US Pat. No. 9,093,060

SOUND-PROOF MATERIAL AND PROCESS FOR PRODUCTION THEREOF, SOUND-PROOF MOLDING, AND SOUND INSULATION METHOD

NICHIAS CORPORATION, Tok...

1. A sound-proof material comprising:
a first sound-absorbing material disposed facing a sound source;
a first soft sound-insulating layer laminated on a face of the first sound-absorbing material opposite to the sound source,
and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower;

a second sound-absorbing material laminated on the first soft sound-insulating layer; and
a second soft sound-insulating layer laminated on the second sound-absorbing material, and having an air permeability measured
in accordance with JIS L1018 of 10 cc/cm2·sec or lower and a Young's modulus measured in accordance with JIS K7127 greater than or equal to five times that of the
first soft sound-insulating layer within the range in which it can be deformed by vibration together with the sound-absorbing
material,

wherein at least the second soft sound-insulating layer is partially or entirely bonded to the second sound-absorbing material.

US Pat. No. 9,156,730

INORGANIC FIBER AND METHOD FOR MANUFACTURING THE SAME

NICHIAS CORPORATION, Tok...

1. An inorganic fiber comprising Al2O3, MgO and SiO2, wherein the content of Al2O3 is 30 mass % or more and less than 81 mass %, the content of MgO is more than 19 mass % and 65 mass % or less, and the content
of SiO2 is 40 mass % or less, and wherein the total content of Al2O3, MgO and SiO2 relative to the entire fiber is 98 mass % or more.

US Pat. No. 9,051,200

DISK ROLL AND BASE MATERIAL THEREOF

NICHIAS CORPORATION, Tok...

1. A composition for disk roll base material, comprising:
20 to 38 wt % of alumina silicate wool that comprises 40 to 60 wt % alumina and 40 to 60 wt % silica, and not more than 5
wt % shots having a size of 45 ?m or more,

10 to 30 wt % kibushi clay,
only 5 to 15 wt % bentonite, and
20 to 40 wt % mica.
US Pat. No. 9,174,875

INORGANIC FIBROUS MOLDED REFRACTORY ARTICLE, METHOD FOR PRODUCING INORGANIC FIBROUS MOLDED REFRACTORY ARTICLE, AND INORGANIC FIBROUS UNSHAPED REFRACTORY COMPOSITION

Nichias Corporation, Tok...

1. An inorganic fibrous shaped refractory article comprising materials comprising:
2 to 95 mass % of rock wool which comprises:
35-45 mass % SiO2,

10-20 mass % Al2O3,

4-8 mass % MgO, and
20-40 mass % CaO;
2 to 95 mass % of inorganic powder having a needle-like crystal structure; and
3 to 32 mass % of a binder.

US Pat. No. 9,051,202

METHOD OF PRODUCING A DISK ROLL

NICHIAS CORPORATION, Tok...

1. A method of producing a disk roll, comprising:
providing a plurality of disks comprising:
20 to 50 wt % of ceramic wool,
5 to 30 wt % of kibushi clay,
2 to 20 wt % of bentonite,
20 to 45 wt % of a filler selected from the group consisting of mica, alumina, wollastonite, cordierite, and calcined kaolin;
and

the total content of the ceramic wool, kibushi clay, bentonite and a filler is 95 wt % or more;
firing the plurality of disks so that disks have a density of more than 1.20 g/cm3 and 1.50 g/cm3 or less, and a Shore D hardness of 30 to 68,

and after firing mounting a plurality of disks onto a shaft.

US Pat. No. 9,810,117

MUFFLER CUTTER

NICHIAS CORPORATION, Tok...

1. A muffler cutter that is fitted to a tailpipe of a vehicular exhaust system, the muffler cutter comprising:
an exhaust pipe, a plurality of through-holes being formed in a side wall of the exhaust pipe;
a tubular heat shield plate provided around the exhaust pipe coaxially with the exhaust pipe;
a space defined by the exhaust pipe and tubular heat shield plate, the space having a first portion and a second portion;
and

a sound-absorbing heat insulator provided only in the first portion of the space, wherein
the first portion and the second portion of the space each has a curved shape,
the sound-absorbing heat insulator has a curved shape,
the second portion of the space is a hollow and closed space, and
the exhaust pipe is spaced 1 to 50 mm apart from the tubular heat shield plate in the second portion of the space.

US Pat. No. 9,266,063

HOLDING MATERIAL FOR GAS TREATMENT DEVICE, GAS TREATMENT DEVICE, AND METHOD RELATING TO SAME

NICHIAS CORPORATION, Tok...

