Patents by Inventor Naomi Nishiki
Naomi Nishiki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11602079Abstract: A heat sink includes a graphite plate, two base materials each of which is disposed adjacent to the graphite plate, and a fixing member, in which the graphite plate has a strip shape and includes a fin portion and a base portion provided at one end of the fin portion, the base material includes a hole into which the fixing member can be inserted, the fixing member is inserted into the holes of the two base materials so that the two base materials are disposed to be adjacent to both sides of the base portion in a thickness direction, the base portion is in close contact with the base material adjacent to each other on both sides of the base portion in the thickness direction, the adjacent base materials are crimped and fixed by the fixing member in a state of being in close contact with each other, and in a case where a surface roughness of the fin portion is defined as Ra1, a surface roughness of the base material is defined as Ra2, and a surface roughness of the base portion is defined as Ra3, a relationshipType: GrantFiled: July 2, 2021Date of Patent: March 7, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Ryou Kuwabara, Motonori Shimamura, Naomi Nishiki, Masato Mori
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Publication number: 20220039286Abstract: A heat sink includes a graphite plate, two base materials each of which is disposed adjacent to the graphite plate, and a fixing member, in which the graphite plate has a strip shape and includes a fin portion and a base portion provided at one end of the fin portion, the base material includes a hole into which the fixing member can be inserted, the fixing member is inserted into the holes of the two base materials so that the two base materials are disposed to be adjacent to both sides of the base portion in a thickness direction, the base portion is in close contact with the base material adjacent to each other on both sides of the base portion in the thickness direction, the adjacent base materials are crimped and fixed by the fixing member in a state of being in close contact with each other, and in a case where a surface roughness of the fin portion is defined as Ra1, a surface roughness of the base material is defined as Ra2, and a surface roughness of the base portion is defined as Ra3, a relationshipType: ApplicationFiled: July 2, 2021Publication date: February 3, 2022Inventors: RYOU KUWABARA, MOTONORI SHIMAMURA, NAOMI NISHIKI, MASATO MORI
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Patent number: 11040883Abstract: Provided is a graphite plate, consisting essentially of: graphite; and pores, wherein said graphite plate has a porosity from 1% to 30%. Further provided is a method for producing a graphite plate, including: applying welding pressure to at least one glass-like carbon material in a state in which said at least one glass-like carbon material is maintained in an inert atmosphere under heating conditions, to produce a graphite plate having a porosity from 1% to 30%.Type: GrantFiled: April 12, 2017Date of Patent: June 22, 2021Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hidetoshi Kitaura, Naomi Nishiki, Atsushi Tanaka, Kimiaki Nakaya
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Patent number: 10946617Abstract: Provided is a graphite laminated body having excellent properties such as excellent mechanical properties, excellent heat resistance, and excellent thermal conductivity. In particular, provided is a graphite laminated body comprising a graphite film, a non-thermoplastic polyimide film, and an adhesive layer for bonding the graphite film to the non-thermoplastic polyimide film, the adhesive layer being made of a thermoplastic polyimide or a fluororesin.Type: GrantFiled: October 27, 2014Date of Patent: March 16, 2021Assignees: DU PONT-TORAY CO., LTD., PANASONIC CORPORATIONInventors: Naofumi Yasuda, Noriko Toida, Naomi Nishiki, Kazuhiro Nishikawa
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Patent number: 10435607Abstract: A graphite material has a flexible part and can be utilized as a heat-conveying material in a narrow space. The graphite material, includes: at least one heat-conveying part; and a flexible part. A method for producing a graphite material, includes: (i) subjecting at least one film serving as a material to a heat treatment to obtain at least one carbonaceous film; (ii) providing a monolayer or multilayer structure including the at least one carbonaceous film; and (iii) applying heat and pressure to at least one part of the monolayer or multilayer structure in an inert atmosphere.Type: GrantFiled: March 14, 2017Date of Patent: October 8, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Atsushi Tanaka, Naomi Nishiki, Hidetoshi Kitaura, Kimiaki Nakaya
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Patent number: 10357942Abstract: A graphite-silicon composite, including: graphite; silicon; and an intermediate layer that is located between the graphite and the silicon, wherein the intermediate layer includes oxygen, carbon and silicon. Furthermore, provided is a method for producing a graphite-silicon composite, including: layering graphite and silicon; and heating the layered graphite and silicon while applying pressure to them, wherein, during heating the layered graphite and silicon while applying pressure to them, an oxygen concentration in the atmosphere is adjusted to 0.2 vol %, the applied pressure is adjusted to 24.5 MPa or higher, and the heating temperature is adjusted to 1260° C. or higher.Type: GrantFiled: July 9, 2016Date of Patent: July 23, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kazuhiro Nishikawa, Naomi Nishiki, Hidetoshi Kitaura, Atsushi Tanaka, Kimiaki Nakaya, Henrik Rønnow
