

each of the first and second detection circuits includes a plurality of magnetoresistive elements connected in series,
each of the plurality of magnetoresistive elements includes: a magnetization pinned layer having a magnetization in a pinned
direction; a free layer having a magnetization that varies depending on an applied magnetic field; and a tunnel barrier layer
interposed between the magnetization pinned layer and the free layer,

each of the first and second magnetic fields changes its direction periodically in response to a change in the relative positional
relationship between the scale and the magnetic sensor, and

the first position and the second position differ from each other by 1.25% of one pitch or less, where one pitch is an amount
of a change in the relative positional relationship between the scale and the magnetic sensor that changes the direction of
each of the first and second magnetic fields by one period,

the magnetic sensor system further comprising a computing unit, the computing unit being configured to generate an abnormal-event
determination signal by computation using the first detection signal and the second detection signal, and to determine whether
the magnetic sensor is normal or has an abnormal event by monitoring whether the abnormal-event determination signal falls
within a predetermined range specified by an upper limit and a lower limit, the upper limit and the lower limit being established
to determine the presence of an abnormal event in the first or second detection circuit caused by a short circuit between
the magnetization pinned layer and the free layer in one of the plurality of magnetoresistive elements included in the first
or second detection circuit, and to thereby allow for determination of an abnormal event in the magnetic sensor.

US Pat. No. 9,257,402

TERMINAL STRUCTURE, AND SEMICONDUCTOR ELEMENT AND MODULE SUBSTRATE COMPRISING THE SAME

TDK CORPORATION, Tokyo (...

1. A terminal structure comprising:
a base material;
an electrode formed on the base material;
an insulating covering layer formed on the base material and on the electrode and having an opening exposing at least part
of the electrode;

an electroless plated under bump metal layer containing Ni, formed in a region in the opening on the electrode so that an
upper surface of the metal layer is at a position lower than an upper surface of the insulating covering layer in a peripheral
edge portion of the opening; and

a dome-shaped bump containing Sn and Ti, formed in a region in the opening on the under bump metal layer, wherein
an end portion of a boundary between the under bump metal layer and the bump is in contact with an inner wall of the opening
portion in the insulating covering layer, and

the terminal structure has an excellent bump strength property where the rupture position under shear load inn a direction
lateral to the height of the bump occurs in the bump and not at interfaces between the under bump metal layer and other components.

US Pat. No. 9,252,716

HIGH-FREQUENCY AMPLIFIER CIRCUIT, SEMICONDUCTOR DEVICE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE

TDK CORPORATION, Tokyo (...

1. A high-frequency amplifier circuit comprising:
a balanced-unbalanced converter converting a single-ended signal into differential signals, wherein
an output of a first amplifier amplifying the single-ended signal is connected to a signal terminal on an unbalanced side
of the balanced-unbalanced converter,

an input of a second amplifier amplifying one of the differential signals is connected to one signal terminal on a balanced
side of the balanced-unbalanced converter,

an input of a third amplifier amplifying another of the differential signals is connected to another signal terminal on the
balanced side of the balanced-unbalanced converter, and

an impedance element is inserted between an element on the balanced side of the balanced-unbalanced converter and a ground,
wherein the impedance element includes at least on resistive element; and
wherein the impedance element includes a plurality of resistive elements connected in series and, to a front and a back of
at least one of the plurality of resistive elements, a wiring line short-circuiting the at least one resistive element or
a wiring line including an opening is connected.

US Pat. No. 9,246,193

ALL-SOLID-STATE LITHIUM-ION SECONDARY BATTERY AND PRODUCTION METHOD THEREOF

TDK CORPORATION, Tokyo (...

1. An all-solid-state lithium-ion secondary battery comprising:
an anode;
a cathode;
a solid electrolyte layer disposed between the anode and the cathode; and
at least one of a first intermediate layer disposed between the anode and the solid electrolyte layer, and a second intermediate
layer disposed between the cathode and the solid electrolyte layer,

wherein:
at least one of a particle size of the first intermediate layer and a particle size of the second intermediate layer is smaller
than those of the anode, the cathode, and the solid electrolyte layer,

the anode contains a composite material,
the composite material comprises a porous carbon material and at least one material selected from the group consisting of
a metal, an alloy of a metal, and an oxide of a metal,

the at least one material is supported in a pore of the porous carbon material, and
the first and second intermediate layers have a thickness of 0.01 to 10 ?m.

US Pat. No. 9,180,517

POWDER MAGNETIC CORE

TDK CORPORATION, Tokyo (...