1. A method of treating a gas with a gas treatment device comprising a treatment structure, a casing made of a metal for housing
the treatment structure and a holding material made of inorganic fibers placed between the treatment structure and the casing,
the method comprising:
placing an organic polymer between the holding material and the casing so that the organic polymer is brought into contact
with an outer surface of the holding material and an inner surface of the casing during treatment of the gas; and

treating the gas under a condition that a temperature of the casing is equal to or higher than a softening temperature of
the organic polymer and lower than a decomposition temperature of the organic polymer.

US Pat. No. 9,434,656

WET BLANKET

NICHIAS CORPORATION, Tok...

1. A method of applying a wet blanket of bio-soluble inorganic fibers to a surface, said method comprising:
providing a wet blanket comprising bio-soluble inorganic fibers having a physiological saline dissolution ratio of 1% or more,
said wet blanket being impregnated with a colloidal silica liquid, and a solvent content of about 15 wt % to about 75 wt %;

storing said wet blanket in a sealed bag;
then removing said wet blanket from the bag and applying it while still wet, to a surface; and
then curing the blanket by heating and. drying same, in situ, on said surface;
wherein the biosoluble inorganic fibers comprise about 50 wt % to about 82 wt % of total SiO2, ZrO2, Al2O3 and TiO2, and about 18 wt % to about 50 wt % of total alkali metal oxides and alkaline earth metal oxides.

US Pat. No. 9,360,113

SEALING MATERIAL AND METHOD FOR PRODUCING SAME

NICHIAS CORPORATION, Tok...

1. A sealing material, comprising only one metal plate and a foamed rubber layer formed on both surfaces of the metal plate,
wherein the metal plate has a thickness of from 0.1 to 0.3 mm, the foamed rubber layer has a closed cell rate of 50% or more,
the foamed rubber layer is formed by foaming a rubber composition layer excluding a microcapsule-type foaming agent, and a
surface of the foamed rubber layer has a maximum height Rz determined by a method in conformity to JIS B 0601-2001 of 40 ?m
or less.
US Pat. No. 9,156,731

INORGANIC FIBERS

NICHIAS CORPORATION, Tok...

1. Inorganic fibers comprising:
(a) 39 mass% to 66 mass% of Al2O3;

(b) 26 mass% to 42 mass% of CaO; and
(c) 8 mass% to 28 mass% of SiO2, wherein the total content of Al2O3, CaO and SiO2 is 98 mass% or more of the entire fibers.

US Pat. No. 9,261,192

CYLINDER HEAD GASKET

NICHIAS CORPORATION, Tok...

1. A cylinder head gasket, comprising:
a cylinder head-side main member,
a cylinder block-side main member, and
middle members that are sandwiched between the cylinder head-side main member and the cylinder block-side main member;
the middle members being composed of a first middle member and a second middle member that is separated and distinct from
the first middle member,

the first middle member being a metal plate that includes cylinder hole rim portions encircling cylinder holes to a particular
width, latching tangs that project outward from a periphery of the cylinder hole rim portions, and beads surrounding the cylinder
holes being formed in the cylinder hole rim portions, the metal plate either forming separated items, one at each cylinder
hole, or else forming an integrated item connected between the cylinder holes, the first middle member being latched by the
latching tangs being inserted and bent into latching holes either in the cylinder head-side main member or in the cylinder
block-side main member,

the second middle member being a metal plate that is disposed on the outside of the latching tangs of the first middle member
and has an oil hole and a bolt hole, and

the thickness of the first middle member being greater than that of the second middle member.
US Pat. No. 9,193,846

GASKET MATERIAL

NICHIAS CORPORATION, Tok...

1. A gasket material comprising a steel plate and a foamed rubber layer formed on one or both sides of the steel plate,
wherein the foamed rubber layer is obtained from a rubber composition consisting of at least one of NBR, H-NBR or functional
group-modified NBR, as a rubber compound; a quinoid-based crosslinking agent; a foaming agent; optionally stearic acid; optionally
zinc oxide; optionally carbon black; optionally an antioxidant; and optionally a crosslinking accelerator;

wherein the foamed rubber layer has a quinoid crosslinking structure and a thickness before foaming of 70 ?m to 200 ?m.

US Pat. No. 9,162,916

DISK ROLL AND BASE MATERIAL THEREOF

NICHIAS CORPORATION, Tok...

1. A disk roll base material comprising ceramic fibers, an inorganic binder and scaly silica, wherein the ceramic fibers comprise
70 wt % or more and 80 wt % or less of alumina and 30 wt % or less and 20 wt % or more of silica.

US Pat. No. 9,637,413

DISK ROLL AND SUBSTRATE THEREFOR

NICHIAS CORPORATION, Tok...

