US Pat. No. 9,620,684

LED LIGHTING APPARATUS AND METHOD FOR MANUFACTURING THE SAME

CITIZEN ELECTRONICS CO., ...

1. An LED lighting apparatus comprising:
an aluminum substrate;
a device mounting region formed on said aluminum substrate, wherein said device mounting region includes an adhesive layer,
a reflective layer, and an enhanced reflectivity layer;

an LED device bonded on said device mounting region;
a roughened surface region formed on said aluminum substrate, wherein said roughened surface region is located other than
a region where said device mounting region is formed;

a printed wiring substrate bonded onto said roughened surface region;
a wire for connecting between said printed wiring substrate and said LED device;
a frame member formed so as to surround said LED device; and
a phosphor resin deposited over a region inside said frame member.

US Pat. No. 9,574,756

LED LAMP

CITIZEN WATCH CO., LTD., ...

1. An LED lamp comprising:
a substrate on which an LED is mounted;
a dome-shaped light transmissive envelope which covers the LED;
a heat sink which includes a body connected to the substrate, a heat sink opening formed in the body, a plurality of heat
sinking fins connected to the body, and a cover that is connected to the plurality of heat sinking fins and that covers the
plurality of heat sinking fins;

a base for connecting to a power supply;
a driving circuit for driving the LED; and
a socket which connects the heat sink to the base and which includes a socket opening and a driving circuit accommodating
portion for accommodating the driving circuit, wherein

an air passage is formed leading from a gap formed between the light transmissive envelope and the cover to the socket opening
by passing between the plurality of heat sinking fins,

the plurality of heat sinking fins and the cover are formed in integral fashion,
the plurality of heat sinking fins are covered by the cover so as not to be exposed outside the cover,
the body includes a socket accommodating portion for accommodating a portion of the socket, and
the heat sink opening is located above an inner surface of the body as seen from the socket, and an outer circumferential
surface of the socket accommodating portion is located above the heat sink opening.

US Pat. No. 9,726,363

LIGHT-EMITTING DEVICE

CITIZEN ELECTRONICS CO., ...

1. A light-emitting device comprising:
a casing comprising an opening;
a magnetic circuit comprising a magnetic gap;
a movable member comprising a coil that is electrically connectable to an alternating current power source and arranged in
the magnetic gap of the magnetic circuit; and

a light source comprising a light-emitting diode and arranged above the movable member,
wherein the light source is positioned to close the opening above the movable member that is arranged in the casing, and
wherein the movable member is able to be activated with a voltage falling in a range of one to five percent of an entire voltage
range that is applicable to the light-emitting device.

US Pat. No. 9,807,844

LED MODULE

CITIZEN WATCH CO., LTD., ...

1. An LED module comprising:
a circuit board;
a first light-emitting circuit which comprises a first LED group emitting light in a first color, and is mounted on the circuit
board;

a second light-emitting circuit which comprises a second LED group emitting light in a second color, a third LED group emitting
light in a third color, a switch element, and a current detection element, and is mounted on the circuit board; and

a first electrode, a second electrode, a third electrode, and a fourth electrode which are formed on the circuit board, whereinthe second light-emitting circuit comprises a first current path through which a current output from the second LED group
is input to one end of the current detection element, and a second current path through which a current output from the third
LED group passes via the switch element and is input to one end of the current detection element,the first electrode and the second electrode are connected to the first light-emitting circuit,the third electrode is connected to the second LED group and the third LED group,the fourth electrode is connected to the other end of the current detection element,a threshold voltage for light emission of the second LED group is set to be larger than a threshold voltage for light emission
of the third LED group, andthe switch element controls a current flowing through the second current path in accordance with a current flowing via the
current detection element.

US Pat. No. 9,806,239

LIGHT EMITTING DEVICE

Citizen Electronics Co., ...

1. A light emitting device comprising:
a substrate;
a light emitting element mounted on the substrate;
a phosphor plate for covering an upper surface of the light emitting element;
a white reflecting resin placed on the substrate to surround side surfaces of the light emitting element and the phosphor
plate; and

a reflecting frame, including a reflecting film formed by plating, a first bonding portion, and a second bonding portion provided
inside of the first bonding portion, and placed on the substrate to surround at least side surfaces of the light emitting
element, the phosphor plate, and the white reflecting resin,

wherein the reflecting frame is directly bonded to the substrate by the first bonding portion in a portion where the white
reflecting resin is not located, and is bonded to an upper surface of the white reflecting resin by the second bonding portion.

US Pat. No. 9,773,954

LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING LIGHT EMITTING DEVICE

Citizen Electronics Co., ...

1. A light emitting device comprising:
a light emitting element including electrodes only on its under face, wherein the electrodes are flip-chip bonded to a substrate;
a phosphor cover attached to the light emitting element so as to cover a top face and a side face of the light emitting element;
and

a reflection frame including a holding side face for contacting a periphery of the phosphor cover only at a position below
the top face of the light emitting element to hold a periphery of the phosphor cover and a tilted face tilting from the holding
side face position of contact to the outside and upward,

wherein the tilted face is spaced from the periphery of the phosphor cover.

US Pat. No. 9,728,684

LIGHT EMITTING APPARATUS WITH RECESSED REFLECTIVE RESIN AND PROTRUDING REFLECTION FRAME

CITIZEN ELECTRONICS CO., ...

1. A light emitting apparatus comprising:
an LED device which is flip-chip mounted on a substrate;
a phosphor layer placed on a light emitting surface of the LED device;
a reflective resin having a recessed portion formed on the upper surface thereof, the reflective resin covering the side surface
of the LED device and the side surface of the phosphor layer;

a reflection frame having a protruded portion formed on the lower surface thereof, the reflection frame being fixed on or
above the phosphor layer and the reflective resin by engaging the protruded portion with the recessed portion of the reflective
resin; and

a diffusing resin layer being layered on the upper surfaces of the phosphor layer and the reflective resin, the diffusing
resin layer having a through-hole at a position corresponding to the recessed portion of the reflective resin,

wherein the protruded portion of the reflection frame passes through the through-hole of the diffusing resin layer and engages
with the recessed portion of the reflective resin.

US Pat. No. 9,599,289

LIGHT SOURCE AND LIGHTING DEVICE INCLUDING THE SAME

CITIZEN ELECTRONICS CO., ...

1. A light source comprising:
an electrode-assembly comprising a first electrode including a projection and a depression, a second electrode including a
projection and a depression, and an insulating layer disposed between the first electrode and the second electrode to configure
the electrode assembly in a shape of a rectangular parallelepiped; and

two or more light-emitting elements, each of the two or more light-emitting elements with a p-electrode and a n-electrode
arranged on the electrode-assembly to straddle the insulating layer of the electrode-assembly, the p-electrode and the n-electrode
of each of the two or more light-emitting elements being electrically disposed on the projection of the first electrode and
on the projection of the second electrode of the electrode-assembly that has the shape of a rectangular parallelepiped,

the projection of the first electrode fitting in the depression of the second electrode on contact with the insulating layer
and the projection of the second electrode fitting in the depression of the first electrode on contact with the insulating
layer to configure the electrode-assembly, and

the two or more light-emitting elements being arranged on two or more surfaces of the electrode-assembly that has the shape
of the rectangular parallelepiped.

US Pat. No. 9,715,054

PLANAR LIGHT UNIT

CITIZEN WATCH CO., LTD., ...

1. A planar light unit comprising:
a light source; and
a light guide plate including an incident surface for receiving light emitted from the light source, an emission surface from
which the light introduced through the incident surface is emitted, an opposing surface disposed so as to oppose the emission
surface, and a side surface disposed along an outer periphery of the emission surface and the opposing surface,

wherein the light guide plate has a circular solid disk shape with a cutaway portion,
the incident surface is formed in the cutaway portion,
the emission surface is disposed in an upper surface of the circular solid disk with the cutaway portion,
wherein the emission surface has a non-rectangular outer shape, and
at least a part of the side surface is formed as a diffusing surface,
wherein the incident surface includes a first incident surface and a second incident surface located beside the first incident
surface,

the light source includes a first light source opposed to the first incident surface and a second light source opposed to
the second incident surface,

the first incident surface includes a first prism having a ridgeline oriented in a thickness direction of the light guide
plate,

the second incident surface includes a second prism having a ridgeline oriented in a thickness direction of the light guide
plate,

the first prism has an asymmetrical horizontal cross-sectional shape parallel to the emission surface, the cross-section including
a first side located on a side of the side surface and a second side located on a side of the second incident surface,

the second prism has an asymmetrical horizontal cross-sectional shape parallel to the emission surface, the cross-section
including a third side located on a side of the first incident surface and a fourth side located on a side of the side surface,

a first average value of angles defined between a first optical axis from the first light source to the first incident surface
and the first side is larger than a second average value of angles defined between the first optical axis and the second side,
and

a fourth average value of angles defined between a second optical axis from the second light source to the second incident
surface and the fourth side is larger than a third average value of angles defined between the second optical axis and the
third side.

US Pat. No. 9,395,692

HAIRSPRING MATERIAL FOR MECHANICAL TIMEPIECE AND HAIRSPRING USING THE SAME

CITIZEN HOLDINGS CO., LTD...

1. A hairspring material for a mechanical timepiece, comprising an alloy which contains 37.5 to 39.5% by mass of Ni, 9.2 to
9.9% by mass of Cr, 0.35 to 0.55% by mass of Ti and 0.6 to 0.9% by mass of Be, based on the total amount of the alloy, and
contains a remainder comprising Fe and unavoidable impurities, said alloy being an alloy containing, as the unavoidable impurities,
C (carbon), Mn in an amount of more than 0% by mass but not more than 0.5% by mass and Al in an amount of more than 0% by
mass but less than 0.03% by mass, the amount of said C (carbon) being limited to not more than 0.03% by mass, wherein Ti and
C are contained as TiC and the size of the TiC is not more than 5 ?m.

US Pat. No. 9,748,208

LIGHT-EMITTING DEVICE

CITIZEN ELECTRONICS CO., ...

1. A light-emitting device comprising:
a substrate;
a plurality of electrode strips arranged parallel to each other on an upper surface of the substrate;
a plurality of light-emitting arrays arranged parallel to each other, the plurality of light-emitting arrays each with a structure
in that a plurality of light-emitting diode elements are arranged in a line between an adjacent pair of the plurality of electrode
strips and electrically connected in parallel to the adjacent pair of the plurality of electrode strips by wires;

the plurality of electrode strips and the plurality of light-emitting arrays being arranged alternately and parallel to each
other; and

at least two electrodes for external electrical connection including a first electrode and a second electrode and provided
separately from each other, the first electrode provided contiguously at, at least one end of one of two electrode strips
of the plurality of electrode strips, the second electrode provided contiguously at, at least one end of an other of the two
electrode strips that are positioned at opposite ends of an alternately arranged direction where the plurality of electrode
strips and the plurality of light-emitting arrays are arranged alternately and parallel to each other,

wherein the plurality of light-emitting arrays, that are arranged parallel to each other include a central-position light-emitting
array that is positioned in a center of the alternately arranged direction where the plurality of electrode strips and the
plurality of light-emitting arrays are arranged alternately and parallel to each other, and

wherein the number of the light-emitting diode elements arranged in each of the light-emitting arrays is gradually decreased
from the central-position light-emitting array that is positioned in the center of the alternately arranged direction toward
the light-emitting arrays positioned adjacent to the two electrode strips where the electrode strips and the light-emitting
arrays are arranged alternately and parallel to each other.

US Pat. No. 9,702,515

LIGHT-EMITTING DEVICE AND METHOD FOR COMPENSATING CHROMATICITY OF LIGHT-EMITTING DEVICE

CITIZEN WATCH CO., LTD., ...

1. A light-emitting device comprising:
a substrate;
a first LED chip which is arranged on said substrate, and which has a characteristic such that ?x and ?y, each representing
an amount of displacement on an xy chromaticity diagram, both are negative as temperature rises; and

a second LED chip which is arranged on said substrate, and which has a characteristic such that ?x and ?y, each representing
an amount of displacement on the xy chromaticity diagram, both are positive as temperature rises,

wherein the characteristic of said first LED chip and that of said second LED chip are set so that a temperature shift direction
on the xy chromaticity diagram of said first LED chip and that of said second LED chip cancel out each other, whereby chromaticity
of light emitted from said light-emitting device stays within a 2-step MacAdam ellipse despite changes over temperature range
from 25° C. to 85° C. of said light-emitting device.

US Pat. No. 9,648,671

LIGHTING DEVICE

CITIZEN ELECTRONICS CO., ...

1. A lighting device comprising:
a circuit substrate comprising an anode electrode and a cathode electrode that are arranged separated from each other on a
surface of the circuit substrate with a space between the anode electrode and the cathode electrode;

a light-emitting device comprising a light-emitting element that comprises a p-contact and an n-contact arranged separated
from each other on a first surface of the light-emitting element, and a first phosphor layer comprising phosphor particles
and covering the light-emitting element except portions of the p-contact and n-contact of the light-emitting element, the
first surface of the light-emitting element facing the circuit substrate and

a second phosphor layer comprising phosphor particles and arranged in the space between the anode electrode and the cathode
electrode of the circuit substrate,

wherein the first phosphor layer comprises a higher density of the phosphor particles on a position of the first surface between
the p-contact and the n-contact of the light-emitting element than on a position of a second surface that is a surface opposite
to the first surface of the light-emitting element,

wherein an air layer is located between a lower surface of the first phosphor layer and an upper surface of the second phosphor
layer of the circuit substrate, and

wherein the first surface with the first phosphor layer between the p-contact and the n-contact of the light-emitting element
of the light-emitting device is electrically mounted on the anode electrode and the cathode electrode of the circuit substrate
that comprises the second phosphor layer arranged between the anode electrode and the cathode electrode of the circuit substrate.

US Pat. No. 9,658,380

PLANAR LIGHTING DEVICE

CITIZEN ELECTRONICS CO., ...

1. A planar light guide device comprising:
a light source comprising a substrate, and light-emitting elements that are electrically connected to the substrate and are
arranged on a mounting surface of the substrate to be an alignment on a center line between two long edges of the mounting
surface of the substrate; and

a light-transmitting resin sealing the light-emitting elements and the mounting surface of the substrate, the light-transmitting
resin comprising a first side and a second side that is an opposite side of the first side

wherein the light-emitting elements each comprises a light-emitting surface that is positioned in the light-transmitting resin
between the first side and the second side of the light-transmitting resin,

the first side of the light-transmitting resin comprises optical elements that are arranged in a region adjacent to the light-emitting
elements, and each of the optical elements comprises a first surface and a second surface that is smaller in area than the
first surface, and the first surface of the optical element is inclined with an angle that is in a range of one to 40 degrees
with respect to a surface that is perpendicular to the mounting surface of the substrate with an edge of the surface in parallel
with the center line between the two long edges of the mounting surface of the substrate,

the second side of the light-transmitting resin comprises optical elements that are arranged in a region adjacent to the light-emitting
elements, and each of the optical elements comprises a first surface and a second surface that is smaller in area than the
first surface, and the first surface of the optical element is inclined with an angle that is in a range of one to 40 degrees
with respect to a surface that is perpendicular to the mounting surface of the substrate with an edge of the surface in parallel
with the center line between the two long edges of the mounting surface of the substrate.

US Pat. No. 9,793,072

PUSH SWITCH AND SWITCH MODULE

CITIZEN ELECTRONICS CO., ...

1. A push switch comprising:
a substrate;
a first fixed contact point disposed on a surface of the substrate;
a second fixed contact point disposed around the first fixed contact point on the surface of the substrate;
a convex dome-shaped movable member disposed on the surface of the substrate so that an end part of the movable member is
in contact with the second fixed contact point, the movable member being pressed so as to invert the dome shape and thereby
establish conduction between the first fixed contact point and the second fixed contact point; and

a buffer member disposed between the movable member and the substrate so as to cover the first fixed contact point without
being in contact with any one of fixed contact points when the buffer member is not pressed through the movable member, the
buffer member adjusting an operation load applied to the movable member during inversion of the dome shape,

wherein the buffer member is a leaf spring interposed between the substrate and the movable member to cover the first fixed
contact point.

US Pat. No. 9,810,381

LED MODULE

CITIZEN WATCH CO., LTD., ...

1. An LED module comprising:
a module substrate;
a first LED device having a side face formed as an optically transmissive face; and
a second LED device having a side face formed as a light blocking face,
wherein said first LED device and said second LED device are arranged one adjacent to the other on said module substrate in
such a manner that the optically transmissive face of said first LED device and the light blocking face of said second LED
device oppose each other.

US Pat. No. 9,768,151

LIGHT-EMITTING MODULE

CITIZEN ELECTRONICS CO., ...

1. A light-emitting module comprising:
a substrate;
a first electrode and a second electrode disposed on the substrate;
a plurality of LED devices connected between the first electrode and the second electrode;
a dam member disposed on the substrate so as to surround the plurality of LED devices; and
a phosphor-containing resin for sealing the plurality of LED devices by being filled into a region surrounded by the dam member
on the substrate, wherein

the first electrode includes a first outer electrode disposed under the dam member and a first inner electrode disposed nearer
to a center of the substrate than the first outer electrode is, and

the second electrode includes a second outer electrode disposed under the dam member and a second inner electrode disposed
nearer to the center of the substrate than the second outer electrode is, wherein

the first outer electrode is disposed so as to oppose the second inner electrode, and the second outer electrode is disposed
so as to oppose the first inner electrode, wherein distributions of mounting positions and rotation angles of the plurality
of LED devices are point-symmetric with respect to the center of the substrate.

US Pat. No. 9,448,535

RIGID DECORATIVE MEMBER HAVING WHITE RIGID COATING LAYER, AND METHOD FOR PRODUCING THE SAME

CITIZEN HOLDINGS CO., LTD...

1. A rigid decorative member comprising a base and a rigid coating layer laminated on or above the base, wherein
the rigid coating layer comprises a reaction compound of (i) raw metal, in which a metal M1 and a metal M2 and optionally a metal M3 are combined, and (ii) a non-metallic element selected from one or two of nitrogen and carbon, or comprises an alloy in which
a metal M1 and a metal M2 and optionally a metal M3 are combined;

the metal M1 is selected from one or two of Mo and W; the metal M2 is selected from one or two of Nb and Ta; and the metal M3 is selected from one or two or more of Cr, Ti, Hf, and Zr.

US Pat. No. 9,185,672

SATELLITE RADIO-CONTROLLED WRISTWATCH

CITIZEN HOLDINGS CO., LTD...

1. A satellite radio-controlled wristwatch, comprising:
a satellite radio wave reception unit comprising an antenna for receiving a satellite radio wave, a high frequency circuit,
and a decoder circuit;

a clock circuit for holding and counting an internal time;
an operating member for receiving an operation by a user; and
a controller for controlling timings of at least:
an activation operation of supplying power to the satellite radio wave reception unit for activation thereof;
an acquisition and tracking operation of acquiring and tracking a certain satellite radio wave by the satellite radio wave
reception unit; and

a time information acquisition operation of acquiring time information from the satellite radio wave received by the satellite
radio wave reception unit,

the controller being configured to:
detect a reception instruction by the user through the operation of the operating member;
immediately start the activation operation when a delay time period is longer than a first threshold value and shorter than
a second threshold value, wherein the delay time period is calculated from a time point at which the reception instruction
is issued to an earliest time information receivable time point predicted based on the internal time;

wait for arrival of an activation time point inversely calculated from the earliest time information receivable time point
to start the activation operation when the delay time period is longer than the second threshold value; and

wait for arrival of another activation time point inversely calculated from a next earliest time information receivable time
point to start the activation operation when the delay time period is shorter than the first threshold value.