1. A powder magnetic core comprising at least a composite magnetic particle, the composite magnetic particle comprising:
a core particle containing iron as a main component; and
an insulating passivation layer formed on the core particle, wherein:
the insulating passivation layer has an inner layer formed on the core particle and an outermost layer formed on the inner
layer;

the outermost layer contains iron oxide as a main component;
the inner layer and the outermost layer contain iron oxide and at least one kind of an oxide of nonferrous metal;
the inner layer contains more nonferrous metal than the outermost layer;
Fe is present in the outermost layer in an amount of 50 at. % or more;
the nonferrous metal includes at least one kind selected from the group consisting of aluminum, zirconium, silicon, titanium,
chromium, manganese, sodium, lithium, zinc, barium and cesium; and

a content of the nonferrous metal in the inner layer is from 5 to 80 at. %.

US Pat. No. 9,449,749

SIGNAL HANDLING APPARATUS FOR RADIO FREQUENCY CIRCUITS

TDK Corporation, Tokyo (...

1. An apparatus comprising:
a first impedance transformer, for receiving an input signal, and matching an input impedance of the apparatus to an internal
apparatus impedance;

a splitter, for splitting an output of the first impedance transformer into N split signals;
a plurality of signal processing circuits, for processing the N split signals, wherein at least one of the plurality of signal
processing circuits includes a duplexer, the duplexer includes a high band filter circuit and a low band filter circuit, wherein
at least one of the high band filter circuit and the low band filter circuit includes a resonator, the resonator including
at least one vector inductor;

a combiner, for combining the N split signals into a combined signal; and
a second impedance transformer, for receiving the combined signal, and for matching the internal apparatus impedance to an
output impedance of the apparatus.

US Pat. No. 9,431,174

MULTILAYER CAPACITOR

TDK CORPORATION, Tokyo (...

1. A multilayer capacitor comprising:
an element body having a substantially rectangular parallelepiped shape whose length in a longitudinal direction and length
in a width direction are larger than a length in a height direction, and having first and second principal faces opposed to
each other in the height direction, first and second side faces extending in the height direction so as to connect the first
and second principal faces and opposed to each other in the width direction, and third and fourth side faces extending in
the height direction so as to connect the first and second principal faces and opposed to each other in the longitudinal direction;

a plurality of internal electrodes which are alternately arranged in the element body so as to be opposed to each other in
height direction of the element body and each of which has a main electrode portion opposed to another main electrode portion
in the height direction of the element body and a leading portion extending from the main electrode portion to be exposed
in the first side face; and

a plurality of terminal electrodes each of which has a first electrode portion arranged on the first principal face, and a
second electrode portion arranged on the first side face and connected to the leading portion of each corresponding internal
electrode out of the plurality of internal electrodes,

wherein the second electrode portion is arranged nearer to a center in the longitudinal direction of the element body than
the first electrode portion is.

US Pat. No. 9,412,995

ELECTRODE AND ELECTROCHEMICAL DEVICE

TDK CORPORATION, Tokyo (...

1. An electrode comprising:
a current collector;
an endothermic material layer consisting of an endothermic material provided directly on the current collector; and
an active material layer provided on the endothermic material layer such that the endothermic material layer is positioned
between the active material layer and the current collector,

wherein:
the endothermic material absorbs heat by dehydration decomposition; and
the endothermic material is a metal hydroxide.

US Pat. No. 9,385,425

ANTENNA DEVICE

TDK CORPORATION, Tokyo (...

1. An antenna device, provided with:
a substrate having a ground area, and a first conductor, a second conductor and a third conductor,
one end of the second conductor being connected to the ground area via a first feedpoint and the other end of the second conductor
being connected to the first conductor,

a second feedpoint disposed at a position along the third conductor, the second feedpoint not being directly connected to
the ground area, at least part of the third conductor is disposed opposite to the first conductor, and both ends of the third
conductor are directly connected to the ground area, wherein

the first conductor and the ground area respectively have a shape that is plane symmetrical with respect to a selected imaginary
plane vertical to the primary plane of the substrate, and the connecting point of the first conductor and the second conductor
is disposed on the imaginary plane,

two end portions of the third conductor are positioned so as to clamp the imaginary plane,
the third conductor has a shape that is substantially plane symmetrical with respect to the imaginary plane,
the second feedpoint is disposed on the imaginary plane, and
the ground area has a notched portion crossing the intersection line of the ground area and the imaginary plane, and the third
conductor is disposed crossing the notched portion.

US Pat. No. 9,166,223

NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY AND LITHIUM-ION SECONDARY BATTERY

TDK CORPORATION, Tokyo (...

1. A negative electrode for lithium-ion secondary battery, comprising:
a negative electrode current collector having a tensile strength and a thickness, the tensile strength of the negative electrode
current collector being 237 N/mm2 or more and 441 N/mm2 or less; and

a negative electrode active material layer formed on the negative electrode current collector,
the negative electrode having a tensile strength and a thickness;
the negative electrode active material layer containing (1) silicon and silicon oxide as main components and (2) a binder
and a conductive auxiliary agent;

a product of the tensile strength and thickness of the negative electrode being 3.8 to 9.0 N/mm; and
a value obtained by dividing the product of the tensile strength and the thickness of the negative electrode by a product
of the tensile strength and thickness of the negative electrode current collector being 1.06 to 1.29.