1. A base material for a disk roll, the base material comprising:
5 to 9 wt % of ceramic fibers, 20 to 40 wt % of kibushi clay, 2 to 20 wt % of bentonite and 40 to 60 wt % of mica,
wherein the amount of shots having a diameter of 45 ?m or more in the ceramic fibers is 5 wt % or less.

US Pat. No. 9,388,008

BASE MATERIAL FOR DISK, PROCESS FOR PRODUCING THE SAME, AND DISK ROLL

Nichias Corporation, Tok...

1. A disk roll comprising: a rotating shaft; and
a plurality of ring-shaped disks that are fitted on the rotating shaft by insertion; the disks comprising,
inorganic fibers which are amorphous or have a degree of crystallinity of 50% or lower and have an average fiber diameter
of 4 to 7 ?m, and

at least one inorganic filler selected from mica, Kibushi clay, bentonite, alumina, cordierite, kaolin clay, talc, and combinations
thereof,

the disks having a recovery ratio of 10 to 100%, and
the total of the inorganic fibers and the at least one inorganic filler being 90% by mass or more.

US Pat. No. 9,068,654

GASKET

NICHIAS CORPORATION, Tok...

1. A gasket that is held between opposite flange joint surfaces with a bolt, the gasket comprising a combination of:
a complex material with a rubber material formed on one or both sides of a steel plate, the complex material having a bead,
wherein the bead includes the steel plate and the rubber material, and

a circular metal plate arranged at a bolt portion with a through-hole where a shank of the bolt penetrates and a bearing corresponding
portion that corresponds to a bearing of the bolt around the through-hole; wherein

the complex material includes a metal plate overlapping portion that is overlapped with the circular metal plate,
the circular metal plate includes a complex material overlapping portion, which is formed away from the through-hole of the
circular metal plate, and which is overlapped with the complex material extended from the bearing corresponding portion, and

the complex material overlapping portion overlaps with the metal plate overlapping portion and the complex material overlapping
portion and the metal plate overlapping portion are joined with each other only at a joint located away from the through-hole
of the circular metal plate so that the complex material overlapping portion and the metal plate overlapping portion are joined
on the outside of the flange joint surface.

US Pat. No. 9,604,865

BASE MATERIAL FOR DISK PROCESS FOR PRODUCING THE SAME, AND DISK ROLL

NICHIAS CORPORATION, Tok...

1. A process for producing a base material for obtaining therefrom ring-shaped disks for use in forming a disk roll, the process
comprising the steps of:
(1) forming a raw slurry material consisting essentially of more than 30% by mass to about 70% by mass of mullite fibers comprising
Al2O3 and SiO2 in a ratio that Al2O3:SiO2 is from about 60:about 40 to about 99:about 1, about 2% by mass to about 30% by mass of Kibushi clay, 2% by mass to 20% by
mass of bentonite, more than 25% by mass to about 40% by mass of mica, and one or more members selected from an organic binder,
organic fibers and a flocculant,

(2) forming the raw slurry material of step (1) into a platy shape, and
drying the plate formed in step (2) thereby producing a base material.
US Pat. No. 9,067,832

INORGANIC FIBROUS MOLDED REFRACTORY ARTICLE, METHOD FOR PRODUCING INORGANIC FIBROUS MOLDED REFRACTORY ARTICLE, AND INORGANIC FIBROUS UNSHAPED REFRACTORY COMPOSITION

NICHIAS CORPORATION, Tok...

1. An inorganic fibrous shaped refractory article comprising
27 to 63 mass % of bio-soluble inorganic fibers having a dissolution ratio in a physiological saline at 40° C. of 1 mass %
or more, the bio-soluble inorganic fibers being alkaline-earth metal silicate fibers comprising:

20 to 40 wt % of total of CaO and MgO, and
60 to 80 wt % of SiO2;

27 to 63 mass % of at least one inorganic powder having a needle-like crystal structure and selected from wollastonite powder,
sepiolite powder, and attapulgite powder, and

3 to 18 mass % of a binder,
wherein the article comprises the bio-soluble inorganic fibers, the inorganic powder having a needle-like crystal structure
and the binder in a total amount of at least 90 mass %.

US Pat. No. 9,340,459

DISK ROLL AND BASE MATERIAL THEREOF

NICHIAS CORPORATION, Tok...

1. A disk comprising ceramic fibers, an inorganic binder and scaly silica, wherein the ceramic fibers comprise 70 wt % or
more and 80 wt % or less of alumina and 30 wt % or less and 20 wt % or more of silica.

US Pat. No. 9,149,851

METALLIC MOLDED SHEET AND HEAT SHIELDING COVER

NICHIAS CORPORATION, Tok...