US Pat. No. 9,799,501

SAMPLE MOUNTING PLATE

CITIZEN FINEDEVICE CO., L...

1. A sample mounting plate comprising:
a substrate that has an insulation property;
a conductive interference layer that has conductivity and exhibits a color different from the substrate with optical interference,
and is laminated on the substrate; and

a water-repellent layer that has water repellency higher than water repellency of the substrate, and is laminated on at least
part of the conductive interference layer,

wherein a sample to become an object of ionization in mass spectrometry is mounted on at least one of the conductive interference
layer and the water-repellent layer.

US Pat. No. 9,725,307

METHOD FOR PRODUCING MICROCHANNEL, AND MICROCHANNEL

CITIZEN WATCH CO., LTD., ...

1. A method for producing a microchannel, comprising the steps of:
forming a layer of an uncured curable resin on a substrate;
inserting into the curable resin a needle body that can inject a liquid;
injecting a liquid in a tubular shape into the curable resin via the needle body while moving the needle body;
extracting the needle body from the curable resin; and
curing the curable resin to form a channel in a tubular region injected with the liquid.

US Pat. No. 9,170,567

SATELLITE RADIO-CONTROLLED WRISTWATCH

CITIZEN HOLDINGS CO., LTD...

1. A satellite radio-controlled wristwatch, comprising:
a satellite radio wave reception unit comprising an antenna for receiving a satellite radio wave, a high frequency circuit,
and a decoder circuit;

a clock circuit for holding and counting an internal time; and
a controller for controlling timings of at least:
an activation operation of supplying power to the satellite radio wave reception unit for activation thereof;
an acquisition and tracking operation of acquiring and tracking a certain satellite radio wave by the satellite radio wave
reception unit; and

a time information acquisition operation of acquiring time information from the satellite radio wave received by the satellite
radio wave reception unit,

the controller being configured to:
wait for an arrival of an activation time point, which is inversely calculated by subtracting an acquisition and tracking
time period and an activation time period from a time information receivable time point that is predicted based on the internal
time, and then start the activation operation; and

vary the acquisition and tracking time period depending on a predetermined condition.

US Pat. No. 9,812,493

LIGHTING DEVICE

CITIZEN ELECTRONICS CO., ...

1. A lighting device comprising:
a first light emitter comprising a first light-emitting element with a p-n junction and a first side cover being directly
arranged on a peripheral side surface of the first light-emitting element and partly covering the peripheral side surface
of the first light-emitting element to shield and/or reflect light inward toward the first light-emitting element; and

a second light emitter comprising a second light-emitting element with a p-n junction and a second side cover being directly
arranged on a peripheral side surface of the second light-emitting element and partly covering the peripheral side surface
of the second light-emitting element to shield and/or reflect light inward toward the second light-emitting element,

wherein the first light emitter and the second light emitter are disposed to face each other at uncovered side portions that
are uncovered by the first side cover and the second side cover.

US Pat. No. 9,292,006

RADIO-CONTROLLED TIMEPIECE

CITIZEN HOLDINGS CO., LTD...

1. A radio-controlled timepiece comprising:
a timepiece measuring circuit configured to serve as a reference signal source during a time measurement;
a heterodyne receiver circuit configured to receive radio waves from an external source;
a PLL circuit configured to generate a local oscillation frequency used by the heterodyne receiver circuit, wherein the timepiece
measuring circuit serves as a reference frequency generating unit that generates a reference frequency of the PLL circuit;

a control unit that changes an oscillation condition of the timepiece measuring circuit, based on a reception and a non-reception
of the radio waves from the external source, the control unit changing the oscillation condition of the timepiece measuring
circuit such that the oscillation frequency of the timepiece measuring circuit differs based on the reception and the non-reception
of the radio waves from the external source; and

a correcting unit that corrects a time measurement drift of a time measurement during the reception of the radio waves from
the external source that is relative to a time measurement during the non-reception of the radio waves from the external source,
the time measurement drift being consequent to the oscillation frequency of the timepiece measuring circuit differing based
on the reception and the non-reception of the radio waves from the external source.

US Pat. No. 9,285,780

SATELLITE RADIO-CONTROLLED WRISTWATCH

CITIZEN HOLDINGS CO., LTD...

1. A satellite radio-controlled wristwatch, comprising:
a satellite radio wave reception unit comprising an antenna for receiving a satellite radio wave, a high frequency circuit,
and a decoder circuit;

a clock circuit for holding and counting an internal time; and
a controller which controls a time information acquisition operation of acquiring time information from the satellite radio
wave received by the satellite radio wave reception unit,

the controller being configured to selectively execute, in the time information acquisition operation, based on error evaluation
of the internal time:

a shortened time adjustment operation of ending the time information acquisition operation at a stage at which head information
that is preamble data of a fixed value representing a head of unit information is received, and adjusting the internal time
based on a timing at which the head information is received; and

a normal time adjustment operation of receiving the time information, and adjusting the internal time based on the time information.

US Pat. No. 9,882,106

SEMICONDUCTOR DEVICE AND LIGHT-EMITTING APPARATUS

CITIZEN ELECTRONICS CO., ...

1. A semiconductor device which is bonded to a substrate by solder, comprising:
a semiconductor layer;
a plurality of device electrodes formed on a bottom surface of the semiconductor layer; and
a plurality of auxiliary electrodes formed integrally with the plurality of device electrodes, respectively, wherein
each of the auxiliary electrodes includes a groove portion formed in a bottom surface thereof,
a side face of the groove portion is slanted with respect to the bottom surface of the semiconductor layer so that the groove
portion becomes narrower in width with increasing distance from a lower end of the auxiliary electrode and decreasing distance
to an upper end thereof,

the bottom surface of each of the auxiliary electrodes other than the groove portion is a flat surface, and
in each of the auxiliary electrodes having a plurality of side faces, the groove portion is formed passing through a side
face of the auxiliary electrode that does not face any other auxiliary electrode.

US Pat. No. 9,599,968

SATELLITE RADIO-CONTROLLED WRISTWATCH

CITIZEN WATCH CO., LTD., ...

1. A satellite radio-controlled wristwatch, comprising:
a satellite radio wave reception unit comprising an antenna for receiving a satellite radio wave, a high frequency circuit,
and a decoder circuit;

an analog indication member for indicating at least that a reception operation is in process, and for indicating a reception
result;

a clock circuit for holding and counting an internal time;
an operating member for receiving an operation of a user; and
a controller for controlling timing of at least:
an activation operation of supplying power to the satellite radio wave reception unit for activation thereof;
an acquisition and tracking operation of acquiring and tracking a certain satellite radio wave by the satellite radio wave
reception unit;

a time information acquisition operation of acquiring time information from the satellite radio wave received by the satellite
radio wave reception unit;

a detection operation which detects if the operating member is operated continuously for a predetermined operation reception
time period; and

a reception indication movement operation of moving the analog indication member to a position indicating that the reception
operation is in progress,

the controller being configured to carry out such control that the reception indication movement operation overlaps with the
acquisition and tracking operation,

wherein the controller starts the activation operation during the continuous operation detection operation after the detection
operation is started.

US Pat. No. 9,594,238

ABERRATION CORRECTION DEVICE AND LASER MICROSCOPE

CITIZEN WATCH CO., LTD., ...

1. An aberration correction device for correcting wave front aberrations generated by an optical system including an objective
lens disposed on an optical path of a light flux of coherent light to be emitted from a coherent light source, comprising:
a symmetrical aberration correction element which corrects symmetrical aberrations among the wave front aberrations generated
on the optical path, the symmetrical aberrations being wave front aberrations symmetrical with respect to an optical axis;

an asymmetrical aberration correction element which corrects asymmetrical aberrations generated with respect to the light
flux obliquely incident on the objective lens with a viewing angle at a periphery of an irradiation area of the coherent light,
the asymmetrical aberrations being wave front aberrations asymmetrical with respect to the optical axis; and

a control circuit configured to calculate a phase distribution pattern of the asymmetrical aberrations by adding the asymmetrical
aberrations according to the viewing angle to residual aberrations of the symmetrical aberrations that remain after the correction
of the symmetrical aberration by the symmetrical aberration correction element and depend on positional deviation due to oblique
incidence of the light flux, obtain a phase modulation profile by inverting the phase distribution pattern, and make the asymmetrical
aberration correction element display the phase modulation profile.

US Pat. No. 9,469,765

GOLDEN RIGID DECORATIVE MEMBER

CITIZEN HOLDINGS CO., LTD...

1. A rigid decorative member comprising:
a base; and
a rigid decorative coating with plural layers containing a reaction compound of an alloy of Ti and one or two or more metals
selected from Nb, Ta, and V, and of one or two or more non-metallic elements selected from nitrogen, oxygen, and carbon on
the base, wherein

the plural layers include an adhesion layer stacked on a substrate, a gradient adhesion layer stacked on the adhesion layer,
an abrasion-resistant layer stacked on the gradient adhesion layer, and a golden adjustment gradient layer stacked on the
abrasion-resistant layer;

a non-metallic element in the adhesion layer is low-concentration oxygen;
a non-metallic element in the gradient adhesion layer, that of the abrasion-resistant layer, and that of the golden adjustment
gradient layer mainly comprise nitrogen and are selectively selected from carbon and oxygen;

the content of a non-metallic element in a reaction compound included in the gradient adhesion layer is increased in a gradient
manner in a thickness direction with departing from the substrate; and

the content of a non-metallic element in a reaction compound included in the golden adjustment gradient layer is increased
or decreased in a gradient manner in a thickness direction with departing from the substrate.

US Pat. No. 9,887,185

PACKAGING OF LED CHIPS AND DRIVER CIRCUIT ON THE SAME SUBSTRATE

CITIZEN WATCH CO., LTD., ...

1. An LED module comprising:
a circuit substrate;
at least two supply terminals for supplying to said circuit substrate a rectified waveform voltage derived from a commercial
AC power supply and arranged in the corners of said circuit substrate;

a plurality of LED dies mounted directly in bare chip form on one surface of said circuit substrate and arranged so as to
form a series circuit;

a plurality of FET dies, mounted directly in bare chip form on said one surface of said circuit substrate, for limiting current
flowing through said plurality of LED dies;

a constant current circuit mounted on said one surface of said circuit substrate and connected in series with said series
circuit;

a dam member formed on said circuit substrate so as to enclose an LED block region where said plurality of LED dies are mounted
and a circuit block region where at least one of said plurality of FET dies is mounted and so as to separate said LED block
region from said circuit block region;

a fluorescent resin for covering said LED block region and said circuit block region, the fluorescent resin being a single
material;

a resistor network mounted directly in bare chip form on said one surface of said circuit substrate; and
a bypass circuit connected to an intermediate terminal provided on said series circuit, wherein
said constant current circuit includes one of said plurality of FET dies and said bypass circuit includes other of said plurality
of FET dies,

a portion of said dam enclosing said LED block region forms a portion of said dam enclosing said circuit block region, and
said dam member enclosing said LED block region has a annular shape and said dam member enclosing said circuit block region
has a rectangular shape except for said portion of said dam member.

US Pat. No. 9,859,482

LED LIGHTING APPARATUS AND METHOD FOR MANUFACTURING THE SAME

Citizen Electronics Co., ...

1. A method for manufacturing an LED lighting apparatus, comprising the steps of:
forming a mask on a device mounting region on a multilayered structure having an aluminum substrate, an adhesive layer, a
reflective layer, and an enhanced reflectivity layer;

forming a roughened surface region on said aluminum substrate by removing portions of said adhesive layer, said reflective
layer, and said enhanced reflectivity layer surrounding said mask;

bonding a printed wiring substrate on said roughened surface region;
removing said mask and bonding an LED device on said device mounting region;
connecting said LED device to said printed wiring substrate by a wire; and
depositing a phosphor resin over a region inside a frame member formed so as to surround said LED device.

US Pat. No. 9,464,355

COLORED RIGID DECORATIVE MEMBER

CITIZEN HOLDINGS CO., LTD...

1. A colored rigid decorative member comprising:
a base;
an adhesion layer, stacked on the base, comprising a lower oxide layer of an alloy in which a metal M1 and a metal M2, and,
in addition, selectively a metal M3 are combined;

an inclined adhesion layer, stacked on the adhesion layer, comprising a reaction compound of an alloy in which a metal M4
and a metal M5, and, in addition, selectively a metal M6 are combined and of a non-metallic element selected from one or two
or more of nitrogen, carbon, and oxygen;

an abrasion-resistant layer, stacked on the inclined adhesion layer, comprising a reaction compound of an alloy in which a
metal M7 and a metal M8, and, in addition, selectively a metal M9 are combined and of a non-metallic element selected from
one or two or more of nitrogen, carbon, and oxygen; a recolored inclined layer, stacked on the abrasion-resistant layer, comprising
a reaction compound of an alloy in which a metal M10 and a metal M11, and, in addition, selectively a metal M12 are combined
and of a non-metallic element selected from one or two or more of nitrogen, carbon, and oxygen; and

a colored decorative layer stacked on the recolored inclined layer, wherein
each of the metals M1, M4, M7, and M10 is selected from one or two of Mo and W;
each of the metals M2, M5, M8, and M11 is selected from one or two of Nb and Ta;
the metals M3, M6, M9, and M12 are selected from one or two or more of Cr, Ti, Hf, and Zr;
the content of a non-metallic element in a reaction compound included in the inclined adhesion layer is increased in an inclining
manner in a thickness direction with departing from a substrate; and

the content of a non-metallic element in a reaction compound included in the recolored inclined layer is decreased in an inclining
manner in a thickness direction with departing from the substrate.

US Pat. No. 9,854,631

LED ILLUMINATION DEVICE

CITIZEN ELECTRONICS CO., ...

1. An LED illuminator comprising:
a rectifier;
a first LED string connected to the rectifier and including a first partial LED string and a second partial LED string connected
in series with the first partial LED string;

a second LED string connected to the rectifier in parallel to the first LED string and including a third partial LED string
and a fourth partial LED string connected in series with the third partial LED string;

a first switching circuit configured to switch between a state where only the first partial LED string is connected to the
rectifier and a state where the first partial LED string and the second partial LED string connected in series are connected
to the rectifier as a full-wave rectified voltage waveform that is output from the rectifier increases/decreases, and

a second switching circuit configured to switch between a state where only the third partial LED string is connected to the
rectifier and a state where the third partial LED string and the fourth partial LED string connected in series are connected
to the rectifier as the full-wave rectified voltage waveform that is output from the rectifier increases/decreases, wherein

the switching timing by the first switching circuit and the switching timing by the second switching circuit are set so as
to differ from each other, and

a voltage applied to the first LED string by the rectifier and a voltage applied to the second LED string by the rectifier
are in the same phase.

US Pat. No. 9,954,148

LIGHT-EMITTING APPARATUS WITH OPTICAL ELEMENT AND METHOD OF MANUFACTURING THE SAME

CITIZEN ELECTRONICS CO., ...

1. A light-emitting apparatus comprising:a plurality of light-emitting elements;
a substrate on which the plurality of light-emitting elements are mounted in a mounted region and a pair of electrodes for supplying power to the plurality of light-emitting elements is arranged around the mounted region;
a sealing resin that contains a phosphor excited by emission light from the plurality of light-emitting elements and seals the plurality of light-emitting elements on the mounted region; and
an optical element that is placed to cover the sealing resin and collects light emitted from the plurality of light-emitting elements through the sealing resin,
wherein the optical element comprises:
a bottom surface in contact with a flat region on the substrate between the pair of electrodes and the sealing resin, the bottom surface being provided with a lower concave portion in which the sealing resin is housed;
a lateral surface inclined so as that the optical element becomes wider toward an upper end thereof, wherein the lateral surface totally reflects light emitted laterally from the plurality of light-emitting elements through the sealing resin vertically upward; and
an upper surface that is larger than the bottom surface and includes an upper curved surface on which light emitted obliquely upward from the plurality of light-emitting elements through the sealing resin is refracted vertically upward.

US Pat. No. 9,882,107

LED PACKAGE WITH COVERED BONDING WIRE

CITIZEN ELECTRONICS CO., ...

1. An LED package comprising:
a board comprising a pair of connection electrodes formed thereon;
an LED element mounted on the board;
a bonding wire made of silver and electrically connecting the LED element to the pair of connection electrodes;
a protective layer which is made of silicon dioxide, wherein the protective layer covers a surface of the bonding wire and
protects the bonding wire from corrosion; and

a covering layer containing a phosphor and covering the bonding wire and the protective layer,
wherein the phosphor is excited by emitted light from the LED element to emit light having an absorbance in the bonding wire
lower than that of the emitted light and a wavelength longer than that of the emitted light.

US Pat. No. 9,690,259

ELECTRONIC TIMEPIECE

CITIZEN WATCH CO., LTD., ...

1. An electronic timepiece, comprising:
a step motor comprising a coil and a rotor;
a motor driver configured to drive the step motor;
a normal drive pulse generation circuit configured to output a normal drive pulse at a drive rank designated from among normal
drive pulses at a plurality of drive ranks different in driving force;

a rotation detection pulse generation circuit configured to output a detection pulse at a predetermined timing after the outputting
of the normal drive pulse;

a rotation detection circuit which comprises at least a first detection mode determination circuit configured to conduct a
determination in a first detection mode after the outputting of the normal drive pulse and which is configured to detect rotation
or non-rotation of the rotor based on a detection signal generated by the detection pulse;

a rotation determination counter circuit configured to count a number of times that the rotation has been successively detected
by the rotation detection circuit;

a first detection mode determination counter circuit configured to count a number of times that the detection signal generated
by the detection pulse becomes a predetermined detection pattern in the first detection mode; and

a drive rank selection circuit configured to designate a drive rank of the normal drive pulse to be output by the normal drive
pulse generation circuit based on results of the counting conducted by the rotation determination counter circuit and the
first detection mode determination counter circuit.

US Pat. No. 9,342,055

ELECTRONIC WATCH

CITIZEN HOLDINGS CO., LTD...

1. An electronic watch, comprising:
an indicator;
a decode circuit configured to segment a whole movable region of the indicator into at least a region A having predetermined
width before a specific position and a region B having predetermined width after the specific position, and output region
data, said region data indicates in which position the indicator is in, within at least the region A and the region B;

a position information circuit configured to acquire movement start region data corresponding to a movement start position
of the indicator and stop region data corresponding to a stop position after start of movement, and configured to output,
when the movement start region data or the stop region data are acquired, an acquisition signal indicating that one or both
of the movement start region data and stop region data are acquired; and

a control unit configured to acquire the movement start region data and the stop region data from the position information
circuit in response to the acquisition signal from the position information circuit, and configured to perform processing
including a determination whether the indicator passes the specific position and a determination of a movement direction of
the indicator.

US Pat. No. 9,860,944

LED DRIVER CIRCUIT

CITIZEN ELECTRONICS CO., ...