US Pat. No. 9,385,411

DIRECTIONAL COUPLER

TDK CORPORATION, Tokyo (...

1. A directional coupler comprising:
an input port;
an output port;
a coupling port;
a terminal port;
a main line connecting the input port and the output port; and
a subline connecting the coupling port and the terminal port, wherein
the subline includes a first coupling line section and a low-pass filter, the first coupling line section being configured
to be electromagnetically coupled to the main line,

the first coupling line section has a first end and a second end opposite to each other,
the first end is connected to the terminal port,
the low-pass filter includes a first path provided between the coupling port and the second end of the first coupling line
section, and a second path connected to the first path,

the first path has a third end and a fourth end opposite to each other, the third end being connected to the second end of
the first coupling line section, the first path including at least one inductor provided between the third end and the fourth
end, and

the second path includes a first capacitor and a resistor, the first capacitor having two ends, one of the two ends being
connected to the fourth end of the first path, the resistor connecting the other of the two ends of the first capacitor to
a ground.

US Pat. No. 9,349,526

PULSE TRANSFORMER

TDK CORPORATION, Tokyo (...

1. A pulse transformer, comprising:
a drum core having a winding core, a first flange provided at one end of the winding core in a first direction, and a second
flange provided at the other end of the winding core in the first direction;

a first terminal electrode, a second terminal electrode, and a second center tap which are provided on a bottom surface of
the first flange and arranged in a second direction perpendicular to the first direction;

a third terminal electrode, a fourth terminal electrode, and a first center tap which are provided on a bottom surface of
the second flange and arranged in the second direction;

a first wire wound around the winding core and having one end connected to the first terminal electrode and the other end
connected to the first center tap;

a second wire wound around the winding core and having one end connected to the first center tap and the other end connected
to the second terminal electrode;

a third wire wound around the winding core and having one end connected to the fourth terminal electrode and the other end
connected to the second center tap; and

a fourth wire wound around the winding core and having one end connected to the second center tap and the other end connected
to the third terminal electrode, wherein

a front end of the second terminal electrode positioned near an inner side surface of the first flange is set back toward
an outer side surface of the first flange,

a front end of the fourth terminal electrode positioned near an inner side surface of the second flange is set back toward
an outer side surface of the second flange,

a lead section of the second wire crosses at least one lead section of the first, third and fourth wires on the bottom surface
of the first flange at a first cross point,

a lead section of the third wire crosses at least one lead section of the first, second and fourth wires on the bottom surface
of the second flange at a second cross point,

the first cross point is positioned closer to the outer side surface of the first flange than a front end of the first terminal
electrode and the second center tap, and

the second cross point is positioned closer to the outer side surface of the second flange than a front end of the third terminal
electrode and the first center tap.

US Pat. No. 9,245,810

ELECTRICAL AND OPTO-ELECTRICAL CHARACTERIZATION OF LARGE-AREA SEMICONDUCTOR DEVICES

UNIVERSITE DU LUXEMBOURG,...

1. An electrical and/or opto-electrical characterization method for testing and manufacturing large-area semiconductor devices
in production, the method comprising the steps of:
providing a first electrode and placing it into electrical contact with a contact area of a conducting layer of a semiconductor
device;

providing a movable electrode assembly, comprising a container holding an electrolyte solution and at least a second electrode,
immersing the second electrode into the electrolyte solution,

positioning the electrode assembly such that the electrolyte solution places the second electrode into electrical contact
with a top surface of the semiconductor device, the top surface of the semiconductor device comprised of a conductive semiconductor
material; and,

scanning the movable electrode assembly relative to the top surface of the semiconductor device while performing electrical
measurements.

US Pat. No. 9,230,718

CHIP THERMISTOR

TDK CORPORATION, Tokyo (...

1. A chip thermistor comprising:
a thermistor element body having a pair of end faces opposing each other and a main face connecting the end faces to each
other; and

a pair of outer electrodes arranged respectively on the pair of end faces,
wherein each of the pair of outer electrodes is formed into a truncated quadrangular pyramid and has a width in a direction
intersecting the opposing direction of the pair of end faces made narrower with distance from the thermistor element body;

wherein each of the pair of outer electrodes has a foundation electrode layer arranged on a respective one of the end faces
and a plating film covering the foundation electrode layer; and

wherein each foundation electrode layer is formed into a truncated quadrangular pyramid and has a width in the direction intersecting
the opposing direction not greater than that of the respective one of the end faces and made narrower with distance from the
thermistor element body.

US Pat. No. 9,224,706

TERMINAL STRUCTURE, AND SEMICONDUCTOR ELEMENT AND MODULE SUBSTRATE COMPRISING THE SAME

TDK CORPORATION, Tokyo (...