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Publication number: 20190120568Abstract: A graphite heat sink with light weight and high mechanical strength includes graphite fins and a metal press-fitted and fixed to a part of a surface of the graphite fin.Type: ApplicationFiled: October 2, 2018Publication date: April 25, 2019Inventors: RYOU KUWABARA, NAOMI NISHIKI, MASATO MORI, TAKESHI NISHIKAWA
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Patent number: 10085495Abstract: The clothing having a frontal land and a rear land includes: a thermal storage unit provided on at least one portion of the frontal land of the clothing; and a planar thermoconductive sheet located in a planar between the frontal land and the rear land, the planar thermoconductive sheet having a thermal conduction path to the thermal storage unit, and the planar thermoconductive sheet being higher in thermoconductivity than the frontal land and the rear land. The planar thermoconductive sheet includes a resin component and graphite particles. Basal plane of each graphite particle is parallel to the direction of the plane of the planar thermoconductive sheet.Type: GrantFiled: February 8, 2013Date of Patent: October 2, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hidetoshi Kitaura, Naomi Nishiki, Kazuhiro Nishikawa, Kimiaki Nakaya, Atsushi Tanaka
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Publication number: 20180218920Abstract: A graphite heat sink that is light in weight, excellent in thermal conductivity and high in mechanical strength. A graphite heat sink includes two or more graphite joined plates and solder joining layers which are alternately stacked, in which each graphite joined plate includes plural pieces of graphite plates and a solder joining portion, surfaces of the plural pieces of graphite plates parallel to a thickness direction and the solder joining portion are joined to one another, and the solder joining layer and the solder joining portion are formed of the same solder material.Type: ApplicationFiled: January 9, 2018Publication date: August 2, 2018Inventors: RYOU KUWABARA, NAOMI NISHIKI, HIDETOSHI KITAURA, ATSUSHI TANAKA, TAKESHI NISHIKAWA
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Publication number: 20180179066Abstract: A carbon-metal composite includes a flake-like graphite powder, and a metal covering a circumferential end portion of the flake-like graphite powder to thereby improve the contact resistance of crystalline graphite, and to provide a composition containing a carbon material having improved contact resistance.Type: ApplicationFiled: October 11, 2017Publication date: June 28, 2018Inventors: NAOMI NISHIKI, HIDETOSHI KITAURA, ATSUSHI TANAKA, RYOU KUWABARA, TAKESHI NISHIKAWA
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Publication number: 20180158747Abstract: A graphite heat sink includes plate-shaped fin portions formed of a graphite material, a base portion contacting lower ends of the plate-shaped fin portions and a joining portion between the plate-shaped fin portions and the base portion, in which the plate-shaped fin portions have a thermal conductivity of 1200 W/mk or more and a thickness of 100 ?m or more, and the joining portion is formed of metal.Type: ApplicationFiled: October 4, 2017Publication date: June 7, 2018Inventors: ATSUSHI TANAKA, NAOMI NISHIKI, HIDETOSHI KITAURA, RYOU KUWABARA, TAKESHI NISHIKAWA
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Publication number: 20170320740Abstract: Provided is a graphite plate, consisting essentially of: graphite; and pores, wherein said graphite plate has a porosity from 1% to 30%. Further provided is a method for producing a graphite plate, including: applying welding pressure to at least one glass-like carbon material in a state in which said at least one glass-like carbon material is maintained in an inert atmosphere under heating conditions, to produce a graphite plate having a porosity from 1% to 30%.Type: ApplicationFiled: April 12, 2017Publication date: November 9, 2017Inventors: HIDETOSHI KITAURA, NAOMI NISHIKI, ATSUSHI TANAKA, KIMIAKI NAKAYA
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Patent number: 9802206Abstract: A dispersion of suspended single-layer graphene, multilayer graphene, and graphite is used. A magnetic field is applied to the dispersion to separate the single-layer graphene from the dispersion. By applying the magnetic field, the single-layer graphene, the multilayer graphene, and the graphite are situated at different locations in solvent by the difference in the diamagnetism strengths of the single-layer graphene, the multilayer graphene, and the graphite.Type: GrantFiled: May 24, 2013Date of Patent: October 31, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hidetoshi Kitaura, Naomi Nishiki, Kazuhiro Nishikawa, Kimiaki Nakaya, Atsushi Tanaka
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Publication number: 20170275515Abstract: A graphite material has a flexible part and can be utilized as a heat-conveying material in a narrow space. The graphite material, includes: at least one heat-conveying part; and a flexible part. A method for producing a graphite material, includes: (i) subjecting at least one film serving as a material to a heat treatment to obtain at least one carbonaceous film; (ii) providing a monolayer or multilayer structure including the at least one carbonaceous film; and (iii) applying heat and pressure to at least one part of the monolayer or multilayer structure in an inert atmosphere.Type: ApplicationFiled: March 14, 2017Publication date: September 28, 2017Inventors: ATSUSHI TANAKA, NAOMI NISHIKI, HIDETOSHI KITAURA, KIMIAKI NAKAYA