1. An LED driver circuit comprising:
a diode bridge rectifier circuit that full-wave rectifies the alternating current to output the rectified output voltage;
a first LED group, in which a plurality of first LEDs are connected in series and which is connected to the diode bridge rectifier
circuit in parallel;

a second LED group, in which a plurality of second LEDs are connected in series and which is connected to the diode bridge
rectifier circuit in parallel;

a third LED group, in which a plurality of the second LEDs are connected in series and which is connected to the second LED
group in series;

a first phosphor-containing resin region that covers the first LED group, and converts a wavelength of light emitted from
the first LED group to emit the light having a first color temperature;

a second phosphor-containing resin region that covers the second LED group and the third LED group, and converts a wavelength
of light emitted from the second LED group and the third LED group to emit the light having a second color temperature; and

a control unit that switches from a condition that only the first LED group is turning-on to a condition that only the second
LED group is turning-on, and further, from the condition that only the second LED group is turning-on to a condition that
the second LED group and the third LED group are turning-on in response to an increase in the rectified output voltage, wherein

the number of the first LEDs included in the first LED group is smaller than the number of the second LEDs included in the
second LED group,

the control unit includes a bypass pathway arranged between the second LED group and the third LED group, and
the control unit switches from the condition that only the first LED group is turning-on to the condition that only the second
LED group is turning-on on the basis of a current flowing through the second LED group.

US Pat. No. 9,612,579

ELECTRONIC CLOCK

CITIZEN WATCH CO., LTD., ...

1. An electronic clock, comprising:
a bipolar stepping motor;
a motor driver including two driving terminals for driving the stepping motor;
a driving pulse generating circuit for generating a chopper driving pulse that is one group of several choppers for driving
the stepping motor;

a selector for outputting the generated chopper driving pulse, which has been generated by the driving pulse generating circuit,
to the motor driver; and

an adjustment pulse generating circuit for generating an adjustment pulse, which is output in an OFF period between outputs
of the choppers of the chopper driving pulse during an ON period of the one group of the chopper driving pulse, to the selector,

wherein the selector outputs the original signal of the adjustment pulse to the motor driver so that the adjustment pulse
is output from a driving terminal that is different from a driving terminal from which the chopper driving pulse is output,

wherein the adjustment pulse generating circuit generates a plurality of different kinds of the adjustment pulses, and
wherein the electronic clock further comprises a specifying circuit for selecting one of the plurality of different kinds
of the adjustment pulses and instructing the adjustment pulse generating circuit to output the selected one of the plurality
of different kinds of the adjustment pulses,

wherein the chopper driving pulse has a plurality of OFF periods, and
wherein the adjustment pulse includes a plurality of small pulses corresponding to the plurality of OFF periods, and the plurality
of different kinds of adjustment pulses have different numbers and output positions of the plurality of small pulses.

US Pat. No. 9,471,040

RIGID DECORATIVE MEMBER

CITIZEN HOLDINGS CO., LTD...

1. A rigid decorative member comprising:
a base; and
a rigid decorative coating with plural layers containing a reaction compound of an alloy of Cr and one or two or more selected
from the group consisting of Mo, W, Nb, Ta, Ti, Hf, Zr, and V, and of one or two or more non-metallic elements of nitrogen,
carbon, and oxygen, stacked on the base, wherein,

said rigid decorative coating with the several layers comprises an adhesion layer stacked on the substrate, a gradient adhesion
layer stacked on the adhesion layer, an abrasion-resistant layer stacked on the gradient adhesion layer, and a recolored gradient
layer stacked on the abrasion-resistant layer;

a non-metallic element in the adhesion layer is low-concentration oxygen;
a non-metallic element in the gradient adhesion layer, the abrasion-resistant layer, and the recolored gradient layer comprises
one or two or more of nitrogen, carbon, and oxygen;

the content of a non-metallic element in a reaction compound included in the gradient adhesion layer is increased in a gradient
manner in a thickness direction with departing from the substrate; and

the content of a non-metallic element in a reaction compound included in the recolored gradient layer is increased or decreased
in a gradient manner in a thickness direction with departing from the substrate.

US Pat. No. 9,317,017

SATELLITE RADIO-CONTROLLED WRISTWATCH

CITIZEN HOLDINGS CO., LTD...

1. A satellite radio-controlled wristwatch, comprising:
a satellite radio wave reception unit comprising an antenna for receiving a satellite radio wave, a high frequency circuit,
and a decoder circuit;

a clock circuit for holding and counting an internal time; and
a controller which controls a time information acquisition operation of acquiring time information from the satellite radio
wave received by the satellite radio wave reception unit,

the controller being configured to selectively execute, in the time information acquisition operation, based on error evaluation
of the internal time:

a shortened time adjustment operation of ending the time information acquisition operation at a stage at which head information
that is preamble data of a fixed value representing a head of unit information is received, and adjusting the internal time
based on a timing at which the head information is received; and

a normal time adjustment operation of receiving the time information, and adjusting the internal time based on the time information.

US Pat. No. 10,024,517

LENS MEMBER AND LIGHT-EMITTING DEVICE USING SAME

CITIZEN ELECTRONICS CO., ...

1. A light-emitting device comprising a lens member,the lens member comprising:
a light-incident side;
a light-exit side that is opposite to the light-incident side;
a Fresnel lens arranged on the light-incident side to be centered around a center axis of the light-incident side; and
a diffraction grating structure arranged around a periphery of the Fresnel lens and arranged to be centered around the center axis;
a light source arranged to face the light-incident side of the lens member and including a light-emission surface whose center is aligned with the center axis of the lens member,
wherein R is defined as a radius of the light-emission surface of the light source, r is defined as a radial distance of the light-incident side of the lens member from the center axis of the light-incident side, h is defined as a distance from the light-emission surface of the light source to the light-incident side of the lens member, and ?? is defined as a range of incident angle of light from the light-emission surface of the light source incident on the light-incident side of the lens member, and
the diffraction grating structure satisfies
??=arctan{(r+R)/h}?arctan{(r?R)/h}?15°.

US Pat. No. 9,310,777

RADIO-CONTROLLED WRISTWATCH

CITIZEN HOLDINGS CO., LTD...

1. A radio-controlled wristwatch, comprising:
a reception unit for receiving a radio wave to extract time-of-week specifying information and week specifying information;
a clock for counting a current date and time;
a date and time adjustment unit for adjusting the current date and time counted by the clock;
a week information holding unit for holding the week specifying information;
a week information updating unit for updating the week specifying information held in the week information holding unit based
on the current date and time counted by the clock; and

a week information reception limiting unit for limiting the reception of the week specifying information performed by the
reception unit, and controlling the reception unit to receive the week specifying information in a predetermined case,

wherein the week information reception limiting unit is configured to control the reception unit to receive the week specifying
information in at least one of the cases a) and d) and at least one of cases b), c), and e), wherein

in case a) a user has adjusted a date counted by the clock;
in case b) a date and time converted from the time-of-week specifying information received by the reception unit or a date
and time counted by the clock falls within a predetermined range with respect to a time point at which the week specifying
information is updated;

in case c) in accordance with the time-of-week specifying information received by the reception unit,
a difference in the forward direction is defined as a difference between the date and time converted from the time of week
and the date and time counted by the clock when assuming that the date and time converted from the time of week is located
in the forward direction with respect to the date and time counted by the clock,

a difference in the reverse direction is defined as a difference between the date and time converted from the time of week
and the date and time counted by the clock when assuming that the date and time converted from the time of week is located
in the reverse direction with respect to the date and time counted by the clock,

a smaller one of the difference in the forward direction and the difference in the reverse direction extends over the time
point at which the week specifying information is updated;

in case d) the clock has halted due to a decrease in power supply voltage; and
in case e) the user has adjusted information indicating a number of cycles of the week specifying information.

US Pat. No. 9,920,889

LIGHTING DEVICE INCLUDING PHOSPHOR COVER AND METHOD OF MANUFACTURING THE SAME

CITIZEN ELECTRONICS CO., ...

1. A lighting device comprising:
a light source comprising a light-emitting surface, a substrate, and at least one light-emitting element arranged in a region
of the substrate; and

a phosphor cover comprising a spiral surface that covers the light-emitting surface of the light source,
wherein the phosphor cover is arranged above the light-emitting surface of the light source.

US Pat. No. 9,631,781

OPTICAL INTEGRATED DEVICE

CITIZEN WATCH CO., LTD., ...

1. An optical integrated device comprising:
a substrate;
a spacer having a micro-bump structure of Au formed on an upper surface thereof and bonded to said substrate by surface activated
bonding;

an optical device optically coupled to a first device mounted directly on said upper surface of said spacer; and
an electrical device mounted directly on top of said optical device and having a thermal expansion coefficient which is different
from said optical device,

wherein said first device is bonded off center to said spacer by surface activated bonding via said micro-bump structure,
said electrical device is bonded to said optical device by surface activated bonding via a bonding portion formed from a metallic
material on said optical device, and

a solid pattern of Au having the same height as said micro-bump structure and equalizing pressing force applied from above
said spacer is formed on said upper surface of said spacer other than an area where said micro-bump structure is formed.

US Pat. No. 9,588,502

MACHINE TOOL CONTROL DEVICE

Citizen Watch Co., Ltd., ...

1. A machine tool control device having a plurality of control systems for controlling preliminarily allocated drive axes
of a machine tool and capable of operating the machine tool by executing a multisystem program including a plurality of machining
programs respectively corresponding to the plurality of control systems and controlled independently of each other by their
respective corresponding control systems, each of the plurality of control systems having a system number, each of the plurality
of machining programs being composed of multiple program portions, said machining programs including wait commands for causing
each program portion of each of said plurality of machining programs to wait, before commencing its own execution, for completion
of the execution of at least one program portion in a program corresponding to another one of said control systems, the machine
tool control device comprising:
sequential execution means for executing a cycle of sequential execution in which unexecuted portions of each of the plurality
of machining programs, each of said portions being a part of a machining program corresponding to a different one of said
control systems, are executed, each to a wait command, in a predetermined order of the plurality of control systems; and

continuous execution means for sequentially executing program portions of machining programs respectively corresponding to
the plurality of control systems in a linear manner by causing said sequential execution means to execute recursively a cycle
of sequential execution, in which, in each said recursively executed cycle, plural machine program portions, each being a
part of a machining program corresponding to a different one of said control systems, are executed, and in which, in a plurality
of said recursively executed cycles, a first to last of the plural machining portions in an execution order are sequentially
executed by the sequential execution means by starting each of said plurality of machining program portions following said
first of said machining program portions in response to the wait command of an immediately preceding one of said plurality
of machining program portions and only after said wait command of an immediately preceding one of said plurality of machining
program portions is executed.

US Pat. No. 9,120,933

WHITE HARD DECORATIVE MEMBER

CITIZEN HOLDINGS CO., LTD...

1. A white hard decorative member comprising:
a base material;
an adherence layer composed of a lower oxide layer of an alloy combining a metal M1, a metal M2 and selectively, a metal M3,
which is stacked on said base material;

a gradient adherence layer composed of a reaction compound between an alloy combining a metal M4, a metal M5 and selectively,
a metal M6 and a non-metal element selected from one member or two or more members of nitrogen, carbon and oxygen, which is
stacked on said adherence layer;

an abrasion-resistant layer composed of a reaction compound between an alloy combining a metal M7, a metal M8 and selectively,
a metal M9 and a non-metal element selected from one member or two or more members of nitrogen, carbon and oxygen, which is
stacked on said gradient adherence layer; and

a color-up gradient layer composed of a reaction compound between an alloy combining a metal M10, a metal M11 and selectively,
a metal M12 and a non-metal element selected from one member or two or more members of nitrogen, carbon and oxygen, which
is stacked on said abrasion-resistant layer,

wherein each of said metals M1, M4, M7 and M10 is selected from one or two of Mo and W,
each of said metals M2, M5, M8 and M11 is selected from one or two of Nb and Ta,
each of said metals M3, M6, M9 and M12 is selected from one member or two or more members of Cr, Ti, Hf and Zr,
the non-metal element content in the reaction compound constituting said gradient adherence layer is gradually increased in
a thickness direction with distance from the base material, and

the non-metal element content in the reaction compound constituting said color-up gradient layer is gradually decreased in
a thickness direction with distance from the base material.

US Pat. No. 9,810,398

OPTICAL DEVICE

CITIZEN WATCH CO., LTD., ...

1. An optical device comprising:
a plurality of light sources configured to respectively emit light of a different wavelength;
a stacked wave plate that is configured by a plurality of wave plates disposed in series, transmits the light emitted by the
plurality of light sources, and induces a phase difference on polarization components of the transmitted light; and

a plurality of polarization adjusting units configured to receive light from a respective light source and to respectively
adjust polarization directions of the light from said respective light source such that an angle between the polarization
directions of the light emitted by the plurality of light sources and input to the same stacked wave plate becomes an angle
that corrects an orientation angle difference that occurs at the stacked wave plate and is caused by differences in the wavelengths
of the light.

US Pat. No. 9,797,780

CONTACT TYPE INTERNAL THERMOMETER

CITIZEN WATCH CO., LTD., ...

1. A contact type internal thermometer, comprising:
a measurement surface that is brought into contact with a surface to be measured of a measurement object so as to calculate
an internal temperature of the measurement object;

a first temperature sensor stack comprising a first measurement surface side temperature sensor arranged on a measurement
surface side of a first flexible printed board, and a first back surface side temperature sensor arranged on a back surface
side of the first flexible printed board;

a second temperature sensor stack comprising a second measurement surface side temperature sensor arranged on a measurement
surface side of a second flexible printed board, and a second back surface side temperature sensor arranged on a back surface
side of the second flexible printed board; and

a controller configured to calculate the internal temperature of the measurement object based on measurement results of the
first measurement surface side temperature sensor, the first back surface side temperature sensor, the second measurement
surface side temperature sensor, and the second back surface side temperature sensor,

wherein the first back surface side temperature sensor and the second back surface side temperature sensor have different
surface areas such that one of the surface areas is intentionally larger than the other surface area.

US Pat. No. 9,731,353

BAR MATERIAL SUPPLYING DEVICE AND NUMERICAL CONTROL MACHINE TOOL HAVING THE SAME

CITIZEN MACHINERY CO., LT...

1. A bar material supplying device, comprising:
a feed rod having a leading end, the leading end including a finger chuck, the finger chuck configured to insertably and detachably
hold a bar material;

a motor and a cylinder device, each of the motor and the cylinder device independently configured to move the feed rod in
a longitudinal direction to insert the bar material into the finger chuck or pull the bar material from the finger chuck;
and

a control device configured to control driving of the motor and driving of the cylinder device, wherein
the control device is configured to control the driving of the motor and the driving of the cylinder device to move the feed
rod in an operation of inserting and pulling the bar material into and from the finger chuck, and

the control device is further configured to allow an error of an operation amount of the motor in the operation of inserting
and pulling the bar material into and from the finger chuck.

US Pat. No. 9,690,280

POWER CONSUMPTION OUTPUT DEVICE AND SYSTEM FOR AN AUTOMATIC LATHE

Citizen Watch Co., Ltd., ...

1. A processing system for manufacturing products from a supplied unit of elongated material by cutting the unit of elongated
material, said processing system comprising an automatic lathe that includes electrically-operated instruments related to
manufacturing said products and that sequentially feeds and cuts the supplied unit of elongated material to produce a plurality
of products therefrom, a material supplying device for sequentially supplying the unit of elongated material to the automatic
lathe, control means for controlling the automatic lathe and the material supplying device, and a power consumption output
device of the automatic lathe, said supplied unit of elongated material becoming shorter in length as said supplied unit is
sequentially fed and cut, the power consumption output device comprising:
power detection means for detecting power consumption of the electrically-operated instruments or the whole automatic lathe
during a predetermined processing operation wherein, from the beginning to the end of the processing operation, a supplied
unit of elongated material is sequentially fed and cut to produce said plurality of products therefrom, and sequentially becomes
shorter at least by an amount equal to the length of each product cut therefrom, and wherein the power consumed by said electrically-operated
instruments, and by the whole automatic lathe, changes from one product to another as a result of the shortening of the length
of said supplied unit of elongated material as each said product is cut therefrom; and

output means for calculating and outputting average electric energy consumption of the electrically-operated instruments or
the whole automatic lathe per product manufactured with the processing operation from said supplied unit of elongated material,
the calculation carried out by said output means being based on power consumption and a number of products, said power consumption
being power consumption detected by the power detection means, that changes from one product to another as a result of the
shortening of the length of said supplied unit of elongated material as said supplied unit is sequentially fed and cut, and
said number of products being the number of products manufactured in said processing operation, wherein:

the power detection means detects power consumption of the whole automatic lathe or the electrically-operated instruments
from the beginning to the end of a processing operation on a single supplied unit of said elongated material;

the output means calculates and outputs electric energy consumption of the electrically-operated instruments or the whole
automatic lathe, per product manufactured from said single supplied unit of elongated material by using the power consumption
detected by the power detection means and the number of products manufactured from the said single supplied unit of elongated
material, and

said control means determines when a product can no longer be made from the remaining material in said supplied unit of elongated
material, causes said power detection means to continue to detect said power consumption until a product can no longer be
made from the remaining material in said supplied unit of elongated material, and, when it determines that a product can no
longer be made from said remaining material, causes said power detection means to stop detecting power consumption and causes
said automatic lathe to elect said remaining material.

US Pat. No. 9,645,599

POWER SUPPLY MANAGEMENT DEVICE AND MACHINE TOOL HAVING THE POWER-SUPPLY MANAGEMENT DEVICE

Citizen Watch Co., Ltd., ...

1. A power-supply management device, comprising:
a power-supply-connecting/disconnecting section configured to connect/disconnect power supply to a plurality of electric-powered
sections provided in a machine tool, the electric-powered sections operating in processing of a material held in the machine
tool;

and
a comparator configured to compare a powered-on state of each electric-powered section during the processing of the material,
and detect an electric-powered section which does not need to be powered-on, wherein the power-supply-connecting/disconnecting
section is configured to disconnect the power supply to the electric-powered section which does not need to be powered-on
during the processing of the machine tool based on information from the comparator,

the comparator is configured to compare the powered-on state between synchronizations of each of the electric-powered sections
in response to a detection of a synchronization command of a control program, and detect the electric-powered section which
does not need to be powered-on when each of the electric-powered sections is powered-on before and after the synchronization,

the comparator is configured to compare an amount of time each of the electric-powered sections has been powered-on between
the synchronizations, and determine an electric-powered section, except an electric-powered section having a maximum powered-on
time between the synchronizations, as an electric-powered section which does not need to be powered-on, and
the power-supply-connecting/disconnecting section is configured to disconnect the power supply to the electric-powered section
which does not need to be powered on after the end of an operation between the synchronizations.

US Pat. No. 9,592,556

PROCESSING MACHINE

Citizen Machinery Co., Lt...

1. A processing machine comprising:
a main spindle;
a guide bush; and
a supporting base at a front section of said processing machine with respect to an axial direction of said main spindle, said
supporting base supporting said guide bush in a removable manner;

wherein said main spindle is located in a rear position of said guide bush with respect to the axial direction when said guide
bush is attached to said supporting base, and said main spindle is located in a position of said guide bush whereat said guide
bush had been located in a front position with respect to the axial direction when said guide bush is removed from said supporting
base;

wherein said supporting base has a fixed seal member contacting an outer circumferential surface of one of said main spindle
or a main spindle cover over an entire circumference of said one of said main spindle, said main spindle cover, or said main
spindle base when said main spindle is disposed in the front position;

wherein said seal member is located outside of an outer circumferential surface of said guide bush when said guide bush is
attached to said supporting base; and

wherein an inner diameter of said seal member in a relaxed state is smaller than an outer diameter of said one of said main
spindle, said main spindle cover, or said main spindle base.

US Pat. No. 10,020,291

LED LIGHT EMITTING DEVICE

CITIZEN ELECTRONICS CO., ...