1. A terminal structure comprising:
a base material;
an electrode formed on the base material;
an insulating covering layer formed on the base material and on the electrode and having an opening exposing at least part
of the electrode;

an electroless plated under bump metal layer containing Ni, formed in a region in the opening on the electrode so that an
upper surface of the metal layer is at a position lower than an upper surface of the insulating covering layer in a peripheral
edge portion of the opening; and

a dome-shaped bump containing Sn and Ti, formed in a region in the opening on the under bump metal layer, wherein
an end portion of a boundary between the under bump metal layer and the bump is in contact with an inner wall of the opening
portion in the insulating covering layer, and

the terminal structure has an excellent bump strength property where the rupture position under shear load inn a direction
lateral to the height of the bump occurs in the bump and not at interfaces between the under bump metal layer and other components.

US Pat. No. 9,142,340

CHIP VARISTOR

TDK CORPORATION, Tokyo (...

1. A chip varistor comprising:
an element body having a first face and a second face opposed to each other;
a first conductor arranged in the element body so as to have one end exposed in the first face and the other end located in
the element body;

a second conductor arranged in the element body so as to have one end exposed in the second face and the other end located
in the element body and so as to be separated from the first conductor;

a first terminal electrode arranged on the first face side of the element body and connected to the first conductor; and
a second terminal electrode arranged on the second face side of the element body and connected to the second conductor,
wherein the element body has a first element body section having the nonlinear voltage-current characteristics, and a second
element body section in which an electric current is more likely to flow than in the first element body section,

wherein the first element body section is located at least in part between the first conductor and the second conductor, in
a direction in which the first conductor and the second conductor are separated from each other, and

wherein the other end of the first conductor and the other end of the second conductor are located in the second element body
section.

US Pat. No. 9,140,875

LENS DRIVE DEVICE

TDK CORPORATION, Tokyo (...

1. A lens drive device comprising:
a base;
a lens holder arranged on the base;
a piezoelectric actuator imparting a drive force to the lens holder; and
a pressing piece that provides the piezoelectric actuator with a force to press the piezoelectric actuator against the lens
holder;

wherein the lens holder has:
a barrel holding a lens;
a projection projecting from an outer peripheral surface of the barrel in a direction intersecting an optical axis direction
of the lens;

a support supporting the barrel on the base, the support being located on the opposite side of the barrel from the projection
while being separated from the barrel and disposed upright on the base; and

a joint joining the projection and the support to each other;
wherein one end side of the joint is bendable with respect to the projection so as to allow the barrel to move in the optical
axis direction through the projection;

wherein the other end side of the joint is bendable with respect to the support so as to allow the joint to move in the optical
axis direction;

wherein the piezoelectric actuator is arranged at a position opposing a region on the opposite side of the outer peripheral
surface of the barrel from the projection and has a plurality of frictional parts separated from each other in the optical
axis direction;

wherein the pressing piece is located on the opposite side of the piezoelectric actuator from the barrel and is integrally
disposed upright on the base; and

wherein a leading end part of the pressing piece is a free end that presses the piezoelectric actuator against the barrel
from the side of the support toward the side of the projection so as to keep a state that at least one of the plurality of
frictional parts is in contact with the region.

US Pat. No. 9,967,994

INSULATOR FOR MAGNETIC CORE AROUND A BUS BAR

TDK CORPORATION, Tokyo (...

1. An insulating component constituted by a member having an insulation property, comprising:a first core accommodating section having two parallel core leg section accommodating sections that each individually surrounds one of at least two leg sections of a first magnetic body core of a pair of magnetic body cores which are spaced apart from each other;
a second core accommodating section that surrounds a second magnetic body core of the pair of magnetic cores;
a locking section locked to a bus bar inserted into an aperture section located between the two parallel core leg section accommodating sections; and
wherein each of the two parallel core leg section accommodating sections has a top edge, a bottom surface and a side wall;
the top edges of the two parallel core leg section accommodating sections are in the same plane;
the two bottom surfaces of the two parallel core leg section accommodating sections are in the same plane, and
each of the side walls encompasses one of the at least two leg sections.

US Pat. No. 9,466,987

POWER TRANSMISSION DEVICE AND WIRELESS POWER TRANSMISSION SYSTEM USING THE POWER TRANSMISSION DEVICE

TDK CORPORATION, Tokyo (...

1. A power transmission device that wirelessly transmits alternating current power to a power receiving device, the power
transmission device comprising:
a power conversion circuit that outputs an alternating voltage in order to generate an alternating magnetic field; and
a control circuit used to control a frequency of the alternating voltage, wherein
the control circuit sets, in a predetermined frequency range, the frequency of the alternating voltage to a higher one of
a first frequency at which transmission efficiency is highest and a second frequency at which a voltage generated in the power
receiving device is highest, and performs power transmission.

US Pat. No. 9,362,883

PASSIVE RADIO FREQUENCY SIGNAL HANDLER

TDK Corporation, Tokyo (...