1. A process for producing a metallic molded sheet, said process comprising:
a step of providing a metallic sheet having a thickness of 0.2 to 0.5 mm;
a step of passing the metallic sheet between a pair of first corrugating gear rolls having on their respective surfaces teeth
which are formed along an axial direction of the first corrugating gear rolls and are meshed with each other in the form of
gears, to thereby obtain a metallic molded sheet having first waveforms;

a step of passing the metallic molded sheet having the first waveforms between a pair of second corrugating rolls having on
their respective surfaces teeth which are formed along an axial direction of the second corrugating gear rolls and are meshed
with each other in the form of gears, in such a way that ridge lines of the first waveforms and ridge lines of the teeth of
the second corrugating gears rolls perpendicularly intersect each other; and

defining a roll gap between bottom lands of one of the second corrugating gear rolls and top lands of the other of the second
corrugating gear rolls that is wider than a roll gap between bottom lands of one of the first corrugating gear rolls and top
lands of the other of the first corrugating gear rolls.

US Pat. No. 9,982,831

THERMAL INSULATION AND METHOD OF PRODUCING THE SAME

NICHIAS CORPORATION, Tok...

1. A method of producing a thermal insulation, comprising:dry mixing a raw material for a thermal insulation and at least one of an alkaline-earth metal hydroxide and an alkali metal hydroxide, the raw material comprising silica fine particles each having an average particle diameter of 50 nm or less and reinforcement fibers;
subjecting the dry mixture to dry-press forming to obtain a dry-pressed compact, the dry-pressed compact being one formed body wherein the silica fine particles, the reinforcement fibers and the at least one of an alkaline-earth metal hydroxide and an alkali metal hydroxide being mixed, the at least one of an alkaline-earth metal hydroxide and an alkali metal hydroxide being 0.1 to 10 parts by weight with respect to 100 parts by weight of the raw material; and
curing the dry-pressed compact at a relative humidity of 70% or more.

US Pat. No. 9,579,813

CUTTING APPARATUS

NICHIAS CORPORATION, Tok...

1. A cutting apparatus comprising:
a workpiece fixing jig that supports a longitudinal hollow resin molded product as a workpiece so as to hold an outer peripheral
surface of the workpiece between two half cylindrical members from opposite sides and rotates the workpiece while fixing the
workpiece;

rotary drive means for driving and rotating the workpiece fixing jig;
support means for supporting the workpiece fixing jig while rotating along with rotation of the workpiece fixing jig;
a cutter knife that cuts the rotating workpiece at least at axially opposite ends of the workpiece; and
slide moving means for slidably moving the cutter knife, wherein
connection between the rotary drive means and the workpiece fixing jig is achieved by meshing of a gear of the rotary drive
means with a gear of the workpiece fixing jig.

US Pat. No. 9,302,947

INORGANIC FIBER AND PROCESS FOR MANUFACTURING SAME

NICHIAS CORPORATION, Tok...

1. A method for producing inorganic fiber, the method comprising the steps of:
preparing a spinning raw material liquid that comprises an aluminum source, a calcium source, a silicon source and a spinning
auxiliary, wherein the content of the spinning auxiliary is, in terms of solid matter, 3 parts by mass or more relative to
100 parts by mass of the total of the aluminum source, the calcium source and the silicon source;

spinning the spinning raw material liquid by a sol-gel method to obtain crude inorganic fiber; and
firing the crude inorganic fiber to produce inorganic fiber that comprises 35 mass % to 88 mass % of Al2O3, 3 mass % to 45 mass % of CaO and 5 mass % to 40 mass % of SiO2 in which the total of Al2O3, CaO and SiO2 is 97 mass % or more of the entire fiber.

US Pat. No. 9,932,264

BIO-SOLUBLE INORGANIC FIBER

NICHIAS CORPORATION, Tok...

1. Inorganic fibers comprising the following composition, SiO2, MgO and CaO being main components:SiO2: 73.6 wt % to 85.9 wt %
MgO: 9.0 wt % to 15.0 wt %
CaO: 5.1 wt % to 9.4 wt %
Al2O3: 0 wt % or more and less than 2.3 wt %
Fe2O3: 0 wt % to 0.50 wt %
SrO: less than 0.1 wt %.

US Pat. No. 9,604,867

HEAT-RESISTANT ROLL, PRODUCTION METHOD THEREOF, AND METHOD OF PRODUCING SHEET GLASS USING HEAT-RESISTANT ROLL

NICHIAS CORPORATION, Tok...