1. An LED light emitting device comprising:a rectangular substrate having a short-side and a long-side;
a total of three light-emitting diode (LED) elements consisting of a first LED element, a second LED element and a third LED element that emit light with wavelengths different from one another; and
a reflecting member which is arranged on a surface of the substrate so that the first LED element, the second LED element and the third LED element are surrounded therein,
wherein the first LED element and the second LED element are mounted on the surface of the substrate so that a first distance from the short-side to a mounting position of the first LED element in a long-side direction of the substrate and a second distance from the short-side to a mounting position of the second LED element in the long-side direction are the same,
the center of the mounting position of the first LED element and the center of the mounting position of the second LED element are located in a center of the substrate in the long-side direction of the substrate,
the second LED element and the third LED element are mounted on the surface of the substrate so that the center of the mounting position of the second LED element and a center of a mounting position of the third LED element in a short-side direction of the substrate are the same,
the first LED element is electrically connected to a first pair of electrodes, the second LED element is electrically connected to a second pair of electrodes, and the third LED element is electrically connected to a third pair of electrodes so that a pre- determined voltage can be applied to each of the first LED element, the second LED element and the third LED element to emit light,
the reflecting member comprises a frame having a first side which is arranged on the substrate in the long-side direction of the substrate, a second side which is arranged on the substrate parallel to the first side at third side which is arranged on the substrate and joins the first side with the second side in the short-side direction of the substrate, and a fourth side which is arranged on the substrate parallel to the third side, and
the short-side direction is a direction which is parallel to the short-side and the long-side direction is a direction which is parallel to the long-side.

US Pat. No. 9,841,171

LIGHT-EMITTING DEVICE AND LIGHTING APPLIANCE INCLUDING THE LIGHT-EMITTING DEVICE

CITIZEN ELECTRONICS CO., ...

1. A light-emitting device comprising:
a substrate;
a light-emitting element electrically connected to the substrate and arranged in a light-emitting area that is positioned
on an upper surface of the substrate; and

a first electronic part that is electrically connected to the substrate and arranged outside the light-emitting area on the
upper surface of the substrate, the first electronic part obliquely protruding from an edge of the upper surface of the substrate.

US Pat. No. 9,798,153

PROJECTION APPARATUS

CITIZEN WATCH CO., LTD., ...

1. A stereoscopic projection apparatus for projecting an image, by scanning with one set of at least red, green, and blue
laser beams, the stereoscopic projection apparatus comprising: a light source section that emits the laser beams; a scan section
that scans a projection region two-dimensionally with the laser beams; a microlens array that includes a plurality of microlenses
on which the laser beams from the scan section are incident and that changes emission angles of the laser beams in accordance
with incident positions of the laser beams on the microlenses to create a light ray field in which light rays whose positions
and directions are controlled are emitted from each point on surfaces of the microlenses in accordance with an image to be
projected; a projection lens that makes the laser beams emitted from the light source section be collimated beams and makes
the collimated beams enter the scan section; and a second projection lens on which the laser beams from the scan section are
incident, the second projection lens converting the laser beams into converged beams passing positions depending on incident
angles of the laser beams and makes the converged beams enter the microlens array, wherein the second projection lens and
the microlens array are disposed at an interval so that a rear focal plane of the second projection lens approximately overlaps
with a front focal plane of the microlens array.

US Pat. No. 9,597,907

PRINTER

Citizen Watch Co., LTD., ...

1. A printer comprising:
a housing forming a substantially box shape;
a pair of frames disposed in the housing and arranged such that the frames oppose each other across a conveyance path of a
recording medium;

a cutout portion disposed at an upper end of each of the frames;
a shaft that while inserted inside a winding core on which long paper is wound into a roll shape, both ends of the shaft are
supported by the cutout portions and the shaft holds the paper while allowing the paper to be pulled out from the housing;
and

an exterior cover that is disposed in the housing, is formed using an insulating material, has openings that open the cutout
portions exteriorly, and covers the pair of the frames with the cutout portions opened exteriorly through the openings.

US Pat. No. 9,920,910

METHOD FOR MOUNTING LIGHT-EMITTING ELEMENTS

CITIZEN ELECTRONICS CO., ...

1. A mounting method for mounting N light-emitting elements in a circular mounting area provided on a substrate of a lighting
device, the method comprising:
setting the circular mounting area of radius R on the substrate which is surrounded by an enclosure frame;
setting N smaller circular areas each with radius of r, wherein radius r is the maximum radius that allows the N smaller circular
areas to be maximized and to be all contained inside the circular mounting area of radius R without an overlapping portion
of the N smaller circular areas on the basis of the theory of close packing of circles;

mounting the N light-emitting elements at the substrate to be positioned at the center positions of the N smaller circular
areas; and

electrically connecting the N light-emitting elements with electrodes, which are arranged around the mounting area on the
substrate, by wire bonding; and

filling a sealing resin, which includes phosphor materials, within the enclosure frame in order to seal the N light-emitting
elements therein and create a light emitting area,

wherein the N smaller circular areas are set with a packing ratio d of the N smaller circular areas in the mounting area to
be 75% or higher, and N is an integer of 38 or more, and

wherein smaller circular areas positioned at the outermost periphery of the N smaller circular areas inside the mounting area
are set in contact with a circumferential edge defining the mounting area.

US Pat. No. 9,902,003

MACHINING DEVICE AND MACHINING METHOD

CITIZEN WATCH CO., LTD., ...

1. A machining apparatus comprising:
a cutter which includes a plurality of blade parts that are disposed side by side along an axis, each of the blade parts being
formed in the shape of a respective ring around a peripheral surface of the cutter, wherein the cutter is driven to rotate
about the axis;

a workpiece holder which holds a workpiece rotatably;
a cutter driver which moves the cutter relative to the workpiece along an axial direction of the cutter along the axis; and
a controller, wherein
an external shape of a gear or a shaft having a gear-shaped cross-section is formed on the peripheral surface of the workpiece
by synchronizing the rotation of the workpiece with the relative movement of the cutter and the workpiece and by pressing
the cutter onto the workpiece while rotating the cutter,

the controller is configured to cause the cutter driver to drive the cutter to rotate in one direction around the axis and
to reciprocate relative to the workpiece in two opposite directions along the axis, and

the controller is configured to cause the workpiece holder to rotate the workpiece in accordance with the reciprocation of
the cutter such that the controller is configured to cause the workpiece holder to rotate in a forward direction when the
cutter is moving in one of the directions along the axis, and is configured to cause the workpiece holder to rotate the workpiece
in a reverse direction when the cutter is moving in the other direction along the axis, such that cutting is performed on
the workpiece so as to form thereon the external shape of a gear or the shaft having a gear-shaped cross-section by placing
each of the blade parts of the cutter in contact with the peripheral surface of the workpiece.

US Pat. No. 9,791,846

NUMERICAL CONTROL DEVICE

Mitsubishi Electric Corpo...

1. A numerical control device by which machining is performed on a machining object while moving a tool and the machining
object relative to each other by two or more drive shafts provided in at least one of the tool and the machining object, the
numerical control device comprising:
an analysis processing unit that obtains a movement command for moving on a curved movement path in a machining program, and
vibration conditions for vibrating along the curved movement path;

a command-movement-amount calculation unit that calculates a command-movement amount that is a movement amount per unit time
according to the movement command;

a vibrational-movement-amount calculation unit that uses the vibration conditions to calculate a vibrational-movement amount
that is a movement amount due to vibrations per the unit time at a time corresponding to the movement command; and

a movement-amount combining unit that combines the command-movement amount with the vibrational-movement amount to calculate
a combined movement amount, and that acquires a target position within the unit time such that the target position, which
has moved from a reference position for calculating the combined movement amount by the combined movement amount, is located
on the curved movement path.

US Pat. No. 9,741,300

LIQUID CRYSTAL APPARATUS

CITIZEN WATCH CO., LTD., ...

1. A liquid crystal apparatus having a liquid crystal panel that uses a ferroelectric liquid crystal, a drive circuit that
supplies driving voltage to the liquid crystal panel, a waveform generation circuit that supplies a waveform signal to the
drive circuit, and a control circuit that controls the waveform generation circuit, the liquid crystal apparatus comprising
a sensor that measures ambient temperature, wherein
the drive circuit, in a first frame of the driving voltage, outputs during a first interval, a first voltage that is positive
and outputs during a second interval that is longer than the first interval, a second voltage that is positive,

the drive circuit, in a second frame, outputs during the first interval, the first voltage that is negative and outputs during
the second interval that is longer than the first interval, the second voltage that is negative,

the control circuit varies the first voltage and the second voltage according to a temperature measured by the sensor,
the control circuit generates from temperature characteristics of a response speed of the liquid crystal panel and of a switching
angle of the ferroelectric liquid crystal, a table of the first voltage and the second voltage for obtaining a given response
speed and switching angle, refers to the table according to the measured temperature, and determines the first voltage and
the second voltage, and

the table is structured having values of the first voltage and the second voltage at a given temperature step, and in a temperature
region lower than a temperature at which the first voltage and the second voltage determined by the table become equivalent,
when the measured temperature is between temperature steps of the table, a voltage value of a temperature step on a low temperature
side is selected as the first voltage, and a voltage that corresponds to the measured temperature is employed as the second
voltage.

US Pat. No. 9,709,959

ELECTRIC TIMEPIECE WITH SOLAR CELL

Citizen Watch Co., Ltd., ...

1. An electric timepiece with a solar cell comprising:
a dial;
a light permeable dial trim ring disposed to surround a center portion of the dial, the dial trim ring including at least
a bottom and an outside surface; and

a solar cell disposed outside the outside surface to face the outside surface, wherein the dial trim ring includes a first
surface at least in a part of the outside surface and a second surface at least in a part of the bottom,

a sum of a first angle at which the first surface inclines toward the center portion of the dial as going from the dial in
a height direction and a second angle at which the second surface inclines downward in the height direction as going from
the center portion exceeds 0 degree, and

a different color member having a color different for that of a light-receiving surface of the solar cell is provided to face
the second surface.

US Pat. No. 9,616,500

GUIDE BUSH ADJUSTING DEVICE

CITIZEN WATCH CO., LTD., ...

1. A guide bush adjusting device, comprising:
a cylindrical body housing a guide bush;
a mobile body configured to be displaceable relative to the cylindrical body; and
a fixing device configured to releasably fix the mobile body to the cylindrical body;
wherein the guide bush is connected to the mobile body so as to be moveable relative to the cylindrical body by displacement
of the mobile body to adjust an inner diameter of the guide bush;

wherein the mobile body includes:
a connection member connected to the guide bush; and
an operation member to be releasably fixed to the cylindrical body, and configured to displace the connection member;
wherein the connection member and the operation member are connected together by an engagement section including a recessed
portion and a projecting portion loosely fitted to each other such that the operation member is displaced without displacing
the connection member when the operation member is fixed to the cylindrical body by the fixing device.

US Pat. No. 9,606,515

SATELLITE RADIO-CONTROLLED WATCH

CITIZEN HOLDINGS CO., LTD...

1. A satellite radio-controlled watch which adjusts time based on a satellite signal transmitted from a satellite, comprising:
a receiver configured to receive the satellite signal;
a solar battery;
a generated electricity amount detecting unit configured to sequentially detect a received light amount of light received
by the solar battery; and

a controller configured to have functions of:
calculating a received light variation which is an amount of change of the received light amount;
judging whether the received light amount exceeds a first threshold which stands for that the satellite radio-controlled watch
is outdoor or not;

judging whether the received light variation exceeds a second threshold which stands for change in posture of the satellite
radio-controlled watch; and

controlling the receiver to start an operation of receiving the satellite signal in case that the received light amount is
judged to exceed the first threshold and the received light variation is judged to exceed the second threshold.

US Pat. No. 9,597,902

PRINTER

Citizen Watch Co., LTD., ...

1. A printer comprising:
a paper path that guides paper used as a recording object through a predetermined path;
a conveyance mechanism that in a predetermined direction, conveys the paper guided through the paper path;
a sensor that includes a pair of sensor elements arranged to oppose each other across the paper path and to be movable along
a direction orthogonal to a direction of conveyance of the paper by the conveyance mechanism; and

a recording unit disposed on the paper path to perform a recording operation with respect the paper conveyed through the paper
path by the conveyance mechanism, based on a result of detection by the sensor, wherein

the sensor elements in the sensor are respectively interlinked with a guide unit via an elastic member biased in a direction
of coming into contact with the guide unit that forms a wave shape along the orthogonal direction and is formed on a frame
supporting the conveyance mechanism and the recording unit, the elastic member elastically deforming according to the wave
shape of the guide unit,

the sensor elements are disposed to be moveable along the guide unit by elastic deformation of the elastic member according
to position along the orthogonal direction,

the guide unit corresponding to one sensor element of the sensor and the guide unit corresponding to another sensor element
of the sensor respectively form the wave shape protruding and receding at same positions along the orthogonal direction.

US Pat. No. 10,115,541

SWITCH COMPONENT, PUSH SWITCH, ELECTRONIC DEVICE INCLUDING PUSH SWITCH

CITIZEN ELECTRONICS CO., ...

1. A switch component comprising:a metallic spring plate comprising an outer peripheral edge and at least one pair of protrusions protruding from the outer peripheral edge; and
a cover of rubber covering at least one part of an upper surface of the metallic spring plate and comprising at least one pair of supporting portions that support the metallic spring plate,
the at least one pair of supporting portions supporting the at least one pair of protrusions of the metallic spring plate from below.

US Pat. No. 9,985,182

LIGHT-EMITTING APPARATUS AND COLOR-MATCHING APPARATUS

CITIZEN ELECTRONICS CO., ...

1. A light-emitting apparatus comprising:a board;
a resin frame fixed on the board;
a plurality of sets of light-emitting elements which are mounted in a region on the board surrounded by the resin frame, wherein the light-emitting elements configuring each of the sets are connected in series to each other;
a plurality of pairs of connection electrodes which are provided on the board, and electrically connected to the plurality of sets of light-emitting elements and capable of supplying a drive current selectively to some of the plurality of sets of light-emitting elements; and
a sealing resin which comprises a phosphor mixed therein and excited by light from the plurality of sets of light-emitting elements, and is filled in such a way as to bury the region on the board surrounded by the resin frame, to seal integrally the plurality of sets of light-emitting elements with a single sealing resin,
wherein a thickness of the sealing resin immediately above the plurality of sets of light-emitting elements differs for the respective sets, and thereby, a chromaticity of light emitted from the sealing resin differs when each of the sets of light-emitting elements emits the light singly,
wherein the light-emitting elements within each of the sets are placed at the same depth from an upper surface of the sealing resin, and the light-emitting elements of different sets are placed at different depths from the upper surface of the sealing resin.

US Pat. No. 9,869,011

HARD DECORATIVE MEMBER HAVING GRAY-TONE LAYER

CITIZEN WATCH CO., LTD., ...

1. A hard decorative member, comprising a base and a hard decorative coating film layered on the base, wherein
the hard decorative coating film comprises a gray-tone layer comprising a compound formed by a reaction of an alloy of Ti
and one or two or more metals M2 selected from Nb, Ta, and V with a non-metallic element comprising at least carbon;

an amount of Ti contained in the gray-tone layer is 20 to 90 mass % in a total of Ti and the metal M2 of 100 mass %;
the gray-tone layer has a hardness of HV1500 or more; and
in the gray-tone layer, a difference between a maximum value and a minimum value is 10% or less in reflectance measurement
in a visible region (360 to 740 nm), and lightness L* is 60 a difference between a* and b* is 1.5 or less in Lab color space display.

US Pat. No. 9,841,356

COMBUSTION PRESSURE SENSOR

CITIZEN FINEDEVICE CO., L...

1. A combustion pressure sensor formed of a ring-shaped cylindrical body, the combustion pressure sensor detecting combustion
pressure in a combustion chamber of an engine by being attached to an outer periphery of a tip of a functional component attached
to the combustion chamber, comprising:
the ring-shaped cylindrical body forming a sealed space sealed with a ring-shaped diaphragm on one side and with a ring-shaped
support member on an opposite side, the sealed space being defined by an external cylindrical member and an internal cylindrical
member coaxial with respect to each other,

the ring-shaped diaphragm having a ring-shaped pressure receiving part formed on a side closest to the combustion chamber
to receive pressure from outside and a ring-shaped transmitting part formed on a rear surface of the ring-shaped diaphragm,

a pressure transmitting member and a pressure detecting element being provided in the sealed space, and
abutting contact being formed between the ring-shaped transmitting part of the ring-shaped diaphragm and the pressure transmitting
member, between the pressure transmitting member and the pressure detecting element, and between the pressure detecting element
and the ring-shaped support member,

wherein opposite sides of an end of the ring-shaped pressure receiving part on the side closest to the combustion chamber
includes an external end portion and an internal end portion of the ring-shaped pressure receiving part wherein the external
end portion of the ring-shaped pressure receiving part is fixed to an internal peripheral end portion of the external cylindrical
member and the internal end portion is fixed to an external peripheral end portion of the internal cylindrical member,

wherein:
at least any one of that the external cylindrical member has a distal end with an annular recess formed on the internal peripheral
end portion and that the internal cylindrical member has a distal end with an annular recess formed on the external peripheral
end portion,

at least any one of that the external end portion of the ring-shaped pressure receiving part is fixed to the annular recess
formed on the internal peripheral end portion of the external cylindrical member and that the internal end portion of the
ring-shaped pressure receiving part is fixed to the annular recess formed on the external peripheral end portion of the internal
cylindrical member, and

the ring-shaped pressure receiving part extends from the distal end of the external end portion and the distal end of the
internal end portion.

US Pat. No. 9,672,998

PUSH SWITCH

CITIZEN WATCH CO., LTD., ...

1. A push switch comprising:
a substrate having a L-shaped cross section and wherein said substrate has a front surface located perpendicular to a mounting
surface of a mounting substrate at a side edge of the mounting substrate which does not have a cutout thereof, a back surface
for mounting on the mounting substrate and a side face;

an accommodating recess provided on said front surface;
a center contact provided so as to be substantially centralized in said accommodating recess;
a pair of peripheral contacts each provided at a circumferential edge of said accommodating recess;
a movable contact spring constructed so as to extend across said pair of peripheral contacts and designed to be brought into
contact with said center contact when pressed;

a protrusion provided on a front surface of said movable contact spring; and
a connection pad provided on said mounting surface and electrically connected to the mounting substrate, wherein
a part of said back surface is located at the side edge of the mounting substrate,
a portion of the mounting substrate is located on a side of said protrusion and an inner corner portion of said L-shaped cross
section of said substrate is located at the side edge of the mounting substrate so that the force applied to press said protrusion
is received by the mounting substrate, and

said substrate is located so that a lower end of said substrate at said front surface side is flush with a lower end of the
mounting substrate.

US Pat. No. 9,630,253

POLYGON MACHINING DEVICE AND POLYGON MACHINING METHOD

CITIZEN WATCH CO., LTD., ...

2. A polygon machining method for carrying out machining by a tool other than a polygon cutter on a workpiece gripped by a
main shaft after carrying out first polygon machining by the polygon cutter that is mounted to a tool spindle and for carry
outing second polygon machining by the polygon cutter after the machining, the method comprising:
a synchronization stopping step of stopping the main shaft in a predetermined fixed rotation position in a state where the
main shaft and the tool spindle are synchronously rotated at the time of the first polygon machining when the first polygon
machining ends;

a synchronization releasing step of releasing synchronization between the main shaft and the tool spindle when the machining
after the first polygon machining starts;

a main shaft stopping step of stopping the main shaft in the fixed rotation position when the machining after the first polygon
machining ends; and

a synchronization starting step of synchronously rotating the main shaft and the tool spindle when the second polygon machining
starts,

wherein the polygon machining method is configured so as to end the first polygon machining in a state where the synchronization
stopping step is in operation, to start the machining by operating the synchronization releasing step, to perform the machining
after the first polygon machining in a phase unrelated to phases of the first and second polygon machining, to end the machining
after the first polygon machining in a state where the main shaft stopping step is in operation, and to carry out the second
polygon machining in a predetermined phase with respect to the first polygon machining by operating the synchronization starting
step.