1. A signal handling apparatus comprising:
a first stage including one or more impedance transformers of a first type, for receiving one or more differential input signals
from a signal source, matching an input impedance of the apparatus to an output impedance of the signal source, and combining
the one or more differential input signals as first stage differential outputs;

a second stage including one or more impedance transformers of a second type, for receiving the first stage differential outputs,
combining the first stage differential outputs as a second stage output, and matching an impedance of the second stage output
to an output device; and

wherein the impedance transformers of the first and second stage are each implemented using meandering line conductive traces
disposed on a substrate,

wherein the impedance transformers of the second type are implemented as mirror image, vertically aligned, conductive traces
disposed on opposite sides of a first substrate.

US Pat. No. 9,318,132

MAGNETIC HEAD, MAGNETIC HEAD ASSEMBLY, AND MAGNETIC RECORDING AND REPRODUCING APPARATUS

TDK CORPORATION, Tokyo (...

1. A magnetic head comprising:
a main magnetic pole configured to apply a recording signal magnetic field to a magnetic recording medium; and
first microwave line and second microwave line, through which a microwave alternating current is transferred, the first microwave
line and the second microwave line being made of non-magnetic metal; wherein

the first microwave line is directly connected to the main magnetic pole at a first connection position, the second microwave
line is directly connected to the main magnetic pole at a second connection position, and

an entire end surface of the main magnetic pole is positioned closer to an air bearing surface than the first connection position
and the second connection position.

US Pat. No. 9,305,573

THERMALLY ASSISTED RECORDING HEAD UTILIZING LASER LIGHT WITH LIMITED WAVELENGTH RANGE

TDK Corporation, Tokyo (...

1. A thermally assisted magnetic recording head, comprising:
a main core that propagates laser light as propagation light;
a near-field light generator that faces a portion of the main core and extends to an air bearing surface, the near-field light
generator being coupled to propagation light propagating through the core in a surface plasmon mode so as to generate a surface
plasmon, propagating the surface plasmon to an end part facing the air bearing surface, generating near-field light at the
end part so as to irradiate the near-field light to a magnetic recording medium;

a main magnetic pole layer that is provided in the vicinity of the near-field light generator and of which an end part is
positioned on the air bearing surface;

a laser diode that generates laser light of wavelength 890 nm to 1,000 nm and enters the laser light into the main core; and
a photodiode that is provided on a silicon substrate and measures an intensity of the laser light entered from the laser diode
to the main core, wherein

the laser diode generates TE polarization laser light and enters the TE polarization laser light from an incident part of
the main core into the main core,

the main core includes a polarization direction transducer between a part facing the near-field light generator and the incident
part, the polarization direction transducer converting the TE polarization laser light into TM polarization laser light that
is passed as the propagation light.

US Pat. No. 9,283,588

APPLICATION HEAD AND DROPLET APPLYING APPARATUS

TDK CORPORATION, Tokyo (...

1. An application head comprising:
a liquid storage unit storing a liquid and having a predetermined pressure applied inside;
a tip discharge opening discharging a droplet;
a liquid passage from the liquid storage unit to the tip discharge opening;
a storage-side valve inserted into the liquid passage;
a discharge-side valve inserted in the liquid passage on a downstream side relative to the storage-side valve; and
a plunger sliding in a space in communication with an intermediate liquid passage that is a liquid passage between the storage-side
valve and the discharge-side valve and changing volume of a liquid in the intermediate liquid passage, wherein

each of the storage-side valve and the discharge-side valve has a column-shaped part, including a through-hole penetrating
outer circumferential surfaces of the column-shaped part, and is rotatable at least within a predetermined angular range around
a center axis of the column-shaped part, and

each of the through-holes of the storage-side valve and the discharge-side valve communicates with the liquid passage on both
sides at a predetermined rotational position and does not communicate with the liquid passage on both sides at rotational
positions outside the predetermined rotational position.

US Pat. No. 9,200,884

MAGNETIC SENSOR SYSTEM INCLUDING THREE DETECTION CIRCUITS

TDK CORPORATION, Tokyo (...

1. A magnetic sensor system comprising a scale and a magnetic sensor that are arranged in a relative positional relationship
variable in a first direction, the magnetic sensor system being configured to detect a physical quantity associated with the
relative positional relationship between the scale and the magnetic sensor, wherein
the magnetic sensor includes a first detection circuit disposed at a first position, a second detection circuit disposed at
a second position, and a third detection circuit disposed at a third position,

the first detection circuit outputs a first detection signal that varies depending on a first magnetic field applied to the
first detection circuit,

the second detection circuit outputs a second detection signal that varies depending on a second magnetic field applied to
the second detection circuit,

the third detection circuit outputs a third detection signal that varies depending on a third magnetic field applied to the
third detection circuit,