1. A heat-resistant roll comprising a roll portion containing 5% by weight or more of clay, wherein:
a surface part of the roll portion is made denser compared with an inside of the roll portion,
the surface part has an arithmetic average surface roughness Ra measured by a method defined by JIS B 0601-1994 of 5.0 ?m
or less,

the surface art of the roll portion is made of a material containing 5% by weight or more of clay;
the roll portion contains 90% by weight or more of an inorganic fiber, an inorganic filler and the clay in total; and
the inorganic filler consists of at least one selected from the group of mica, wollastonite, silica and alumina.

US Pat. No. 9,380,649

JACKET HEATER AND METHOD FOR ATTACHING SAME

NICHIAS CORPORATION, Tok...

1. A jacket heater having a heating element built therein, the jacket heater comprising:
a metal foil, the metal foil having a thickness of 20 to 100 ?m;
a support disposed adjacently to the metal foil;
the heating element having a watt density of 0.15 W/cm2 or more, the heating element being supported by the support;

a thermal insulator disposed adjacent to the heating element; and
a surrounding body which surrounds the metal foil, the support, the heating element, and the thermal insulator,
wherein the support is formed of a cloth made of inorganic fibers,
the surrounding body includes an inner-layer material and an outer-layer material,
the inner-layer material is disposed on the metal foil on a side opposite to the support,
the outer-layer material is disposed on the thermal insulator on a side opposite to the heating element,
the surrounding body is configured such that peripheral edge parts of the inner-layer material and the outer-layer material
are bonded to each other,

the inner-layer material and the outer-layer material each have a thickness of 0.1 to 8 mm, and
the inner-layer material, the metal foil, the support, the heating element, the thermal insulator, and the outer-layer material
are stacked in a layered structure and stacked in order from an inner side to an outer side of the jacket heater.

US Pat. No. 9,611,775

CATALYTIC CONVERTER HOLDING MATERIAL

Nichias Corporation, Tok...

16. A catalytic converter holding mat that is to be located in a gap between a tubular catalyst carrier and a casing that
houses the catalyst carrier, the catalytic converter holding mat comprising:
a retaining section comprising first inorganic fibers having a thermal shrinkage ratio at 1000° C. of 1% or less, and extending
in a longitudinal direction of the holding mat;

an insulation section laterally adjacent to the retaining section in a plane view of the holding mat, and comprising second
inorganic fibers having a thermal shrinkage ratio at 1,000° C. of more than 1%, and extending in the longitudinal direction
of the holding mat; and

a protecting section that is located over the insulation section and is not located over the retaining section so that it
will be located, between the insulation section and an outer side of the catalyst carrier and not between the retaining section
and the outer side of the catalyst carrier.

US Pat. No. 9,909,046

HEAT STORAGE MEMBER AND METHOD FOR MANUFACTURING THE SAME

MITSUBISHI HEAVY INDUSTRI...

1. A heat storage member, comprising:
a honeycomb structure having a plurality of cells, wherein
each of the cells is filled with capsules and a heat conductive filler;
each of the capsules contains a heat storage material;
the heat conductive filler is 10 to 45 parts by weight relative to 100 parts by weight of the capsules containing the heat
storage material;

the heat conductive filler contains a heat-conductive material and an adhesive agent;
the heat-conductive material is a carbon material or metal;
the adhesive agent is an inorganic binder or a thermosetting resin; and the heat conductive filler has a heat conductivity
which is in a range of 5 W/(m·K) to 20 W/(m·K).

US Pat. No. 9,759,112

RETAINER FOR GAS PROCESSING DEVICE, GAS PROCESSING DEVICE, AND MANUFACTURING METHODS THEREFOR

Nichias Corporation, Tok...

1. A gas processing device comprising:
a processing structure;
a metal casing that houses the processing structure; and
a holding mat comprising inorganic fibers and located between the processing structure and the casing, the holding mat comprising
in a thickness direction thereof extending between the processing structure and the casing:

an outer adhesive layer that comprises a compound that comprises a structural unit represented by a general formula (I), the
outer adhesive layer holding the compound on and between the inorganic fibers that form an outer surface of the holding mat
and an area around the outer surface,


wherein R1 is independently a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a
phenyl group, or a hydroxyl group, and n is an integer equal to or larger than 1; and

another layer that does not comprise said compound, an inner surface of the casing contacting the outer adhesive layer of
the holding mat.

US Pat. No. 9,638,325

MATERIAL FOR GASKET

NICHIAS CORPORATION, Tok...