US Pat. No. 9,893,249

LIGHT-EMITTING DEVICE

CITIZEN ELECTRONICS CO., ...

1. A light-emitting device comprising:
a base comprising:
an upper surface; and
a mounting area;
a substrate disposed on the upper surface of the base, the substrate comprising an opening, the mounting area being exposed
from the opening of the substrate;

at least one light-emitting element disposed on the mounting area of the base;
a filler disposed around the light-emitting element; and
a sealing resin body comprising a phosphor, the sealing resin body being configured to seal the light-emitting element and
the filler,

wherein the filler comprises a dummy element having a same shape as the at least one light-emitting element, the dummy element
comprising at least one material among sapphire and silicone, the sapphire and the silicone comprising a light-transmitting
property.

US Pat. No. 10,001,672

SIDE EDGE PLANAR LIGHTING UNIT

CITIZEN ELECTRONICS CO., ...

1. A side edge planar lighting unit comprising:a light emitting diode;
a light guide plate; and
a transparent flexible resin between the light emitting diode and a light entrance face of the light guide plate, the light emitting diode and the light entrance face of the light guide plate being in close contact with the transparent flexible resin,
wherein the light guide plate comprises a light exit face on a first main surface, a reflective face positioned on a side opposite the light exit face, and a recessed portion in a first side edge;
wherein the recessed portion comprises the light entrance face on a bottom surface, a pair of light entrance side faces facing each other across the light entrance face, and an anti-slip portion comprising an uneven structure on at least one of the light entrance side faces, and
wherein the transparent flexible resin is fitted into the recessed portion of the light guide plate.

US Pat. No. 9,956,624

CHAMFER MACHINING METHOD

CITIZEN WATCH CO., LTD., ...

1. A chamfer machining method for carrying out chamfer machining of an opening edge part of a cross hole formed on a workpiece having an outer peripheral surface that has a cross-sectional shape of a circle or an inner peripheral part that has a cross-sectional shape of a circle, by rotating a tool having a conical cutting blade,wherein chamfer machining is carried out so that a surface having the same width is formed on the opening edge part of the cross hole by controlling at least one of a height of the tool and a position of a rotation axis of the tool, based on the shape of the opening edge part of the cross hole and a conic section that is generated by cutting the cutting blade by a virtual plane that is tangent to the circle, of the outer peripheral surface or the inner peripheral part, at a point which is a machining point on which the tool machines the cross hole, so that the conic section comes into contact with an inner wall of the cross hole at one point.

US Pat. No. 9,886,022

NUMERICAL CONTROL DEVICE

Mitsubishi Electric Corpo...

1. A numerical control device that performs machining on a workpiece while moving a tool and the workpiece relative to each
other along a movement path with vibrations by drive shafts with which the tool or the workpiece is provided, the device comprising:
a phase-difference calculator comprising a processor that calculates, as a phase difference, a time lag in a vibrational backward-moving
position relative to a vibrational forward-moving position generated based on a command block in a machining program from
a ratio between an amplitude of the vibrations and a feed speed of the tool to the workpiece, the ratio being designated for
the movement path;

a movement-path generator that generates the vibrational forward-moving position and the vibrational backward-moving position
as the movement path for each of the drive shafts based on the phase difference;

a vibrational-movement-amount generator that calculates a vibrational-movement amount on the movement path for each of the
drive shafts based on a reference vibration waveform to be superimposed on the movement path; and

a movement-amount combiner that generates a combined movement amount for each of the drive shafts by adding the vibrational-movement
amount to the movement path.

US Pat. No. 9,777,242

LUBRICATING OIL COMPOSITION FOR TIMEPIECE AND TIMEPIECE

CITIZEN WATCH CO., LTD., ...

1. A lubricating oil composition for a timepiece, comprising a lubricant component (A) containing at least one base oil (A1)
selected from a polyol ester (A-1), a paraffin-based hydrocarbon oil (A-2) having 25 or more carbon atoms and an ether oil
(A-3), at least one antiwear agent (B) selected from a neutral phosphate ester and a neutral phosphite ester, and an antioxidant
(C), wherein
the total acid number of the composition is not more than 0.8 mgKOH/g,
the antiwear agent (B) is contained in an amount of 0.1 to 15 parts by mass based on 100 parts by mass of the lubricant component
(A), and the antioxidant (C) is contained in an amount of 0.01 to 3 parts by mass based on 100 parts by mass of the lubricant
component (A), and

the antioxidant (C) comprises both (i) a diphenylamine derivative (C-1) represented by the following general formula (c-1)
and (ii) a hindered amine compound (C-2) represented by the following general formula (c-2),


wherein Rc11 and Rc12 each independently represent a straight-chain or branched alkyl group of 1 to 10 carbon atoms, and p and q each independently
represent an integer of 0 to 5 with the proviso that p and q do not represent 0 at the same time,


wherein Rc21 and Rc22 each independently represent an aliphatic hydrocarbon group of 1 to 10 carbon atoms, and Rc23 represents a divalent aliphatic hydrocarbon group of 1 to 10 carbon atoms.

US Pat. No. 9,664,859

OPTICAL FIBER CONNECTOR, OPTICAL MODULE, AND FABRICATING METHOD THEREOF

CITIZEN WATCH CO., LTD., ...

1. An optical fiber connector comprising:
a mount substrate;
a multicore fiber including a plurality of cores arrayed in the same plane;
a first sub-substrate configured to fix an end part of the multicore fiber between the first sub-substrate and the mount substrate,
and to be bonded on the mount substrate;

a plurality of single-mode fibers including at least the same number of fibers as the plurality of cores of the multicore
fiber; and

a second sub-substrate configured to fix end parts of the plurality of single-mode fibers between the second sub-substrate
and the mount substrate, and to be bonded on the mount substrate,

wherein a relative position between the first sub-substrate and the second sub-substrate is determined, so that the plurality
of cores of the multicore fiber and the plurality of single-mode fibers of the same number as the plurality of cores are optically
coupled, respectively.

US Pat. No. 10,084,122

LIGHT-EMITTING APPARATUS AND METHOD OF MANUFACTURING THE SAME

CITIZEN ELECTRONICS CO., ...

1. A light-emitting apparatus comprising:a mount board constituted by a metal support;
a circuit board provided with an opening and fixed onto the mount board;
a multi-layered film containing silver as a light-reflecting material, the multi-layered film being stacked on the mount board exposed in the opening, exclusive of a portion of the mount board onto which the circuit board is fixed; and
an LED element mounted on the multi-layered film,wherein the mount board has a light reflectance of more than or equal to 95% in a whole emission wavelength region of the LED element.

US Pat. No. 10,026,877

LED MODULE

CITIZEN ELECTRONICS CO., ...

1. An LED module comprising:a mounting substrate;
a first LED group including a plurality of LEDs mounted in a first light-emitting area extending in a first direction on the mounting substrate;
a second LED group including a plurality of LEDs mounted in a second light-emitting area located outside the first light-emitting area;
a first dam material surrounding a periphery of the second light-emitting area;
a first fluorescent resin coating the first LED group and causing the first light-emitting area to emit light having a first color temperature; and
a second fluorescent resin coating at least the second LED group and causing the second light-emitting area to emit light having a second color temperature higher than the first color temperature, and
a current limiting circuit arranged on the mounting substrate, and configured to control light emission of the LEDs included in the first LED group and the second LED group, wherein
the current limiting circuit is adjacent to the first dam material and surrounded by a second dam material,
viscosity of the first fluorescent resin is higher than viscosity of the second fluorescent resin before being cured, and
the first fluorescent resin and the second fluorescent resin are connected directly without intervention of a dam material,
the current limiting circuit is configured to control light emission of the LEDs included in the first LED group and the second LED group so as to enter a first light-emitting state where the LEDs included in the first LED group are caused to emit light and the LEDs included in the second LED group are not caused to emit light, a second light-emitting state where the LEDs included in the first LED group and the second LED group are caused to emit light, and a third light-emitting state where the LEDs included in the first LED group are not caused to emit light and the LEDs included in the second LED group are caused to emit light,
the current limiting circuit comprises an FET whose drain is connected with the first LED group, and whose source is connected with the second LED group, and
the current limiting circuit decreases a current that is supplied to the LEDs included in the first LED group and flows from the drain to the source, as a current that is supplied to the LEDs included in the first LED group and the second LED group increases in the second light-emitting state by changing the voltage between the source and the gate of the FET.

US Pat. No. 9,790,592

DECORATIVE ARTICLE HAVING BLACK HARD COATING FILM

CITIZEN WATCH CO., LTD., ...

1. An article comprising a decorative article,
the decorative article comprising: a base; and a black hard coating film which is formed on the base, and which comprises
diamond-like carbon,

wherein a hydrogen content of a surface, reverse to a surface closer to the base, of the black hard coating film is more than
a hydrogen content of the surface, closer to the base, of the black hard coating film; and the hydrogen content of the surface,
reverse to the surface closer to the base, of the black hard coating film is 30.0 to 75.0 atm %, and

wherein the article comprising the decorative article is a timepiece, a necklace, a pendant, a brooch, or glasses.

US Pat. No. 9,772,484

LIGHT MODULATING DEVICE

CITIZEN WATCH CO., LTD., ...

1. A light modulating device comprising:
a selective diffraction device which generates diffracted light beams of a plurality of orders by diffracting illumination
light into one of a plurality of directions, the illumination light being linearly polarized light having a polarization plane
oriented in a first polarization direction, and which causes a phase difference between the diffracted light beams of the
plurality of orders;

a polarization plane rotating device which rotates the polarization plane of the diffracted light beams of the plurality orders
so as to be oriented in a direction perpendicular to a direction radiating from an optical axis; and

a controller,
wherein the selective diffraction device includes:
a diffractive device which diffracts the illumination light into the plurality of directions;
a shutter device through which the diffracted light beams of the plurality of orders diffracted in the one of the plurality
of directions are allowed to pass; and

a phase modulating device which includes at least one first liquid crystal device for causing a phase difference between the
diffracted light beams of the plurality of orders passed through the shutter device, each of the at least one first liquid
crystal device including a first liquid crystal layer on which the diffracted light beams of the plurality of orders passed
through the shutter device are incident,

wherein the shutter device includes:
a second liquid crystal device which includes a second liquid crystal layer; and
an analyzer which is disposed nearer the phase modulating device than the second liquid crystal device is, and which allows
linearly polarized light having a polarization plane oriented in a second polarization direction among the diffracted light
beams passing through the second liquid crystal device to pass through, while blocking linearly polarized light having a polarization
plane oriented in a direction other than the second polarization direction among the diffracted light beams passing through
the second liquid crystal device, and wherein:

the second liquid crystal layer contains liquid crystal molecules aligned in a direction that bisects an angle that the first
polarization direction makes with the second polarization direction, and

the shutter device allows the diffracted light beams of the plurality of orders diffracted in the one of the plurality of
directions to pass through by applying a predetermined voltage in response to the wavelength of the illumination light across
a sub-region of the second liquid crystal layer through which the diffracted light beams pass, to rotate the polarization
plane of the diffracted light beams passing through the sub-region so as to be oriented in parallel to the second polarization
direction, and

wherein the controller changes the sub-region of the second liquid crystal layer to which the predetermined voltage is applied
when the one of the plurality of directions is changed.

US Pat. No. 9,753,434

WATCH

CITIZEN WATCH CO., LTD., ...

1. A timepiece comprising:
a case member containing a movement of a timepiece;
a bezel rotatably provided in the case member, including an engaged portion;
a restrictor including an engaging portion which prevents the bezel from rotating when engaged with the engaged portion and
allows the bezel to rotate when disengaged from the engaged portion, the restrictor being movable between a restricted position
in which the engaging portion is engaged with the engaged portion and a release position in which the engaging portion is
disengaged from the engaged portion; and

a holding mechanism which switchably holds the restrictor between a held state and a non-held state, the held state in which
the restrictor is held in the restricted position, the non-held state in which the restrictor is moved to the release position,

wherein the holding mechanism includes two operation input units to which independent pressing operation forces are respectively
applied, and a release mechanism which moves the restrictor by moving a moving amount independent from a moving amount of
the operation input units to switch the restrictor from the held state to the non-held state irrespective of a continuance
of applying the pressing operation forces once the pressing operation forces are concurrently applied to the two operation
input units.

US Pat. No. 10,433,381

LED DRIVE CIRCUIT

CITIZEN WATCH CO., LTD., ...

1. An LED drive circuit comprising:a bridge rectifier circuit;
an LED string made up by a plurality of LEDs being connected in series and supplied with a current from the bridge rectifier circuit; and
a current limiting circuit that has a current input terminal and a current output terminal connected onto a path that starts from the bridge rectifier circuit, and returns to the bridge rectifier circuit via the LED string, and a switch element having one end as the current input terminal and another end as the current output terminal, and having a control terminal, which limits a current that flows through the LED string to an upper limit current value or smaller, and further, decreases the current that flows through the LED string in accordance with an amount of rise in the voltage when the voltage at the current input terminal viewed from the current output terminal rises, by controlling a voltage applied to the control terminal of the switch element, and the upper limit current value is a current value flowing through the LED string when a threshold voltage, at which all of the LEDs of the plurality of LEDs included in the LED string turn on, is applied to the LED string.

US Pat. No. 10,068,723

SWITCH AND METHOD FOR MANUFACTURING SAME

CITIZEN ELECTRONICS CO., ...

1. A switch comprising:a first molded resin molded integrally with a plurality of fixed contacts, the first molded resin including a first through hole formed under the plurality of fixed contacts and a first projection portion formed on a bottom surface of the first molded resin;
a movable member disposed above the first molded resin to bring the plurality of fixed contacts into and out of electrical contact with each other; and
a second molded resin molded so as to cover at least the bottom surface of the first molded resin, the second molded resin including a second projection portion filling the first through hole and a second through hole filled with the first projection portion, the second through hole being formed in a bottom surface of the second molded resin,
wherein the bottom surface of the second molded resin is a flat surface on which a resin boundary between the first molded resin and the second molded resin is formed.

US Pat. No. 9,991,068

PUSH-BUTTON SWITCH

CITIZEN ELECTRONICS CO., ...

1. A push-button switch comprising:a housing accommodating a switch contact, the housing comprising a front surface having a front-surface center portion and front-surface side portions located on both sides of the front-surface center portion with stepped portions interposed between the front-surface center portion and the front-surface side portions, the front-surface center portion protruding further forward than the front-surface side portions;
a push-button member disposed in the front-surface center portion of the housing and configured to press the switch contact; and
a holding frame of a channel shape that covers outer surfaces of the housing, both ends of the holding frame being secured to the front-surface side portions of the housing, wherein
the front-surface side portions of the housing include engagement protrusions disposed thereon, each of the engagement protrusions including a shaft portion and an enlarged portion,
the shaft portions protrude outwardly from the front-surface side portions, and the enlarged portions are disposed on distal ends of the shaft portions,
the ends of the holding frame have engagement grooves formed therein, the engagement grooves configured to engage with the engagement protrusions, and
the holding frame is secured to the housing with the shaft portions of the engagement protrusions fitted in the engagement grooves.

US Pat. No. 9,922,609

LIQUID CRYSTAL APPARATUS

CITIZEN WATCH CO., LTD., ...

1. A liquid crystal apparatus having a liquid crystal panel that uses a ferroelectric liquid crystal, a drive circuit that
supplies driving voltage to the liquid crystal panel, a waveform generation circuit that supplies a waveform signal to the
drive circuit, and a control circuit that controls the waveform generation circuit, the liquid crystal apparatus comprising
a sensor that measures ambient temperature, wherein
the drive circuit, in a first frame of the driving voltage, outputs during a first interval, a first voltage that is positive
and outputs during a second interval that is longer than the first interval, a second voltage that is positive,

the drive circuit, in a second frame, outputs during the first interval, the first voltage that is negative and outputs during
the second interval that is longer than the first interval, the second voltage that is negative,

the control circuit varies the first voltage and the second voltage according to a temperature measured by the sensor,
the control circuit generates from temperature characteristics of a response speed of the liquid crystal panel and of a switching
angle of the ferroelectric liquid crystal, a table of the first voltage and the second voltage for obtaining a given response
speed and switching angle, refers to the table according to the measured temperature, and determines the first voltage and
the second voltage, and

the table is structured having values of the first voltage and the second voltage at a given temperature step, and in a temperature
region higher than a temperature at which the first voltage and the second voltage determined by the table become equivalent,
a voltage that corresponds to the measure temperature is employed as the second voltage and the first voltage is set to a
voltage value equivalent to the second voltage.

US Pat. No. 10,118,419

SHEET DETECTION DEVICE AND PRINTER

CITIZEN WATCH CO., LTD., ...

1. A sheet detection device comprising:a sheet guide between a sheet feeding opening into which a sheet is to be inserted and a printing mechanism for printing on the sheet, the sheet guide including a guide surface through which the sheet is to pass;
a sheet detector including an optical sensor configured to detect a predetermined position of the sheet;
an opening defined in the guide surface, the sheet detector being inside the opening and the optical sensor being exposed through the opening; and
a transparent guide cover positioned in the guide surface to cover at least a first border position between the sheet detector and the opening on an upstream side in a sheet transport direction.

US Pat. No. 10,054,509

PRESSURE DETECTION DEVICE

CITIZEN FINEDEVICE CO., L...

1. A pressure detection device comprising:a pressure detection element which receives pressure so as to output a detection signal corresponding to the pressure; and
a processing circuit which processes and outputs the detection signal output from the pressure detection element,
wherein on a circuit board on which a conductor pattern is formed, an integrated circuit including an analog circuit which uses a reference voltage set to a predetermined voltage value as an operation reference and which converts the detection signal into a voltage waveform is mounted, and the processing circuit includes an input circuit which feeds the detection signal to the integrated circuit and a shield pattern which surrounds a region of at least a part of the input circuit and to which the reference voltage is applied.

US Pat. No. 10,056,358

LIGHT-EMITTING MODULE

CITIZEN ELECTRONICS CO., ...

1. A light-emitting module comprising:a substrate;
a dam member disposed on the substrate;
first and second outer electrodes which are strip-shaped conductive patterns disposed under the dam member so as to surround a mounting region surrounded by the dam member on the substrate;
first and second inner electrodes which are strip-shaped conductive patterns disposed on the substrate and dividing the mounting region into a center region and a peripheral region, wherein the first inner electrode is opposed to the second outer electrode and is electrically connected to the first outer electrode, and wherein the second inner electrode is opposed to the first outer electrode and is electrically connected to the second outer electrode;
a first plurality of LED devices mounted on the center region and electrically connected between the first and second inner electrodes;
a second plurality of LED devices mounted on the peripheral region and electrically connected either between the first outer electrode and the second inner electrode or between the second outer electrode and the first inner electrode; and
a phosphor-containing resin for integrally sealing the first and second pluralities of LED devices by being filled into all over the center region and the peripheral region.

US Pat. No. 10,044,289

LED DRIVE CIRCUIT INCLUDING A PLURALITY OF LEDS CONNECTED IN SERIES

CITIZEN WATCH CO., LTD., ...