each of the first to third detection circuits includes a magnetoresistive element,
the magnetoresistive element includes: a magnetization pinned layer having a magnetization in a pinned direction; a free layer
having a magnetization that varies depending on an applied magnetic field; and a nonmagnetic layer interposed between the
magnetization pinned layer and the free layer,

each of the first to third magnetic fields changes its direction periodically in response to a change in the relative positional
relationship between the scale and the magnetic sensor,

the relative positional relationship between the scale and the magnetic sensor is changeable by two pitches or more, where
one pitch is an amount of a change in the relative positional relationship between the scale and the magnetic sensor that
changes the direction of each of the first to third magnetic fields by one period,

two of the first to third positions that are the most distant from each other in the first direction are different from each
other by one pitch or less in the first direction,

the first to third detection signals change periodically in response to a change in the relative positional relationship between
the scale and the magnetic sensor, and have mutually different phases,

the magnetic sensor system further comprises a computing unit that generates a first post-computation signal by computation
using at least the first detection signal and the third detection signal and generates a second post-computation signal by
computation using at least the second detection signal and the third detection signal, and

the first post-computation signal and the second post-computation signal change periodically in response to a change in the
relative positional relationship between the scale and the magnetic sensor, and have mutually different phases.

US Pat. No. 9,087,982

MANUFACTURING METHOD FOR PATTERN MULTILAYER BODY AND MASK SET

TDK Corporation, Tokyo (...

1. A method for manufacturing a pattern multilayer body where first to Nth pattern layers (N is an integer of two or greater) are laminated within a pattern formation region on a substrate in respective
order, and where a pattern is formed in the pattern layers, respectively, comprising:
a step of forming a pattern in the first to Nth pattern layers (N is an integer of two or greater) on the substrate, respectively, and of forming first to Nth overlay patterns that are used for measuring a position gap in a direction orthogonal to a lamination direction between/among
patterns of each pattern layer, within the overlay pattern formation region on the substrate;

a step of forming a pattern in an Mth pattern layer (M is an integer between 1 and N), and of forming an Mth overlay pattern within the overlay pattern formation region comprising:

a resist film formation step of forming an Mth photoresist film on the Mth pattern layer and within the overlay pattern formation region,

a first exposure step of exposing the Mth photoresist film via a main mask,

a second exposure step of exposing the exposed Mth photoresist film via an Mth sub mask, and

a resist pattern formation step of developing the Mth photoresist film, and of forming an Mth resist pattern on the Mth pattern layer and within the overlay pattern formation region, respectively, wherein

the main mask comprises:
a pattern light-shielding part that is commonly used for forming a pattern in the first to Nth pattern layers, respectively, and

first to Nth main light-shielding parts for forming the first to Nth overlay patterns, respectively; and

the Mth sub mask comprises:

a light-shielding part to shield an exposure light reaching to an unexposed region(s) on the Mth photoresist film, which has been light-shielded by the pattern light-shielding part,

an opening part where an exposure light reaching to an unexposed region(s) on the Mth photoresist film within the overlay pattern formation region other than the unexposed region(s) on the Mth photoresist film, which has been light-shielded by the Mth main light-shielding part out of the first to Nth main light-shielding parts, is permeable and

a sub light-shielding part that light-shields an exposure light reaching to an unexposed region(s) on the Mth photoresist film, which has been light-shielded by the Mth main light-shielding part.

US Pat. No. 9,088,244

FREQUENCY CONVERTER

TDK CORPORATION, Tokyo (...

1. A frequency converter comprising:
a plurality of mixers each including
a magnetoresistance effect device including a fixed magnetic layer, a free magnetic layer, and a nonmagnetic spacer layer
sandwiched between the fixed magnetic layer and the free magnetic layer, when receiving a first high-frequency signal and
a local second high-frequency signal, the magnetoresistance effect device multiplying the first high-frequency signal and
the local second high-frequency signal by a magnetoresistance effect to generate a multiplication signal, and

a magnetic field applying unit that applies a magnetic field to the free magnetic layer, wherein
a plurality of multiplication signals generated when the first high-frequency signal and the local second high-frequency signals
that differ from one mixer to another are input to the mixers, are added together and are output.

US Pat. No. 9,086,444

MAGNETIC FIELD DETECTION DEVICE AND CURRENT SENSOR

TDK CORPORATION, Tokyo (...

1. A magnetic field detection device comprising:
a magnetic field detection element that detects a magnetic field;
a first magnetic body core extending in a first direction to surround the magnetic field detection element, the first magnetic
body core having a first surface facing the magnetic field detection element, a second surface opposite to the first surface,
a third surface between the first surface and the second surface, and a fourth surface opposite to the third surface;

a second magnetic body core extending in a second direction, perpendicular to the first direction, to surround the first magnetic
body core, the second magnetic body core having a fifth surface facing the first magnetic body core, and a sixth surface opposite
to the fifth surface; and

a first magnetic field source provided between third surface of the first magnetic body core and a part of the fifth surface
of the second magnetic body core, the part of the fifth surface of the second magnetic body core facing the third surface
of the first magnetic body core, wherein

the fourth surface of the first magnetic body core and another part of the fifth surface of the second magnetic body core
magnetically contact each other, the another part of the fifth surface of the second magnetic body core facing the fourth
surface of the first magnetic body core, and

the third surface of the first magnetic body core and the part of the fifth surface of the second magnetic body core are isolated
from each other.