1. A material for a gasket, wherein a chromate or non-chromate film, a phenol resin primer layer and a polyol-crosslinked
fluororubber layer are formed on one or both surfaces of a steel plate in this sequence from the side of the steel plate;
the polyol-crosslinked fluororubber layer is a rubber layer obtained by applying a fluororubber composition that comprises
fluororubber, a polyol-based cross-linking agent, an amine-based cross-linking accelerator and silica to the phenol resin
primer layer, followed by heating;

the polyol-based cross-linking agent is selected from the group consisting of polyhydroxy aromatic compounds selected from
2,2-bis(4-hydroxyphenyl)propane, 2,2-bis(4-hydroxyphenyl)perfluoropropane, 1,3-dihydroxybenzene, 4,4?-dihydroxydiphenyl, 4,4?-dihydroxydiphenylmethane,
and 2,2-bis(4-hydroxyphenyl)butane; and alkali metal salts and alkaline earth metal salts thereof;

the amine-based cross-linking accelerator is a tertiary amine or a salt of a tertiary amine having an acid dissociation constant
(pKa) of 8.5 to 14, obtained by a reaction between a tertiary amine and an acid;

the fluororubber is at least one selected from the group consisting of a vinylidene fluoride/hexafluoropropylene-based copolymer,
a vinylidene fluoride/hexafluoropropylene/tetrafluoroethylene-base copolymer, and a tetrafluoroethylene/propylene/vinylidene
fluoride-based copolymer;

a content of the silica in the polyol-crosslinked fluororubber layer is 10 to 40 parts by mass per 100 parts by mass of the
fluororubber.

US Pat. No. 9,593,798

PIPE COVER, PIPE STRUCTURE AND VEHICLE

NICHIAS CORPORATION, Tok...

1. A pipe cover that is capable of covering an outer periphery of a pipe, the pipe cover comprising:
a base that is formed of a tubular heat insulator, and a surface member that covers an outer surface of the base, a heat radiation
section and a heat radiation-suppressing section being provided on an outer surface of the surface member,

wherein the heat radiation section, formed of a ceramic thin film or a carbon thin film, is provided on a portion of the outer
surface of the surface member, and the heat radiation-suppressing section is provided on a portion of the outer surface of
the surface member opposite from the heat radiation section, and

an emissivity of the heat radiation section at a wavelength of 2 to 15 ?m being higher than an emissivity of the heat radiation-suppressing
section at a wavelength of 2 to 15 ?m,

wherein the surface member is formed of a metal thin film, and the heat radiation-suppressing section is formed of a coating
film of an antioxidant that suppresses oxidation of a metal that forms the surface member.

US Pat. No. 9,796,634

HOLDING MATERIAL FOR GAS TREATMENT DEVICE, GAS TREATMENT DEVICE, AND PRODUCTION PROCESSES THEREFOR

NICHIAS CORPORATION, Tok...

1. A holding material for a gas treatment device, which is arranged, in the gas treatment device comprising a treatment structure
and a casing for housing the treatment structure, between the treatment structure and the casing,
the holding material comprising silica fibers at a content of 85 mass % or more with respect to the total mass of the holding
material and an alumina sol in an amount of 3 parts by mass or more in terms of a solid content with respect to 100 parts
by mass of the silica fibers,

wherein a content of alumina in the silica fibers is from 0 to 3 mass % with respect to the total mass of the silica fiber.

US Pat. No. 9,466,515

HEAT TREATMENT FURNACE AND HEAT TREATMENT APPARATUS

NICHIAS CORPORATION, Tok...

1. A heat treatment furnace, comprising:
a processing vessel configured to accommodate therein at least one object to be processed;
a cylindrical heat insulating member covering a periphery of the processing vessel; and
a heater disposed along a flat inner circumferential surface of the heat insulating member having no groove,
wherein the heater includes strip-shaped corrugated heater elements spirally disposed along the flat inner circumferential
surface of the heat insulating member, each of the heater elements having valley portions protruding outward and mountain
portions protruding inward,

wherein the heater elements constitute a single spiral shaped member surrounding the processing vessel,
wherein the valley portions of the heater elements are supported by release prevention valley portion support pins and the
mountain portions of the heater elements are supported by collapse prevention mountain portion support pins, each of the release
prevention valley portion support pins including at least one release prevention member buried in the heat insulating member
to prevent the prevention valley portion support pin from being released from the heat insulating member and each of the collapse
prevention mountain portion support pins including at least one release prevention member buried in the heat insulating member
to prevent the collapse prevention mountain portion support pin from being released from the heat insulating member,

wherein the valley portions are arranged more inward compared to the flat inner circumferential surface of the heat insulating
member and the mountain portions are arranged more inward compared to the valley portions, and

wherein each top end portion of the valley portions and the mountain portions of the heater elements is made by a bent line,
the bent line being inclined with respect to a widthwise direction of the heater elements.

US Pat. No. 10,143,042

HEATING DEVICE

NICHIAS CORPORATION, Tok...