1. An LED drive circuit having:a rectifying circuit that rectifies an alternating-current voltage and outputs a full-wave rectified voltage;
an LED string including a plurality of LEDs connected in series, in which an anode of an LED in a first stage of the LEDs is connected with a first terminal of the rectifying circuit;
a first switch whose one end is connected to a cathode of an LED in a last stage of the LED string;
a capacitor whose one end is connected to the other end of the first switch;
a second switch that is connected between the one end of the capacitor and the anode of the LED in the first stage of the LED string, and which turns on when the full-wave rectified voltage is lower than a threshold voltage of the LED string and turns off when the full-wave rectified voltage is higher than or equal the threshold voltage;
a third switch that is connected between the cathode of the LED in the last stage of the LED string and a second terminal of the rectifying circuit, and which turns on when the full-wave rectified voltage is lower than a charge start voltage and turns off when the full-wave rectified voltage is higher than or equal to the charge start voltage; and
a current limiting circuit whose current input terminal is connected to an other end of the capacitor and whose current output terminal is connected to the second terminal of the rectifying circuit,whereinthe current limiting circuit has a first FET whose drain is connected to the other end of the capacitor and a first resistor whose one end is connected to a source of the first FET, and
the third switch includes a third FET whose drain is connected to the cathode of the LED in the last stage of the LED string and a third resistor whose one end is connected to a source of the third FET, and an other end of the first resistor is connected to one end of the third resistor and an other end of the third resistor is connected to the second terminal of the rectifying circuit.

US Pat. No. 9,783,758

LUBRICATING OIL COMPOSITION FOR TIMEPIECE AND TIMEPIECE

CITIZEN WATCH CO., LTD., ...

1. A lubricating oil composition for a timepiece, comprising a lubricant component (A) containing at least one base oil (A1)
selected from a polyol ester (A-1), a paraffin-based hydrocarbon oil (A-2) having 25 or more carbon atoms and an ether oil
(A-3), an antiwear agent (B) comprising a neutral phosphite ester (B-2), and an antioxidant (C), wherein
the total acid number of the composition is not more than 0.8 mgKOH/g,
the antiwear agent (B) is contained in an amount of 0.1 to 15 parts by mass based on 100 parts by mass of the lubricant component
(A), and the antioxidant (C) is contained in an amount of 0.01 to 3 parts by mass based on 100 parts by mass of the lubricant
component (A), and

the neutral phosphite ester (B-2) is represented by the following general formula (b-2):

wherein Rb21 to Rb24 each independently represent an aliphatic hydrocarbon group of 10 to 16 carbon atoms, Rb25 to Rb28 each independently represent a straight-chain or branched alkyl group of 1 to 6 carbon atoms, Rb291 and Rb292 each independently represent a hydrogen atom or a straight-chain or branched alkyl group of 1 to 5 carbon atoms, and the total
number of carbon atoms of Rb291 and Rb292 is 1 to 5.

US Pat. No. 10,096,437

KEY SWITCH

CITIZEN ELECTRONICS CO., ...

1. A key switch comprising:a base plate;
a key top above the base plate;
a pair of link members supporting the key top and configured to operate in an interlocked manner to allow the key top to be lifted and lowered with respect to the base plate; and
a switch mechanism disposed between the base plate and the key top and configured to open and close a contact portion of an electric circuit in accordance with lifting and lowering operation of the key top, the switch mechanism comprising:
a sheet-shaped switch member disposed on an upper surface of the base plate and comprising a contact portion of an electric circuit;
a plate-shaped spring member above the contact portion of the electric circuit; and
a housing secured to the base plate and accommodating the plate-shaped spring member.

US Pat. No. 10,043,954

LIGHTING DEVICE WITH A PHOSPHOR LAYER ON A PERIPHERAL SIDE SURFACE OF A LIGHT-EMITTING ELEMENT AND A REFLECTING LAYER ON AN UPPER SURFACE OF THE LIGHT-EMITTING ELEMENT AND ON AN UPPER SURFACE OF THE PHOSPHOR LAYER

CITIZEN ELECTRONICS CO., ...

1. A lighting device comprising:a substrate comprising an upper surface, and at least one pair of electrodes arranged on the upper surface of the substrate;
two or more light-emitting elements each comprising:
a lower surface;
an upper surface;
four peripheral side surfaces;
a first electrode and a second electrode on the lower surface, the first electrode and the second electrode electrically connected to the at least one pair of electrodes of the substrate;
a phosphor layer with a constant width being arranged in contact with the four peripheral side surfaces of the light-emitting element, the phosphor layer comprising an upper surface and four peripheral side surfaces; and
a light-reflecting layer that is arranged in contact with the upper surface of the light-emitting element and the upper surface of the phosphor layer, the light-reflecting layer being arranged to be free from contact with any portion of the four peripheral side surfaces of the phosphor layer;
a light-transmitting cover that is transparent or translucent and arranged above the light-reflecting layers of the two or more light-emitting elements; and
a frame member disposed on the substrate to surround the four peripheral side surfaces of each of the two or more light-emitting elements and comprising two or more openings, each of the two or more openings having at least one of the two or more light-emitting elements arranged therein, the frame member being configured to shield and/or reflect light and comprising a white-colored resin and a light-shielding member buried in the white-colored resin of the frame member.

US Pat. No. 10,025,292

OFFSET NUMBER SETTING DEVICE FOR SETTING AN OFFSET NUMBER FOR A TOOL ATTACHED TO A TURRET SURFACE

Citizen Watch Co., Ltd., ...

1. An apparatus, comprising:a machining tool device, the machining tool device including
a main spindle configured to rotate around an axis line, and
a turret configured to move in an X-direction, a Y-direction, and a Z-direction, the turret including a plurality of turret surfaces extending around a circumference of the turret, each turret surface configured to attach to a separate tool holder, each tool holder including a mounting portion configured to attach to a separate tool; and
an offset number setting device, the offset number setting device including
a display configured to display
a turret surface selection screen to enable operator selection of a particular turret surface of the plurality of turret surfaces,
a tool holder selection screen to enable operator selection of a particular tool holder to be mounted to the particular turret surface, and
an offset number setting screen to enable operator setting of a particular offset number associated with a tool to be mounted on the particular tool holder; and
a data processor configured to process information received based on operator interaction with each screen of the turret surface selection screen, the tool holder selection screen, and the offset number setting screen, such that the data processor is configured to
associate the particular turret surface and a particular mounting portion of the particular tool holder with the particular offset number based on receiving the operator selection of the particular turret surface via the turret surface selection screen, receiving the operator selection of the particular tool holder, and receiving the operator selection of the particular offset number,
generate a tool selection number that is a representation of the association of the particular turret surface, the particular tool holder, and the particular mounting portion with the particular offset number,
control one or more motors to move the turret in response to selection of the tool selection number, such that the particular turret surface is positioned in a particular set position, and the turret is moved to correct a position of the particular tool in relation to a set X-axis, Y-axis, and Z-axis in accordance with the particular offset number,
perform processing of a material held by the main spindle, using the particular tool attached to the particular tool holder and positioned in accordance with the particular offset number, and
implement a display linkage unit to
implement a turret surface selection screen display unit to cause the display to display the turret surface selection screen,
implement a tool holder selection screen display unit to cause the display to display the tool holder selection screen based receiving the operator selection of the particular turret surface via the turret surface selection screen, and
implement an offset number setting screen display unit to cause the display to display the offset number setting screen based on receiving the operator selection of the particular tool holder.

US Pat. No. 9,993,903

WORKPIECE SUPPLY DEVICE AND MACHINE TOOL

CITIZEN WATCH CO., LTD., ...

1. A workpiece supply device comprising:a workpiece holder that holds a workpiece to be supplied to a machine tool including a supplying area and a machining area of the workpiece, the workpiece holder entering and leaving both of the supplying area and the machining area through an opening part provided in a dividing wall between the supplying area and the machining area to transfer the workpiece with the machine tool;
a slider that moves the workpiece holder between the supplying area and the machining area;
a cover member that moves integrally with the workpiece holder and closes the opening part when the workpiece holder moves in the supplying area; and
a biasing member that biases the cover member in a closing direction of the opening part, wherein the biasing member is configured to press the cover member to the dividing wall to close the opening part by the cover member such that the workpiece holder holds the workpiece in the supplying area while the workpiece is machined in the machining area,
wherein:
the workpiece holder is connected to the cover member to reciprocate relative to the cover member, and is biased by the biasing member in a direction toward the cover member, and
the workpiece holder moves in the supplying area against a biasing force of the biasing member, and holds the workpiece disposed in the supplying area with the opening part being closed by the cover member.

US Pat. No. 9,904,252

TIMEPIECE

CITIZEN WATCH CO., LTD., ...

1. A timepiece comprising:
a hand wheel configured to rotate around an axial center thereof;
a motor coupled with the hand wheel and configured to rotate the hand wheel;
a detection wheel configured to rotate around an axial center thereof, associated with rotation of the hand wheel;
a detection hole that penetrates the detection wheel in a direction along the axial center;
a photo sensor including:
a light emitting element that emits light to a detection position on an orbit along which the detection hole moves associated
with the rotation of the detection wheel, and

a light receiving element that is disposed facing the light emitting element with the detection wheel therebetween; and
a control unit configured to drive and control the motor, wherein
the control unit determines one of a first state and a second state different from the first state, based on an amount of
light received by the light receiving element each time the motor is driven a predetermined number of steps,

the control unit identifies a switching position at which the first state is switched to the second state when the control
unit consecutively determines the first state for a first number of steps and thereafter consecutively determines the second
state for a second number of steps, and

the control unit sets a position one step shifted from the identified switching position to be a reference position and stores
information concerning the reference position to a storage unit.

US Pat. No. 10,096,439

SPRING PLATE, PUSH SWITCH INCLUDING SPRING PLATE, AND ELECTRONIC DEVICE INCLUDING PUSH SWITCH

CITIZEN ELECTRONICS CO., ...

1. A push switch comprising:a spring plate comprising a central portion, a leg portion projecting outward from an edge of the central portion, the leg portion comprising a hollow portion, the hollow portion being positioned within an outline of the leg portion in a top plan view and at a lowest position of the spring plate;
a first electrode arranged below the central portion of the spring plate; and
a second electrode on which the hollow portion of the leg portion of the spring plate is arranged,
wherein the hollow portion has a cup shape and comprises a bottom and a surrounding surface that surrounds the bottom.

US Pat. No. 10,081,087

MACHINE TOOL AND CONTROL APPARATUS OF THE MACHINE TOOL

Citizen Watch Co., Ltd., ...

1. A machine tool comprising:a workpiece holding unit to hold a workpiece;
a tool rest to hold a cutting tool for cutting the workpiece;
a feeding unit to feed the cutting tool toward the workpiece in a predetermined feeding direction via relative movement between the workpiece holding unit and the tool rest;
a repetitive movement unit to reciprocally vibrate the workpiece holding unit and the tool rest in a mutually relative manner by repeating the relative movement in the feeding direction; and
a rotating unit to relatively rotate the workpiece and the cutting tool;
wherein the machine tool is capable of machining the workpiece via the relative rotation between the workpiece and the cutting tool and via the feeding of the cutting tool toward the workpiece with the reciprocal vibration; and
wherein the repetitive movement unit is configured so that the cutting tool performs one vibration with respect to multiple relative rotations between the workpiece and the cutting tool and so that a rotation angle of the relative rotation during a backward movement is smaller than a rotation angle of the relative rotation during a forward movement in one reciprocal vibration.

US Pat. No. 10,010,944

TOOL POST FOR MACHINE TOOL

CITIZEN WATCH CO., LTD., ...

1. A tool post for a machine tool, the tool post comprising:a supporting member that movably supports a tool;
a driving force transmission part that is disposed between the supporting member and the tool to transmit driving force to the tool, the driving force transmission part comprising a first engaging member that is located at a side of the supporting member, and a second engaging member that is located at a side of the tool, and the engaging members engaging in accordance with a movement of the tool, the first engaging member provided to be biased via a biasing force to an engaging posture in which both of the engaging members are capable of engaging; and
a releasing member that is disposed between the side of the tool and the side of the supporting member, and that releases the first engaging member from the engaging posture by pressing the first engaging member against the biasing force,
wherein a driving force is transmitted to the tool via the driving force transmission part by moving the tool to a predetermined position where the both of the engaging members engage, and
wherein the releasing member is disposed to release the first engaging member from the engaging posture by pressing the first engaging member against the biasing force during the movement of the tool toward the predetermined position, so that the first and second engaging members are disengaged, and wherein the releasing member is disposed to release the pressing when the tool reaches the predetermined position so that both of the engaging members engage.

US Pat. No. 9,981,481

THERMAL TRANSFER PRINTER AND PRINTING METHOD USING SAME

CITIZEN WATCH CO., LTD., ...

11. A method of printing an image using a thermal transfer printer, comprising the steps of:generating a first correspondence between each of a plurality of heating elements in a thermal head and a correction amount of energy applied to the heating element, from a density distribution of a test image printed based on image data of a single tone;
correcting energy applied to each of the heating elements by an amount obtained by multiplying the correction amount for the heating element obtained from the first correspondence by an adjustment coefficient obtained from a second correspondence between a density of an image to be printed and the adjustment coefficient of the correction amount according to a density of an image to be newly printed; and
transferring ink onto a sheet by causing the plurality of heating elements to generate heat with the corrected energy;wherein the step of generating includes the steps of:printing the test image with the thermal head;
scanning the printed test image;
calculating an average density distribution on the scanned test image, wherein the average density distribution is calculated by deriving an average density of the scanned test image in a sub-scanning direction of printing for a position corresponding to each of the heating elements arranged in a main scanning direction of printing and further deriving a moving average of the average density in the main scanning direction; and
determining the correction amount for each of the plurality of heating elements on the basis of the average density distribution.

US Pat. No. 9,977,293

ELECTRONIC EYEGLASS AND LIQUID CRYSTAL LENS PRODUCTION METHODS

CITIZEN WATCH CO., LTD., ...

1. A method for producing a liquid crystal lens having a first transparent substrate and a second transparent substrate, the method comprising the steps of:placing an uncured first photosetting resin on at least one of said first and second transparent substrates so as to surround an inside space thereon;
dropping a liquid crystal material into said inside space enclosed by said uncured first photosetting resin;
bonding in a vacuum atmosphere, said first transparent substrate and said second transparent substrate by contacting said uncured first photosetting resin with the other of said first and second substrates so that said liquid crystal material is not leaked outside of said inside space;
curing said uncured first photosetting resin so as to bond a cured first photosetting resin to said first transparent substrate, and said cured first photosetting resin to the second transparent substrate, so that said liquid crystal material is sealed into said inside space:
after the step of curing said uncured first photosetting resin, filling an uncured second photosetting resin into a space created outside said cured first photosetting resin; and
curing said second photosetting resin.

US Pat. No. 10,182,486

LED DRIVE CIRCUIT

Citizen Watch Co., Ltd., ...

1. An LED drive circuit comprising:a variable constant current source having a current output terminal pair;
a first LED string having a plurality of series-connected LEDs and configured to emit a first color of light;
a second LED string having a plurality of series-connected LEDs and configured to emit a second color of light which is different from the first color of light; and
a current limiting circuit containing a current sensing element which detects a current flowing through the first LED string and a current flowing through the second LED string, and a switching element, wherein
the first LED string and the second LED string are connected in parallel with each other to the variable constant current source,
a first threshold voltage of the first LED string is larger than a second threshold voltage of the second LED string so that the second LED string only emits the light and the first LED string does not emit light when a voltage between the current output terminal pair is smaller than the first threshold voltage, and
the current limiting circuit controls the switching element so that the current flowing through the second LED string is limited and the first LED string only emits the light and the second LED string does not emit light when the current detected by the switching element is larger than a threshold current.

US Pat. No. 9,885,617

CONTACT TYPE INTERNAL THERMOMETER

CITIZEN WATCH CO., LTD., ...

1. A contact type internal thermometer, comprising:
a measurement surface that is brought into contact with a surface to be measured of a measurement object so as to calculate
an internal temperature of the measurement object;

a first temperature sensor stack comprising a first measurement surface side temperature sensor arranged on a measurement
surface side of a first thermal resistor, and a first back surface side temperature sensor arranged on a back surface side
of the first thermal resistor;

a second temperature sensor stack comprising a second measurement surface side temperature sensor arranged on a measurement
surface side of a second thermal resistor, and a second back surface side temperature sensor arranged on a back surface side
of the second thermal resistor; and

a controller configured to calculate the internal temperature of the measurement object based on measurement results of the
first measurement surface side temperature sensor, the first back surface side temperature sensor, the second measurement
surface side temperature sensor, and the second back surface side temperature sensor,

wherein the controller has a first mode of calculating the internal temperature based on a heat conduction equation in a non-steady
state, and a second mode of calculating the internal temperature based on a heat conduction equation in a steady state,

wherein a heat flux in the steady state is constant,
wherein the controller detects the steady state and the non-steady state to switch between the first mode and the second mode.

US Pat. No. 10,189,091

MACHINE TOOL

CITIZEN WATCH CO., LTD., ...

1. A machine tool comprising:a turret including, on a circumferential surface thereof, a plurality of tool attachment parts; and
a main spindle that holds a workpiece, wherein
the main spindle is provided in a movable manner along an axis line,
the turret is provided in a turnable manner to index each of the tool attachment parts relative to the main spindle,
the turret includes a predetermined cutout part,
a movement path for the main spindle to pass through the turret is formed by turning the turret such that the cutout part faces the main spindle,
the cutout part includes one plane along the axis line,
the turret includes, on a circumferential surface thereof except for on the cutout part, the tool attachment parts,
the turret includes, as seen in an axis line direction, a shape in which a part of a regular polygon centered at a turning center is linearly cut off by an edge of the cutout part,
the edge is, as seen in the axis line direction, a straight line in a direction crossing each side of the regular polygon, and
each tool attachment part is disposed according to each side left in the regular polygon cut off by the cutout part.

US Pat. No. 10,181,553

SEMICONDUCTOR DEVICE AND METHOD FOR PRODUCING THE SAME

CITIZEN ELECTRONICS CO., ...

1. A method for producing a semiconductor device, the semiconductor device comprising:a metal substrate; and
a semiconductor element configured to be mounted on the metal substrate,
the method comprising:
forming an electrode separating groove in an element mounting position on a main surface of the metal substrate;
forming a metal substrate holding groove around the element mounting position;
injecting an electrode separating resin in the electrode separating groove;
injecting a metal substrate holding resin in the metal substrate holding groove;
flip-chip mounting the semiconductor element to extend over the electrode separating groove; and
grinding the metal substrate from a surface of the metal substrate opposite to the main surface of the metal substrate up to a position reaching the electrode separating groove and the metal substrate holding groove.

US Pat. No. 10,005,291

THERMAL TRANSFER PRINTER AND METHOD FOR CONTROLLING THE SAME

CITIZEN WATCH CO., LTD., ...

1. A method for controlling a thermal transfer printer, comprising the steps of:dividing color image data to be printed into image data of two sub-images containing an overlapping region and having edges that coincide for each of a plurality of color inks transferred to paper;
converting color values of the color image data in the overlapping region by using a color conversion factor group created in advance for a plurality of different positions on the overlapping region so as to cancel out a color change that occurs in the overlapping region when the two sub-images are transferred with one overlapping the other;
correcting the image data of the two sub-images by adjusting converted color values in the overlapping region by using a correction factor for print density at each position on the overlapping region; and
forming a color image to be printed by sequentially transferring the two sub-images in accordance with corrected image data of the two sub-images so that the two sub-images overlap at the overlapping region.

US Pat. No. 9,995,889

MOUNTING COMPONENT FOR OPTICAL FIBER, OPTICAL MODULE, AND OPTICAL MODULE MANUFACTURING METHOD

CITIZEN WATCH CO., LTD., ...