US Pat. No. 9,083,310

LAMINATED STRUCTURAL TYPE BALUN

TDK CORPORATION, Tokyo (...

1. A laminated structural type balun comprising:
a low pass filter that is provided between an unbalanced terminal inputting and outputting unbalanced signals and a first
balanced terminal inputting and outputting balanced signals and includes a first coil and a first capacitor;

a high pass filter that is provided between the unbalanced terminal and a second balanced terminal inputting and outputting
balanced signals and includes a second capacitor and a second coil; and

a laminated body that includes a plurality of layers including a plurality of conductor layers having a conductor pattern
and a plurality of insulating layers being laminated on a surface of a substrate and includes the low pass filter and the
high pass filter, wherein

the laminated body includes a first conductor layer, a dielectric layer formed on a surface of the first conductor layer,
a first insulating layer formed on a surface of the dielectric layer and a second conductor layer formed on a surface of the
first insulating layer,

each of the first capacitor and the second capacitor has a first electrode pattern formed in the first conductor layer and
a second electrode pattern formed in the second conductor layer and facing the first electrode pattern,

the second electrode pattern includes an embedded electrode pattern penetrating through the first insulating layer into the
dielectric layer,

the dielectric layer is interposed between the first electrode pattern and the embedded electrode pattern to electrically
isolate them from each other, and

the first capacitor and the second capacitor are arranged in a different area from the first coil and the second coil when
viewed from a laminated direction of the laminated body.

US Pat. No. 10,085,343

THIN-FILM CAPACITOR AND ELECTRONIC COMPONENT EMBEDDED SUBSTRATE

TDK CORPORATION, Tokyo (...

1. A thin-film capacitor, comprising:a pair of electrode layers composed of a first electrode layer configured to store a positive charge and a second electrode layer configured to store a negative charge; and
a dielectric layer sandwiched between the pair of electrode layers along a lamination direction, wherein:
the first electrode layer includes a first main electrode layer which is in contact with the dielectric layer,
the second electrode layer includes a second main electrode layer and a second subelectrode layer, both of which are formed of different metallic materials,
the second sub-electrode layer is sandwiched between the dielectric layer and the second main electrode layer along the lamination direction,
the second main electrode layer has a melting point lower than both a melting point of the first main electrode layer and a melting point of the second sub-electrode layer, and
the second main electrode layer is thicker than the second sub-electrode layer in the lamination direction; wherein the first electrode layer includes a first sub-electrode layer formed of a metallic material different from the material of the first main electrode layer,
wherein the first sub-electrode layer is disposed on a side opposite to the dielectric layer along the lamination direction, being in contact with the first main electrode layer, and the melting point of the first main electrode layer is higher than a melting point of the first sub-electrode layer; the first main electrode layer is thicker than the first sub-electrode layer in the lamination direction; the first main electrode layer is thicker than the second sub-electrode layer in the lamination direction; and the second main electrode layer is equal in thickness to or thicker than the first subelectrode layer in the lamination direction.

US Pat. No. 9,820,413

POWER SUPPLY DEVICE

TDK CORPORATION, Tokyo (...

1. A power supply device comprising:
a housing that has a base plate, the base plate having a flat portion with a flat surface,
a protrusion section protruding upward from the flat surface of the base plate, at least a portion of an outer upper surface
of the protrusion section being constituted by a flat protrusion surface,

wherein a thermal conductive material having fluidity is provided on the protrusion surface,
a stepped section is formed at a sidewall of a circumferential edge of the protrusion surface at a position lower than the
protrusion surface and higher than the flat surface,

the stepped section has an upper surface that is inclined or horizontal with respect to the base plate as the stepped section
extends away from the sidewall, and the stepped section has a width configured to accommodate overflow of the thermal conductive
material from the protrusion surface and not to accommodate an electronic component,

the base plate has a core placing surface on which a magnetic core is placed, and
the stepped section is formed at the sidewall of the core placing surface side.

US Pat. No. 9,532,461

MANUFACTURING APPARATUS OF ELECTRONIC COMPONENT AND MANUFACTURING METHOD THEREOF

TDK CORPORATION, Tokyo (...