1. A heating device comprising:a heater; and
a support member that supports the heater and comprises bio-soluble inorganic fibers,
wherein the bio-soluble inorganic fibers are Mg silicate fibers having the following composition or Ca silicate fibers having the following composition:
[Mg silicate fibers]
SiO2: 66 to 82 wt %
CaO: 1 to 9 wt %
MgO: 10 to 30 wt %
Al2O3: 3 wt % or less
Other oxides: less than 2 wt %
[Ca silicate fibers]
SiO2: 66 to 82 wt %
CaO: 10 to 34 wt %
MgO: 3 wt % or less
Al2O3: 5 wt % or less
Other oxides: less than 2 wt %
wherein the heating device comprises any coating of the following configurations (1) to (3); and due to the coating, the bio-soluble inorganic fibers do not contact directly the heater or the contact of the bio-soluble inorganic fibers with the heater is reduced compared with a heater without the coating:(1) at least surfaces of the support member that contact the heater are coated;(2) bio-soluble inorganic fibers that are present on at least surfaces of the support member that contact the heater are coated; and(3) the heater is coated.

US Pat. No. 9,950,963

THERMAL INSULATOR AND METHOD OF MANUFACTURING THE SAME

NICHIAS CORPORATION, Tok...

1. A method of manufacturing a thermal insulator, comprising:a curing step of curing a dry pressed compact including metal oxide fine particles with an average particle diameter equal to or smaller than 50 nm and a reinforcing fiber under a pressurized vapor saturated atmosphere at a temperature equal to or higher than 100° C.,
wherein the metal oxide fine particles include alumina fine particles.

US Pat. No. 9,797,536

ARTICLE HAVING FLUORORESIN JOINT, AND METHOD FOR PRODUCING SUCH ARTICLE

NICHIAS CORPORATION, Tok...

1. An article, comprising:
a joint portion comprising:
a porous first layer of a first fluororesin;
a second layer of a second fluororesin having a melting point lower than a melting point of the first fluororesin; and
a non-porous third layer formed between the first layer and the second layer, the non-porous third layer comprising the first
fluororesin;

an inclusion; and
an exterior material covering the inclusion;
wherein:
the exterior material comprises at least one or more resin sheets having end portions to be joined to each other;
one of the at least one or more resin sheets is a porous sheet made of the first fluororesin;
the at least one or more resin sheets comprise a portion in which at least one of the end portions to be joined comprises
the porous sheet, the portion being joined so that the portion comprises the joint portion, and the end portions are bonded
to each other;

the inclusion is a heat insulating material; and
the article is a heat insulation product.

US Pat. No. 10,138,775

HOLDING MATERIAL, METHOD FOR PRODUCING SAME, AND GAS TREATMENT DEVICE USING SAME

NICHIAS CORPORATION, Tok...

1. A holding material comprising:a first mat comprising inorganic fibers of only a first type, the first type of inorganic fibers being alumina fibers that comprise 60 wt % or more of alumina and 40 wt % or less of silica; and
a second mat comprising inorganic fibers of only a second type, the second type of inorganic fibers being silica fibers that comprise 60 wt % or more of silica and 40 wt % or less of alumina, and having a surface pressure higher than that of the first mat as measured at a gap bulk density of 0.30 g/cm3,
wherein the holding material is configured to be placed in a gap between a processing structure and a casing in a gas treatment device with the processing structure disposed in the casing, such that the first mat of the holding material comes in contact with the processing structure.
US Pat. No. 9,963,380

BIOSOLUBLE INORGANIC FIBER

NICHIAS CORPORATION, Tok...

1. Inorganic fibers comprising the following composition, SiO2, Al2O3, MgO and CaO being main components, and the inorganic fibers being produced by a melting method:SiO2: 15.0 wt % or more and 35.0 wt % or less
Al2O3: 40.0 wt % or more and 60.0 wt % or less
MgO: 5.0 wt % or more and 20.0 wt % or less
CaO: 8.0 wt % or more and 20.0 wt % or less
Fe2O3: 0.0 wt % or more and less than 1.0 wt %
total of the amounts of MgO and CaO: more than 18.0 wt %.
US Pat. No. 10,253,917

INSULATION MATERIAL AND METHOD OF MANUFACTURING SAME

NICHIAS CORPORATION, Tok...