1. A mounting component formed from silicon for optically coupling a laser device to an optical fiber by being bonded to a mounting substrate on which the laser device is mounted, comprising:a silicon-on-insulator layer contained in the mounting component;
a groove portion for fixedly holding the optical fiber so that a core of the optical fiber is positioned at a predetermined depth with respect to a bonding surface to be bonded to the mounting substrate; and
a recessed portion, formed continuous with the groove portion, for accommodating the laser device, wherein
a thickness of the mounting component, measured in a direction perpendicular to the bonding surface, is chosen so that a position of the laser device can be detected using an infrared transmission image when the laser device is accommodated in the recessed portion by placing the bonding surface in contact with the mounting substrate,
the groove portion is formed on the bonding surface and has a bottom surface as deep as the silicon-on-insulator layer, and
the recessed portion is formed on the bonding surface and has a bottom surface deeper than the silicon-on-insulator layer.

US Pat. No. 9,979,586

PHASE MODULATION DEVICE AND LASER MICROSCOPE

CITIZEN WATCH CO., LTD., ...

1. A phase modulation device for correcting a wave front aberration generated by an optical system including an objective lens disposed on an optical path of a light flux of light to be emitted from a light source, comprising:a first phase modulation element which includes a plurality of first electrodes disposed to impart to the light flux a first amount of phase modulation to cancel a first phase distribution in accordance with a first ratio of a second aberration component of the wave front aberration to a first aberration component of the wave front aberration, and modulates a phase of the light flux in accordance with a respective first voltage applied to each of the plurality of first electrodes;
a second phase modulation element which includes a plurality of second electrodes disposed to impart to the light flux a second amount of phase modulation to cancel a second phase distribution in accordance with a second ratio of the second aberration component of the wave front aberration to the first aberration component of the wave front aberration, the second ratio being smaller than the first ratio, and modulates a phase of the light flux in accordance with a respective second voltage applied to each of the plurality of second electrodes; and
a control circuit which controls the first voltages applied to the plurality of first electrodes and the second voltages applied to the plurality of second electrodes in accordance with an optical path length from the objective lens to a light focusing position of the light flux.

US Pat. No. 10,173,293

MACHINE TOOL AND CONTROL APPARATUS OF THE MACHINE TOOL

Citizen Watch Co., Ltd., ...

1. A machine tool comprising:a workpiece holding unit to hold a workpiece;
a tool rest to hold a cutting tool for cutting the workpiece;
a feeding unit to feed the cutting tool toward the workpiece in a predetermined feeding direction via relative movement between the workpiece holding unit and the tool rest;
a repetitive movement unit to reciprocally vibrate the workpiece holding unit and the tool rest in a mutually relative manner by repeating the relative movement in the feeding direction; and
a rotating unit to relatively rotate the workpiece and the cutting tool;
wherein the machine tool is capable of machining the workpiece via the relative rotation between the workpiece and the cutting tool and via the feeding of the cutting tool toward the workpiece with the reciprocal vibration; and
wherein the repetitive movement unit is configured so that the cutting tool performs one vibration with respect to multiple relative rotations between the workpiece and the cutting tool and so that a rotation angle of the relative rotation during a backward movement is smaller than a rotation angle of the relative rotation during a forward movement in one reciprocal vibration.

US Pat. No. 10,256,055

PUSH SWITCH AND ELECTRONIC DEVICE INCLUDING PUSH SWITCH

CITIZEN ELECTRONICS CO., ...

1. A push switch comprising:a substrate comprising:
a first electrode and a second electrode arranged on an upper surface of the substrate, the first electrode being arranged at a center of the upper surface of the substrate, and the second electrode being arranged around the first electrode, and
a recess in a center of a lower surface of the substrate, the recess being positioned under the first electrode so as to overlap the first electrode in a plan view, and the recess not passing through the substrate;
a resilient member being arranged on the second electrode and over the first electrode, the resilient member including a dome shape that bulges at a center of the resilient member; and
a sheet arranged over the resilient member and including a projection arranged on a surface of the sheet,
wherein the recess has a center point that is aligned with a center point of the dome shape of the resilient member and a center point of the projection in the plan view.

US Pat. No. 10,213,887

TURRET TOOL POST AND MACHINE TOOL EQUIPPED WITH TURRET TOOL POST

CITIZEN WATCH CO., LTD., ...

1. A turret tool post of a machine tool, comprising:a post body;
a turret turnably supported on the post body, the turret including a circumferential surface comprising a plurality of turret faces;
a turret turning shaft and a turret turning gear configured to turn the turret about a first axis;
a plurality of tool attachments attached to the plurality of turret faces, the plurality of turret faces each being configured to be attachable with a respective tool attachment, at least one of the plurality of the tool attachments configured to turnably hold a rotatable tool, the rotatable tool configured to be selected by turning the turret about the first axis:
a tool attachment turning part configured to turn the at least one of the plurality of the tool attachments about a second axis; and
a rotation driving part configured to rotate the rotatable tool about a third axis,
wherein:
the tool attachment turning part includes a tool turning motor, a tool attachment transmission shaft, and a tool attachment turning gear, wherein the tool attachment transmission shaft and the tool attachment turning gear are disposed on the turret, the tool attachment turning part being configured to turn the rotatable tool about the second axis,
the rotation driving part includes a tool rotating motor, a tool-rotation drive shaft, and a tool-rotation gear, the rotation driving part configured to rotate the rotatable tool to process a material,
the turret turning shaft and turret turning gear are disposed on the post body,
the turret turning shaft includes a hollow portion into which the tool-rotation drive shaft is inserted, and
the tool rotating motor is disposed at a side of the post body opposite to a side of the post body at which the turret and the tool turning motor are located.

US Pat. No. 10,241,493

CONTROL DEVICE FOR MACHINE TOOL AND MACHINE TOOL INCLUDING THE CONTROL DEVICE

Citizen Watch Co., Ltd., ...

1. A machine tool having:a cutting tool for cutting a workpiece, a rotating unit for rotating the cutting tool and the workpiece relative to each other;
a feeding unit for feeding the cutting tool and the workpiece in a predetermined feed direction;
a vibration unit for reciprocally vibrating the cutting tool and the workpiece relative to each other; and
a control device having:
a numerical value setting section configured to set values of two parameters from the group consisting of a number of rotations of the cutting tool and the workpiece relative to each other, a number of vibrations of the reciprocal vibration per rotation of the cutting tool and the workpiece relative to each other, and a vibration frequency dependent on a period in which the control device can execute an operating instruction when the workpiece is machined; and
a control section for making the machine tool machine the workpiece via rotation of the cutting tool and the workpiece relative to each other, and via the feeding of the cutting tool to the workpiece with reciprocal vibration of the cutting tool and the workpiece relative to each other by the vibration unit, for setting the remaining one of the said parameters to a predetermined value, and for correcting the values of said two of the parameters set by the numerical value setting section in dependence on the value of the remaining one of said parameters.

US Pat. No. 10,213,889

MACHINE TOOL AND CONTROL APPARATUS OF THE MACHINE TOOL

Citizen Watch Co., Ltd., ...

1. A machine tool comprising:a workpiece holding unit to hold a workpiece;
a tool rest to hold a cutting tool for cutting the workpiece;
a feeding unit to feed the cutting tool toward the workpiece in a predetermined feeding direction via relative movement between the workpiece holding unit and the tool rest;
a repetitive movement unit to reciprocally vibrate the workpiece holding unit and the tool rest in a mutually relative manner by repeating the relative movement in the feeding direction; and
a rotating unit to relatively rotate the workpiece and the cutting tool;
wherein the machine tool is capable of machining the workpiece via the relative rotation between the workpiece and the cutting tool and via the feeding of the cutting tool toward the workpiece with the reciprocal vibration; and
wherein the repetitive movement unit is configured so that the cutting tool performs one vibration with respect to multiple relative rotations between the workpiece and the cutting tool and so that a rotation angle of the relative rotation during a backward movement is smaller than a rotation angle of the relative rotation during a forward movement in one reciprocal vibration.

US Pat. No. 10,381,177

PUSH SWITCH, METHOD OF MANUFACTURING PUSH SWITCH, AND ELECTRONIC DEVICE INCLUDING PUSH SWITCH

CITIZEN ELECTRONICS CO., ...

1. A push switch comprising:a substrate comprising electrodes on an upper surface of the substrate, the electrodes comprising a first electrode and a second electrode;
a resilient member arranged on the first electrode of the substrate over the second electrode of the substrate, the resilient member having no through hole;
a light-transmitting member comprising an elastic film comprising a crosslinked product of a chain olefin-cyclic olefin copolymer, the light-transmitting member covering the resilient member from above, and having an upper surface, a lower surface and a peripheral side surface between edges of the upper surface and edges of the lower surface of the light-transmitting member; and
a light-emitting element with a light-emitting surface,
wherein a periphery of the lower surface of the light-transmitting member is fixed on the substrate,
wherein the substrate has a cut portion at an edge of at least one side of an outer periphery of the substrate, the cut portion penetrating from the upper surface of the substrate to a lower surface of the substrate, and
wherein the light-emitting element is arranged at a position at the cut portion of the substrate.

US Pat. No. 10,302,840

BACKLIGHT

CITIZEN WATCH CO., LTD, ...

1. A backlight, comprising:a light guide plate including a light emission surface, a reflective surface and at least one of lateral surface as an incident surface;
a light source disposed to face the incident surface;
a reflective member which is disposed to face another lateral surface other than the incident surface and includes a diffusion reflective surface; and
an adhesive member for adhering the reflective member to the another lateral surface of the light guide plate,
wherein a length of the adhesive member in a thickness direction of the light guide plate is smaller than a thickness of the light guide plate, and
the length of the adhesive member in the thickness direction of the light guide plate is not constant.

US Pat. No. 10,247,634

DISCONNECTION DETECTION CIRCUIT OF PRESSURE DETECTION DEVICE

CITIZEN FINEDEVICE CO., L...

1. A disconnection detection circuit of a pressure detection device, with the pressure detection device including at least: a pressure detection portion having a pressure detection element which receives pressure so as to output a charge signal corresponding to the pressure; and a wiring cable which transmits a detection signal output from the pressure detection portion to an external circuit, the disconnection detection circuit detecting a disconnection of the wiring cable in the pressure detection device,wherein the disconnection detection circuit comprises:
a pull-up resistor to which the detection signal is fed and which connects a signal line connected to the wiring cable to a power supply or a pull-down resistor which connects the signal line to a GND; and
a voltage clip circuit which includes a high-voltage clip circuit which is connected between the signal line and the power supply and which clips the voltage of the signal line to a maximum specified voltage and a low-voltage clip circuit which is connected between the signal line and the GND and which clips the voltage of the signal line to a minimum specified voltage,
wherein the voltage clip circuit includes an output resistor which is connected in series to the signal line on the input side of the high-voltage clip circuit and the low-voltage clip circuit.

US Pat. No. 10,170,674

LED DEVICE

Citizen Watch Co., Ltd., ...

1. An LED device comprising:one or more LED dies which have a first electrode and a second electrode;
a submount substrate having a top surface on which the one or more LED dies are mounted and a bottom surface;
a frame-shaped electrode that is arranged along the periphery of the bottom surface of the submount substrate, and electrically connected to the first electrode or electrically connected to neither the first electrode nor the second electrode; and
one or more inside electrodes that are surrounded by the frame-shaped electrode and which are connected to at least one of the first electrode and the second electrode, wherein
the shape of the bottom surface of the submount substrate is rectangular,
the frame-shaped electrode is arranged along only a first side of the bottom surface of the substrate, a second side of the bottom surface of the substrate in a direction perpendicular to the first side of the bottom surface of the substrate, and a third side of the bottom surface of the substrate in the direction parallel to the first side of the bottom surface of the submount substrate, and the frame-shaped electrode has a first portion arranged along the first side of the bottom surface of the substrate, a second portion arranged along the second side of the bottom surface of the substrate, a third portion arranged along the third side, and is not arranged along the fourth side of the bottom surface of the submount substrate in the direction parallel to the second side of the bottom surface of the substrate, and
both ends of the first portion and third portion of the frame-shaped electrode facing the fourth side of the bottom surface of the substrate touch the fourth side of the bottom surface of the substrate.

US Pat. No. 10,342,303

BAND

CITIZEN WATCH CO., LTD., ...

1. A band comprising:pivot shafts extending in a width direction of the band and
a plurality of link members connected to each other so as to be pivoted by the pivot shafts, in said band,
at least on of said plurality of link members has a sheet member extending in a length direction perpendicular to the width direction and having two end parts at the end of the length direction, and a wrapped member around which said sheet member is wrapped,
said wrapped member has a pair of side parts facing an adjoining link member, wherein the pair of side parts face each other and each of the pair of side parts has a top end part at the upper end thickness direction of the side part and a bottom end part at the lower end of the thickness direction of the side part, wherein the thickness direction is a direction perpendicular to the length direction, and
both of said two end parts of said sheet member are arranged to make them face each other between the top end part and bottom end part of one of said pair of side parts in a thickness direction so as to face an adjoining link member.

US Pat. No. 10,304,641

SPRING PLATE AND PUSH SWITCH INCLUDING SPRING PLATE

CITIZEN ELECTRONICS CO., ...

1. A spring plate comprising:a central portion;
an opening having a rectangular shape and being positioned at a center of the central portion, the opening comprising an inner edge; and
a single strip extending from a part of the inner edge of the opening, wherein
the single strip comprises:
a first width that is positioned adjacent to the part of the inner edge of the opening; and
a second width that is positioned adjacent to an end of the single strip,
the first width of the single strip is wider than the second width of the single strip,
the single strip comprises a first shape that becomes gradually wider with gentle curves toward the first width from a position that is closer to the first width than the end of the single strip,
the single strip comprises a second shape having an elongated shape including the second width of the single strip, and is positioned closer to the end of the single strip than the first width of the single strip, and
a part of the single strip adjacent to the end of the single strip is positioned lower than the inner edge of the opening.

US Pat. No. 10,303,121

POWER TRANSMISSION BODY OF TIMEPIECE AND METHOD OF MANUFACTURING POWER TRANSMISSION BODY OF TIMEPIECE

CITIZEN WATCH CO., LTD., ...

1. A power transmission body of a timepiece, comprising:a power transmission member provided with a hole in a center portion of the power transmission member, the hole having distances from a rotation center to an inner edge, and the distances being different in accordance with angular positions about the rotation center; and
an arbor including an insertion portion fitted into the hole, the insertion portion having distances from the rotation center to an outer edge, and the distances being different in accordance with angular positions about the rotation center, wherein
the hole includes at least two portions that are positioned in a circumferential direction about the rotation center and contact the insertion portion, and a portion that is positioned in front of the two portions in a specific rotation direction about the rotation center and has a distance from the rotation center longer than a distance from the rotation center to each of the two portions,
the insertion portion is a gear-like portion having a distance ra from the rotation center to an outermost projecting edge,
the hole has distances Ra, Rb from the rotation center to the inner edge, the distance Ra being different from the distance Rb, and
the distance ra, the distances Ra, Rb of the hole, and an angle ? satisfy a following inequation where the angle ? is an angle between a line connecting the rotation center and a center of a tooth bottom of a tooth of the gear-like portion and a line connecting the rotation center and the outermost projecting edge:
Rb

US Pat. No. 10,293,409

MACHINE TOOL AND WORKPIECE PROCESSING SYSTEM

CITIZEN WATCH CO., LTD., ...

1. A machine tool comprising:a plurality of modules each including a workpiece holder that holds a workpiece and an operation part holder that holds an operation part for performing a predetermined operation to the workpiece held by the workpiece holder, the workpiece holder and the operation part holder being integrally provided; and
a bed on which each of the modules is installed, wherein:
the modules include two movable modules arranged in parallel and an opposite module disposed to face the two movable modules,
the workpiece is processed while being transferred between at least one of the movable modules and the opposite module,
the movable modules are arranged in parallel to be movable in a direction in which the movable modules are arranged,
a recess is provided next to the opposite module, the recess being formed by cutting out the bed,
at least one of the movable modules is movable to be aligned with the opposite modules, and
at least one of the movable modules is provided to be movable to face the recess.

US Pat. No. 10,252,345

MACHINE TOOL

Citizen Watch Co., Ltd., ...

1. A machine tool comprising:movement means having a first feed axis and a second feed axis that mutually intersect; and
a tool post movable with the movement means, the tool post including a plurality of tools mounted thereon, each of said tools having a respective work-engaging edge, and said plurality of tools being movable as a unit along with movement of the tool post with the movement means;
the tool post having a predetermined cut-in direction along which said plurality of tools mounted on the tool post are moved to adjust the depth of cut-in in a turning operation;
said plurality of tools being mounted on the tool post so that machining of a workpiece is executed by movement of the tool post in the cut-in direction;
machining of the workpiece being executed by a selected one of said plurality of tools by moving the tool post in the cut-in direction;
each of said plurality of tools mounted on the tool post being selectively switchable by movement of said plurality of tools in a direction of a selection axis, said selection axis intersecting said cut-in direction;
the tools of said plurality of tool being arranged side by side in the direction of said selection axis;
each of said plurality of tools having a respective longitudinal axis that is inclined with respect to a predetermined reference plane;
the respective work-engaging edges of said plurality of tools being staggered in a stepwise fashion in the cut-in direction; and
said plurality of tools being arranged such said work-engaging edges thereof are substantially aligned with a straight line, said straight line extending through each of said work-engaging edges and being perpendicular to said predetermined reference plane.

US Pat. No. 10,197,972

DRIVE CIRCUIT FOR TWO-COIL STEP MOTOR

CITIZEN WATCH CO., LTD., ...

1. A drive circuit for a two-coil stepper motor, comprising:a rotor that is magnetized into at least two poles in a radial direction of the rotor;
a first stator magnetic-pole portion and a second stator magnetic-pole portion, which are formed to be substantially opposed to each other through intermediation of the rotor;
a third stator magnetic-pole portion formed between the first stator magnetic-pole portion and the second stator magnetic-pole portion so as to face the rotor;
a first coil to be magnetically coupled to the first stator magnetic-pole portion and the third stator magnetic-pole portion;
a second coil to be magnetically coupled to the second stator magnetic-pole portion and the third stator magnetic-pole portion;
a drive pulse generation circuit configured to output a drive pulse for driving the first coil and the second coil;
a detection pulse generation circuit configured to output a detection pulse to at least one of the first coil or the second coil in order to detect a counter-electromotive current generated in at least one of the first coil or the second coil along with a movement of the rotor after the rotor is driven based on the drive pulse; and
a detection circuit configured to receive a detection signal generated based on the detection pulse as input, to thereby detect the movement of the rotor;
where the detection pulse generation circuit is configured to output the detection pulse to any one of the first coil and the Second coil, or both of the first coil and the second coil.

US Pat. No. 10,367,032

LIGHT-EMITTING APPARATUS

CITIZEN ELECTRONICS CO., ...

1. A light-emitting apparatus comprising: a board; a first reflective layer arranged on the board; a second reflective layer different from the first reflective layer, arranged at a position different from the position of the first reflective layer on the board; a first configuration configured by a first LED element mounted on the first reflective layer and a first phosphor-containing resin which protects the first LED element and transforms a wavelength of light emitted from the first LED element; and a second configuration configured by a second LED element mounted on the second reflective layer and a second phosphor-containing resin which protects the second LED element and transforms a wavelength of light emitted from the second LED element, wherein a thickness of the first reflective layer is different than a thickness of the second reflective layer, and a reflective efficiency of the first reflective layer for first light emitted from the first configuration is higher than a reflective efficiency of the second reflective layer for the first light, wherein the first reflective layer includes a first light-reflecting metal layer and first reflection-enhancement layers deposited on the first light-reflecting metal layer, the first reflection-enhancement layers being composed of thin dielectric layers having refractive indices that are different from each other, the second reflective layer includes a second light-reflecting metal layer and second reflection-enhancement layers deposited on the second light-reflecting metal layer, the second reflection-enhancement layers being composed of thin dielectric layers having refractive indices that are different from each other, and the first reflection-enhancement layers and the second reflection-enhancement layers have different thicknesses.