1. A manufacturing apparatus of an electronic component, the apparatus comprising:
a substrate that has a first alignment mark;
a mask for printing an electronic circuit pattern on the substrate, the mask having a second alignment mark; and
a controller that performs alignment of the mask and the substrate based on the first and second alignment marks,
wherein the first alignment mark comprises a plating and has a cross shape,
the second alignment mark includes four parts that surround the first alignment mark from four orientations and has a plurality
of step patterns in two directions corresponding to the cross shape of the first alignment mark,

each of the step patterns has first to third steps arranged in this order from a center towards an exterior of the second
alignment mark so as to increase, in a direction from the center towards the exterior, a space between two parts of the second
alignment mark facing each other,

a length of the first and second steps is one unit length and a length of the third step is two unit lengths,
a smallest distance between the first and second alignment marks is provided at a junction of adjacent legs of the cross shaped
second alignment mark; and

the controller adjusts a relative position of the mask and the substrate based on an amount of overlap between the step patterns
of the second alignment mark and a linear portion of the cross shape of the first alignment mark.

US Pat. No. 9,503,035

HIGH-FREQUENCY AMPLIFIER

TDK CORPORATION, Tokyo (...

1. A high-frequency amplifier comprising:
a divider for distributing an input high-frequency signal;
a plurality of parallel-connected amplifiers for amplifying a high-frequency signal distributed by the divider and outputting
the amplified high-frequency signal;

a combiner for combining high-frequency signals amplified by the amplifiers;
a substrate on which the amplifiers are disposed;
a conductor pattern connected to a ground end of each of the amplifiers; and
a ground electrode,
wherein the conductor pattern has a first conductive portion extending in a direction in which the amplifiers are adjacent
to each other,

wherein a slot is disposed between two conductor patterns connected to corresponding adjacent ones of the amplifiers,
wherein, between the adjacent amplifiers, two vias passing through the substrate are formed so that the slot is sandwiched
between the vias,

wherein one of the two conductor patterns connected to the corresponding adjacent amplifiers is connected to the ground electrode
via one of the two vias, and the other one of the two conductor patterns connected to the corresponding adjacent amplifiers
is connected to the ground electrode via the other one of the two vias, and

wherein a length of the slot is substantially equal to or less than a half-wavelength of a high-frequency signal used.

US Pat. No. 9,401,295

LOAD PORT APPARATUS AND CLAMPING DEVICE TO BE USED FOR THE SAME

TDK Corporation, Tokyo (...

1. A load port apparatus, comprising:
a mount base on which a pod is to be fixed, the pod including a pod main body having an opening formed in one side surface
thereof, and a lid for opening and closing the pod through the opening, the pod being capable of containing an object to be
contained therein, the lid being openable and closable so that the object to be contained is insertable into and removable
from the pod;

a clamping member including
(a) a clamping cylinder;
(b) a rod of which a first end is connected to the clamping cylinder, the rod having a pivot motion, between a retracting
position at which the rod has a first length and a protruding position at which the rod is shortened to a second length that
is less that the first length, about a rotational axis inclined at a predetermined angle relative to a bottom surface of the
pod, and the rod has a further shortening after the pivot motion to move to a clamping position from the protruding position;
and

(c) a clamping arm which is connected to a second end of the rod and includes a clamping portion abuttable against a portion
to be clamped of the pod at the clamping position by the further shortening of the rod; and

a housing depression arranged in a surface of the mount base and having an internal space dimensioned so that when the rod
is at the retracting position the clamping arm is housed in the housing depression and when the rod pivots in the pivot motion
from the retracting position to the protruding position a part of the clamping arm protrudes above the mount base.

US Pat. No. 9,252,666

CHARGING DEVICE

TDK Corporation, (JP)

1. A charging device, comprising:
a power supply device having a constant current voltage drooping overcurrent protection characteristic, the power supply device
including a first positive output terminal and a first negative output terminal, and outputting a first direct current voltage
between the first positive output terminal and the first negative output terminal; and

a DC-DC converter that is connected to the power supply device in series, the DC-DC converter:
having the constant current voltage drooping overcurrent protection characteristic;
including a positive input terminal, a negative input terminal, a second positive output terminal and a second negative output
terminal; and

outputting a second direct current voltage between the second positive output terminal and the second negative output terminal,
wherein

the first positive output terminal is connected to the positive input terminal and the first negative output terminal is connected
to the negative input terminal, and the DC-DC converter outputs the second direct current voltage by receiving the first direct
current voltage as an operation voltage,

the power supply device is connected to the DC-DC converter in series by connecting the first positive output terminal to
the second negative output terminal, and a charging target is connectable between the first negative output terminal and the
second positive output terminal,

the power supply device has a first constant current value when the power supply device is in a voltage drooping state, the
DC-DC converter has a second constant current value when the DC-DC converter is in the voltage drooping state, and the second
constant current value is lower than the first constant current value, and

the DC-DC converter is shifted to an operation state to supply a charging current of the second constant current value to
the charging target when a voltage value of the first direct current voltage reaches one of a maximum output voltage value
and an approximate value of the maximum voltage value.