1. A heat insulation material obtained by sintering a raw material comprising:67 to 73 weight % of alumina particles having an average particle diameter of 100 nm or smaller,
2 to 8 weight % of at least one crystal transition suppression material selected from the group consisting of silica particles and silica fume,
10 to less than 25 weight % of a radiation scattering material of zircon, and
2 to 9 weight % of one or more fibers selected from the group consisting of silica-alumina-magnesia fibers and alumina fibers;
wherein an amount of the alumina particles, the crystal transition suppression material, the fibers and the radiation scattering material in the raw material is 95 weight % or more in total, and
wherein the heat insulation material exhibits a coefficient of linear shrinkage at a heating temperature of 1200° C. for 24 hours that is 5% or less.

US Pat. No. 10,253,128

CROSSLINKING AGENT AND FLUORINE-CONTAINING AROMATIC COMPOUND

NICHIAS CORPORATION, Tok...

1. A crosslinking agent comprising:a compound represented by a formula (1),

wherein R1 is a fluorine atom, an alkyl group having 1 to 6 carbon atoms, R2, and R3 are independently a fluroine atom, an alkyl group, or a fluoroalkyl group,
wherein a plurality of R1 are identical or different, a plurality of R2 are identical or different, and a plurality of R3 are identical or different, provided that at least one of R1, R2, and R3 is a fluorine atom or a fluorine atom-containing group and at least one of R1, R2, and R3 is an alkyl group, a fluoroalkyl group,
wherein m is an integer of from 2 to 6, l is an integer of from 0 to 2, and
wherein each hydrogen on the benzene ring(s) is optionally substituted with a substituent.

US Pat. No. 10,233,370

MOLDED BODY AND METHOD FOR PRODUCING SAME

NICHIAS CORPORATION, Tok...

1. A formed body comprising:85 to 99.98 wt % based on the total weight of the body of a polytetrafluoroethylene or a modified polytetrafluoroethylene, the polytetrafluoroethylene being a homopolymer of tetrafluoroethylene, the modified polytetrafluoroethylene being a polytetrafluoroethylene that is modified by a perfluoroalkylvinylether; and
0.02 to 15 wt % based on the total weight of the body of an unmodified polymerization inhibitor;
wherein the formed body does not comprise a sulfur-containing compound.

US Pat. No. 10,215,325

HEAT INSULATION MATERIAL AND METHOD OF MANUFACTURING HEAT INSULATION MATERIAL

NICHIAS CORPORATION, Tok...

1. A thermal insulation material produced by hot-pressing a plurality of prepregs in a state in which the plurality of prepregs are stacked, each of the plurality of prepregs comprising heat-resistant paper impregnated with a thermosetting resin,the thermal insulation material comprising 32 to 64 mass % of a fibrous material and 36 to 68 mass % of the thermosetting resin and having a density of 800 to 1650 kg/m3,
wherein the heat-resistant paper is paper made of glass fibers.

US Pat. No. 10,265,922

FLUOROPOLYMER MOLDED ARTICLE

CHEMOURS-MITSUI FLUOROPRO...

1. An injection molded article having a trace of a gate at the time of molding and having a projection area of 1100 cm2 or more and being obtained by injection molding a composition containing a heat-meltable fluoropolymer,wherein the composition contains a tetrafluoroethylene/fluoroalkoxytrifluoroethylene copolymer as the heat-meltable fluoropolymer, and further a polytetrafluoroethylene in an amount of 0.05 to 10% by weight, relative to the composition,
wherein the projection area of the article is obtained by orthogonal projection of the injection molded article in an injection direction which is a direction perpendicular to the trace of the gate,
wherein the injection area diffusion ratio in a direction orthogonal to an injection direction is 3000 or larger, and
wherein no crack both of fracture and cleavage of the injection molded article is detected when a surface having a size of 1 cm×1 cm and a cross-section of the injection molded article at three positions within 5 cm from a gate center are observed using a polarizing microscope, in a magnification of 100 times and 500 times, respectively.

US Pat. No. 10,247,077

RETENTION MATERIAL FOR GAS PROCESSING DEVICE

NICHIAS CORPORATION, Tok...

1. A retention material for a gas processing device comprising a processing structure and a casing for accommodating the processing structure,the retention material being to be arranged between the processing structure and the casing,
wherein
the retention material comprises inorganic fibers and no inorganic intumescent materials,
the inorganic fibers are alumina fibers comprising 70 wt % to 75 wt % of alumina and 30 wt % to 25 wt % of silica, and
in a test of repeating a cycle of compressing the retention material until a bulk density of the retention material becomes a prescribed compression bulk density, followed by retaining for 10 seconds, and then releasing until a bulk density of the retention material becomes a release bulk density that is smaller by 12% than said prescribed compression bulk density; a release surface pressure of the retention material after repeating the cycle 2500 times and the compression bulk density of the retention material satisfies the following relationship:
P?17.10×D?1.62wherein P is the release surface pressure (N/cm2) and D is the compression bulk density (g/cm3).