US Pat. No. 10,267,489

LIGHT-EMITTING APPARATUS

CITIZEN ELECTRONICS CO., ...

1. A light-emitting apparatus comprising:a substrate;
a side-emitting LED device which is disposed on the substrate and includes side faces in which a resin frame containing a phosphor is exposed, wherein the side-emitting LED device emits light laterally from the side faces; and
a top-emitting LED device which includes an upper surface in which a resin layer containing a phosphor is exposed and legs fixed on the substrate, wherein the top-emitting LED device emits light upward from the upper surface, the light being different in color than the light emitted from the side-emitting LED device; and
a reflecting frame disposed on the substrate so as to surround the side-emitting LED device and reflect the light emitted from the side-emitting LED device upward,
wherein the side-emitting LED device is accommodated in a space created by the legs between the substrate and the top-emitting LED device, and is aligned with the top-emitting LED device vertically relative to the substrate.

US Pat. No. 10,424,562

LIGHT EMITTING DEVICE WITH PHOSPHORS

Citizen Electronics Co., ...

1. A light emitting device comprising:a first blue light emitting element;
a second blue light emitting element;
a first phosphor sheet containing a first phosphor and a third phosphor different from the first phosphor, and covering a top face of the first blue light emitting element; and
a second phosphor sheet containing a second phosphor different from the first phosphor and a fourth phosphor different from the second phosphor, and covering a top face of the second blue light emitting element,
wherein a peak wavelength of, light which is wavelength-converted by the first phosphor is less than a peak wavelength of light which is wavelength-converted by the third phosphor, and the peak wavelength of light which is wavelength-converted by the third phosphor is equal to or less than a peak wavelength of light which is wavelength-converted by the second phosphor, and the peak wavelength of light which is wavelength-converted by the second phosphor is less than a peak wavelength of light which is wavelength-converted by the fourth phosphor, and
the first phosphor sheet does not contain a phosphor wavelength-converting to lights having a peak wavelength more than the peak wavelength of light which is wavelength-converted by the second phosphor, and the second phosphor sheet does not contain a phosphor wavelength-converting to lights having a peak wavelength less than the peak wavelength of light which is wavelength-converted by the third phosphor.

US Pat. No. 10,421,302

COVER OPENING AND CLOSING MECHANISM, AND PRINTER

CITIZEN WATCH CO., LTD., ...

1. A cover opening and closing mechanism comprising:a main body casing having an opening;
a cover coupled to the main body casing in a manner enabling the cover to rotate between a closed position closing the opening of the main body casing and an open position opening the opening;
a locking mechanism that fixes the cover at the closed position in a releasable manner; and
a pop-up mechanism that rotates the cover from the closed position toward the open position when locking by the locking mechanism is released, wherein
the pop-up mechanism includes:
a first contact member having first contact parts that are connected to each other and are respectively disposed at both ends of one of the main body casing and the cover, the both ends being in a direction parallel to a rotation axis of the cover;
a second contact member having second contact parts respectively disposed at another of the main body casing and the cover not disposed with the first contact parts, the second contact parts being disposed at positions that interfere on a trace of movement of the first contact parts accompanying rotation of the cover, the second contact parts abutting the first contact parts when the cover is positioned within a predetermined range from the closed position; and
a biasing member that biases the first contact member in a direction so that the first contact parts push the second contact parts.

US Pat. No. 10,414,009

MACHINE TOOL AND CONTROL APPARATUS OF THE MACHINE TOOL

Citizen Watch Co., Ltd, ...

1. A machine tool comprising:a workpiece holding unit to hold a workpiece;
a tool rest to hold a cutting tool that cuts the workpiece;
a feeding unit comprising a workpiece moving mechanism to move the workpiece held by the workpiece holding unit and a tool rest moving mechanism to move the tool rest to feed the cutting tool toward the workpiece in a predetermined feeding direction by moving the workpiece moving mechanism and/or the tool rest moving mechanism;
a vibration unit to cause relative reciprocal vibration between the workpiece holding unit and the tool rest and to make a cutting portion during forward movement of the vibration overlap with a cutting portion during backward movement of the reciprocal vibration; and
a rotating unit to cause the cutting tool to rotate with respect to the workpiece or the workpiece to rotate with respect to the cutting tool,
the machine tool being capable of cutting the workpiece via the rotation of the workpiece or the cutting tool and via the feeding of the cutting tool toward the workpiece with reciprocal vibration in the feeding direction,
wherein the machine tool comprises a vibration frequency setting unit to set vibration frequency of the reciprocal vibration with respect to one rotation of the workpiece or the cutting tool when machining the workpiece based on a difference of heights of concave and convex portions formed on a surface of the workpiece corresponding to paths of the cutting tool during the forward movement and the backward movement and having predetermined heights so that the concave and convex portions are dispersed respectively at different phase positions of the workpiece.

US Pat. No. 10,414,010

MACHINE TOOL AND CONTROL APPARATUS OF THE MACHINE TOOL

Citizen Watch Co., Ltd., ...

1. A machine tool comprising:a workpiece holding unit to hold a workpiece;
a tool rest to hold a cutting tool for cutting the workpiece;
a feeding unit to feed the cutting tool toward the workpiece in a predetermined feeding direction via relative movement between the workpiece holding unit and the tool rest;
a repetitive movement unit to move the workpiece holding unit and the tool rest in a mutually relative manner in repeated cycles of relative movement of said workpiece holding unit and said tool rest along said predetermined feeding direction, each of said repeated cycles consisting of a relative movement of said workpiece holding unit and said tool rest at a first speed and a relative movement of said workpiece holding unit and said tool rest at a second speed different from said first speed, said first and second speeds of relative movement being in a range including relative movement at a speed of zero; and
a rotating unit to relatively rotate the workpiece and the cutting tool;
wherein the machine tool is capable of machining the workpiece via the relative rotation between the workpiece and the cutting tool and via the feeding of the cutting tool toward the workpiece with said repeated cycles of relative movement; and
wherein the repetitive movement unit is configured so that the cutting tool performs one repeated cycle with respect to multiple relative rotations between the workpiece and the cutting tool and so that a rotation angle of the relative rotation during the relative movement at said second speed is smaller than a rotation angle of the relative rotation during the relative movement at the first speed in each of said repeated cycles.

US Pat. No. 10,401,822

START LIMITING DEVICE AND MACHINE TOOL

CITIZEN WATCH CO., LTD., ...

1. An operating control limiting method for an equipment which is controlled by a controller in order to perform predetermined operations, the operating control limiting method comprising the following steps of:prohibiting the operating control of the equipment by the controller regardless of installation position of the equipment after the equipment is moved from a predetermined installation position; and
releasing the prohibition of the operating control of the equipment by the controller, wherein
the release from the prohibition after the prohibition of the operating control is performed by a receipt of a first command which continuously releases the prohibition of the operating control unit next time the equipment is moved, or a receipt of a second command which releases the prohibition of the operating control only within a predetermined fixed period,
the release from the prohibition of the operating control by the receipt of the second command is performs within the predetermined fixed period after the controller receives the second command,
after the prohibition of the operating control is released by the receipt of the second command, and the operating control is permitted during the predetermined fixed period, the operating control is prohibited regardless of installation position of the equipment, the release from the prohibition of the operating control by the receipt of the second command is restricted, and the release from the prohibition of the operating control by the receipt of the first command is permitted.

US Pat. No. 10,390,708

OPTICAL MEASURING DEVICE AND TOOTHBRUSH PROVIDED WITH SAME

CITIZEN WATCH CO., LTD., ...

1. An optical measuring device detecting fluorescence of a substance to be measured, the substance adhering to a sample emitting intrinsic fluorescence, the optical measuring device comprising:first and second light sources that respectively emit first light and second light exciting the sample, the second light having a longer wavelength and lower excitation efficiency for the substance than the first light;
an optical filter on which the fluorescence is incident, the optical filter substantially transmitting only light in a wavelength region including a peak wavelength of the fluorescence of the substance, wherein the light in the wavelength region is such that first intensity of fluorescence generated by the first light is different from second intensity generated by the second light,
a detection unit that detects light transmitted through the optical filter,
a control unit that calculates a ratio or difference between the first intensity of fluorescence detected when the sample is irradiated with the first light and second intensity of fluorescence detected when the sample is irradiated with the second light,
thereby obtaining an intensity of fluorescence without the intrinsic fluorescence, to calculate the amount of fluorescence of the substance.

US Pat. No. 10,348,219

ELECTROSTATIC INDUCTION POWER GENERATOR

CITIZEN WATCH CO., LTD., ...

1. A board arrangement structure comprising:a housing having a reference mounting surface;
a first board having a first facing surface and fastened to said housing;
a second board having a second facing surface and arranged in an orientation enabling relative movement with respect to the first board;
an electrically charged film;
a counter electrode arranged facing said electrically charged film; and
an output part outputting electric power generated between said electrically charged film and said counter electrode;
wherein either one of said electrically charged film and said counter electrode is arranged at said first facing surface and the other is arranged at said second facing surface,
said first facing surface of said first board is fastened to said reference mounting surface,
a shaft is provided with said second board and said shaft is able to rotate at an upper bearing part and a lower bearing part provided at said housing,
either one of said upper bearing part and lower bearing part or both has a first screw adjusting an axial position of said shaft, and
said first screw is provided with a second screw preventing said first screw from loosening, said second screw locking axial positions of said shaft and said first screw.

US Pat. No. 10,345,222

ILLUMINATION DEVICE AND METHOD FOR GENERATING ILLUMINATION LIGHT

CITIZEN WATCH CO., LTD., ...

1. An illumination device comprising:a light source which emits polarized light that has a Gaussian beam profile and that includes a first polarized light component and a second polarized light component orthogonal to each other; and
a spiral phase element which provides an amount of phase modulation to the first polarized light component of the polarized light passing through the spiral phase element to turn the beam profile of the first polarized light component into a Laguerre-Gauss-like beam profile, where the amount of the phase modulation is increased by a predetermined amount along a circumference direction around an optical axis, and which forms a composite beam that has a top-hat-shaped beam profile and that is synthesized from the second polarized light component of the polarized light passing through the spiral phase element and from the first polarized light component having the Laguerre-Gauss-like beam profile.

US Pat. No. 10,331,084

ELECTRONIC WATCH

CITIZEN WATCH CO., LTD., ...

1. An electronic watch, comprising:a step motor;
a driving pulse generator circuit configured to output a driving pulse having a plurality of different driving forces for driving the step motor;
a detection pulse generator circuit configured to output, after the step motor has been driven by the driving pulse, a detection pulse for detecting rotation/non-rotation of the step motor;
a correction pulse generator circuit configured to output a correction pulse for compensation of driving by the driving pulse;
a pulse selection circuit configured to select and output the driving pulse, the detection pulse, and the correction pulse;
a driver circuit configured to supply to the step motor the driving pulse, the detection pulse, and the correction pulse output from the pulse selection circuit; and
a rotation detection circuit configured to receive a detection signal generated by the detection pulse to judge rotation/non-rotation of the step motor,
the pulse selection circuit being configured to, when a judgment of non-rotation is reached by the rotation detection circuit, output the correction pulse and select a driving pulse having a higher driving force than a present driving pulse,
the electronic watch further comprising a driving interval switch circuit configured to switch a driving interval of the driving pulse between a normal driving interval which is a driving interval to be normally used, and a high-speed driving interval, which is a shorter driving interval than the normal driving interval,
the rotation detection circuit being capable of changing a detection condition in accordance with the driving interval of the driving pulse,
wherein the driving interval switch circuit is configured to change the detection condition of the rotation detection circuit between the normal driving interval and the high-speed driving interval,
wherein the driving interval switch circuit is configured to change the detection condition of the rotation detection circuit such that non-rotation is judged more quickly when the high-speed driving interval is selected than when the normal driving interval is selected,
wherein the driving interval switch circuit is configured to set a number of outputs of the detection pulse to be lower when the high-speed driving interval is selected than when the normal driving interval is selected.

US Pat. No. 10,274,897

SPEED GOVERNOR FOR TIMEPIECE

CITIZEN WATCH CO., LTD., ...

1. A governor for a timepiece comprising:a balance spring, and
a balance wheel,
wherein the balance spring comprises a base member that has a spiral shape, and a coating film that is applied to a surface of the base member to improve strength of the balance spring,
wherein a spring constant of the balance spring changes in accordance with a temperature change,
wherein a moment of inertia of the balance wheel changes in accordance with the temperature change,
wherein a change in an oscillation period due to the temperature change is suppressed by a change in the spring constant of the balance spring and by a change in the moment of inertia of the balance wheel,
wherein the balance wheel comprises
a balance staff,
a support member that extends radially outward from the balance staff as a center, and
a weight member that is supported by the support member and extends radially inward from a supported portion of the weight member, and
wherein a coefficient of thermal expansion of the weight member in accordance with the temperature change is larger than a coefficient of thermal expansion of the support member.

US Pat. No. 10,268,162

ELECTRONIC WATCH

CITIZEN WATCH CO., LTD., ...

1. An electronic watch, comprising:a step motor;
a normal pulse generator circuit configured to output a normal pulse for driving the step motor;
a detection pulse generator circuit configured to output, after the step motor has been driven with the normal pulse, a detection pulse for detecting whether or not the step motor has been rotated;
a pulse selection circuit configured to selectively output the normal pulse and the detection pulse;
a driver circuit configured to load a pulse output from the pulse selection circuit on the step motor;
a rotation detector circuit configured to input a detection signal generated from the detection pulse, and to determine whether or not the step motor has been rotated; and
a frequency selection circuit configured to determine a driving interval of the normal pulse, wherein:
the detection pulse generator circuit is configured to output the detection pulse so as to divide the detection pulse into predetermined segments; and
the rotation detector circuit is configured to conduct rotation detection separately in each detection segment, said detection segments corresponding to the predetermined segments, and to instruct the frequency selection circuit to select a frequency corresponding to the detection segment in which the detection signal has been detected.

US Pat. No. 10,268,176

CONTROL DEVICE FOR MACHINE TOOL AND MACHINE TOOL INCLUDING THE CONTROL DEVICE

Citizen Watch Co., Ltd., ...

1. A machine tool comprising a workpiece holding unit for holding a workpiece, a tool post to hold a cutting tool for cutting a workpiece, a rotating unit for rotating the cutting tool and the workpiece relative to each other, a feeding unit for feeding the cutting tool and the workpiece in a predetermined feed direction, a vibration unit for reciprocally vibrating the cutting tool and the workpiece relative to each other, and a control device comprising a control section to make the machine tool machine the workpiece via the rotation of the cutting tool and the workpiece relative to each other and via the feeding of the cutting tool in the feed direction to the workpiece with the reciprocal vibration, wherein the control section determines a number of rotations of the workpiece and cutting tool relative to each other and a number of vibrations of the reciprocal vibration per rotation in the rotation of the workpiece and cutting tool relative to each other when the workpiece is machined in accordance with a vibration frequency dependent on a period in which an operating instruction can be executed.

US Pat. No. 10,431,721

LIGHT-EMITTING DEVICE AND METHOD FOR MANUFACTURING SAME

CITIZEN ELECTRONICS CO., ...

1. A light-emitting device comprising:a substrate;
a plurality of light-emitting elements that are mounted on the substrate in a lattice manner;
a first resin layer that integrally seals the plurality of light-emitting elements and includes a first phosphor that is excited by light from the plurality of light-emitting elements at a concentration that is high as it goes to a lower end near the substrate from an upper end distant from the substrate; and
a second resin layer that is disposed on an upper side of the first resin layer via an interface, the second resin layer including a second phosphor that is the same as the first phosphor, at a uniform concentration, wherein
the first phosphor is precipitated on upper surfaces of the light-emitting elements and the upper surface of the substrate between the light-emitting elements, and the second phosphor is uniformly dispersed in the second resin layer at a concentration lower than the concentration of the first phosphor at the lower end of the first resin layer, and thereby generates a smaller amount of heat than the first phosphor.

US Pat. No. 10,370,769

METHOD OF MANUFACTURING ELECTROFORMED COMPONENTS

CITIZEN WATCH CO., LTD., ...

1. A method of manufacturing electroformed components comprising:forming a first through-hole by patterning a first photoresist layer formed on a front surface side of a conductive layer, the first through-hole penetrating the first photoresist layer along a stacking direction of the conductive layer and the first photoresist layer;
depositing a first electroformed member on the front surface side of the conductive layer in the first through-hole by electroforming using the conductive layer as one electrode;
forming a first electroformed component by planarizing the front surface side of the first electroformed member and the first photoresist layer;
removing the first photoresist layer from the conductive layer having the first electroformed component formed;
oxidizing a surface of the first electroformed component to form an oxide film on the surface of the first electroformed component, the surface being exposed by the removing of the first photoresist layer, the oxide film facilitating separation of a second electroformed component from the first electroformed component;
forming a second through-hole by forming on the front surface side of the conductive layer, a second photoresist layer covering the first electroformed component from the front surface side and by patterning the second photoresist layer, the second through-hole penetrating the second photoresist layer along the stacking direction while a portion of the first electroformed component projects inward into the second through-hole;
depositing a second electroformed member on the front surface side of the conductive layer in the second through-hole by electroforming using the conductive layer as one electrode;
forming the second electroformed component by planarizing the front surface side of the second electroformed member and the second photoresist layer;
removing the conductive layer from the first electroformed component, the second electroformed component, and the second photoresist layer;
removing the second photoresist layer from the first electroformed component and the second electroformed component having the conductive layer removed;
separating the first electroformed component and the second electroformed component; and
chamfering the first electroformed component at least on a corner of a portion located in the second through-hole, wherein the forming of the oxide film for separation is executed after the chamfering, wherein the chamfering included chamfering the corner by one of electrolytic polishing and wet etching.

US Pat. No. 10,369,810

FEEDING UNIT AND PRINTER

CITIZEN WATCH CO., LTD., ...

1. A feeding unit provided to a set of first printer and a second printer, each of the first and second printers including a holding unit that holds a long strip-like recording medium in a wound state and a recording unit that executes a recording operation with respect to the recording medium pulled out from the holding unit, the first printer and the second printer cutting off and discharging the long strip-like recording medium on which the recording operation has been executed, the feeding unit comprising:a sorting part that sorts the recording medium discharged from the first printer, to a side of the second printer stacked on the printer and having a configuration identical to a configuration of the first printer, or to a position different from the side of the second printer;
a guiding part that guides the recording medium sorted by the sorting part to the side of the second printer, to be supplied to a position to which a second recording medium held by the holding unit of the second printer is pulled out, the guiding part guiding the recording medium along a direction identical to a direction to pull out the second recording medium; and
a feeding part that accommodates the recording medium sorted to the position different from the side of the second printer by the sorting part, the feeding part accommodating the recording medium until a tail end of the recording medium passes through the sorting part, the feeding part feeding the recording medium to the guiding part starting with the tail end, when the tail end passes through the sorting part, wherein
the sorting part sorts the recording medium fed by the feeding part, to the side of the second printer.