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Patent number: 9746259Abstract: A heat conductor includes a first layer containing a first resin component and first flake graphite fillers each having a basal plane; and a second layer containing a second resin component and second flake graphite fillers each having a basal plane. The heat conductor is a laminate including the first layer and the second layer, an average of first angles in the first layer is 35 degrees or smaller, each of the first angles is an acute angle between the basal plane of a corresponding one of the first flake graphite fillers and a first laminated surface of the laminate, an average of second angles in the second layer ranges from 55 degrees to 90 degrees, and each of the second angles is an acute angle between the basal plane of a corresponding one of the second flake graphite fillers and a second laminated surface of the laminate.Type: GrantFiled: May 15, 2015Date of Patent: August 29, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Atsushi Tanaka, Naomi Nishiki, Kazuhiro Nishikawa, Shigeki Sakaguchi, Hidetoshi Kitaura, Kimiaki Nakaya
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Patent number: 9728784Abstract: A method for producing a vitreous carbon material which can serve as a carbon material for a power storage device. In the method, a polymer material, having six-membered ring structures in its basic carbon skeleton and having a nitrogen atom, is heated at a temperature of 1000° C. to 2100° C. under an inert gas environment, and then, the polymer material is pulverized, to thereby control graphitization and crystal growth of the carbon material, thus producing a vitreous carbon material which serves as a carbon material for a power storage device.Type: GrantFiled: December 12, 2014Date of Patent: August 8, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Kiyohiro Hine, Naomi Nishiki, Akira Kano, Masahisa Fujimoto
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Publication number: 20170015560Abstract: A graphite plate has a surface roughness Ra from 10 ?m to less than 40 ?m and a surface-unevenness variation of 0.01% to 0.135% in any span 80 mm long within the surface of the graphite plate. A method for producing a graphite plate, includes r subjecting a polymer film to a heat treatment in an inert gas, wherein the heat treatment is conducted at 2400° C. to 3200° C., and a pressure of 10 kg/cm2 to 100 kg/cm2 is applied to the polymer film at 200° C. or higher.Type: ApplicationFiled: July 9, 2016Publication date: January 19, 2017Inventors: Naomi NISHIKI, Kazuhiro NISHIKAWA, Hidetoshi KITAURA, Atsushi TANAKA, Kimiaki NAKAYA
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Publication number: 20170015084Abstract: A graphite-silicon composite, including: graphite; silicon; and an intermediate layer that is located between the graphite and the silicon, wherein the intermediate layer includes oxygen, carbon and silicon. Furthermore, provided is a method for producing a graphite-silicon composite, including: layering graphite and silicon; and heating the layered graphite and silicon while applying pressure to them, wherein, during heating the layered graphite and silicon while applying pressure to them, an oxygen concentration in the atmosphere is adjusted to 0.2 vol %, the applied pressure is adjusted to 24.5 MPa or higher, and the heating temperature is adjusted to 1260° C. or higher.Type: ApplicationFiled: July 9, 2016Publication date: January 19, 2017Inventors: KAZUHIRO NISHIKAWA, NAOMI NISHIKI, HIDETOSHI KITAURA, ATSUSHI TANAKA, KIMIAKI NAKAYA
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Patent number: 9512289Abstract: An object of the present invention is to provide an anisotropic heat conductive composition comprising: resin; and graphite fillers dispersed into the resin, wherein the graphite fillers each have a maximum diameter A in parallel with a basal plane of each of the graphite fillers and a maximum length C perpendicular to the basal plane, an average of the maximum diameters A ranges from 1 ?m to 300 ?m, an average ratio of the maximum diameter A to the maximum length C represented by A/C is at least 30, a content of the graphite fillers is 20 mass % to 40 mass %, and an average of a smaller angle made by the basal plane and a sheet surface of the sheet anisotropic heat conductive composition is less than 15°.Type: GrantFiled: June 13, 2014Date of Patent: December 6, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Atsushi Tanaka, Naomi Nishiki, Kazuhiro Nishikawa, Hidetoshi Kitaura, Kimiaki Nakaya, Honami Nawa
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Patent number: 9487690Abstract: The present invention relates to an anisotropic heat conductive composition including flake graphite particles and a resin composition for the particles to be dispersed therein. When the particles have a basal plane, a maximum diameter a in a direction of the basal plane, and a thickness c perpendicular to the basal plane, a/c is 30 or more on average, and a content of the particles is more than 40 mass % and 90 mass % or less. Since the composition includes the particles having a particular shape, when it is formed into a sheet, an anisotropic heat conductive path can be efficiently created therein. Thus, the present invention can provide a molded product in sheet form, suited to have therein a heat conductive path capable of dispersing heat from a high temperature region to a low temperature region.Type: GrantFiled: November 12, 2012Date of Patent: November 8, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Atsushi Tanaka, Naomi Nishiki, Kazuhiro Nishikawa, Hidetoshi Kitaura, Kimiaki Nakaya, Katsufumi Shimanaka, Akiyoshi Azechi