Patents by Inventor Tomomichi Naka
Tomomichi Naka 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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Publication number: 20230268481Abstract: In an embodiment, a heating apparatus for heating an electrode group structure includes a chamber, a heat conduction plate, a temperature adjustment unit, a pressure adjustment unit, and a controller. In a state where the heat conduction plate is in contact with the current collectors of a plurality of the electrode group structures in a heating room inside chamber, the heat conduction plate enables heat to be conducted to the current collectors of the electrode group structures. The controller controls operation of the temperature adjustment unit and the pressure adjustment unit in a state where the heat conduction plate is in contact with the current collectors of the electrode group structures.Type: ApplicationFiled: February 20, 2023Publication date: August 24, 2023Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Tomomichi Naka
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Publication number: 20220285806Abstract: According to an embodiment, a liquid injection device includes a liquid injection chamber, a liquid injector, a pressure regulator and a controller. The liquid injection chamber accommodates a battery, including an exterior container provided with a liquid injection port, in an initial state. The liquid injector injects an electrolytic solution into the exterior container through the liquid injection port, in the liquid injection chamber. The controller controls an action of the pressure regulator to bring the liquid injection chamber to a depressurized state, where the pressure is lower than in the initial state, and then bring the liquid injection chamber to a pressurized state, where the pressure is higher than in the initial state.Type: ApplicationFiled: December 22, 2021Publication date: September 8, 2022Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Tomomichi NAKA
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Patent number: 11414788Abstract: According to one embodiment, a spinning apparatus includes a spinning head and a rotational brush. An organic material is filled up inside the spinning head, and the spinning head ejects the organic material on a surface of a base to form a sheet of the organic fiber on the surface of the base. The rotational brush includes a plurality of brush bristles and is rotated while the brush bristles are in contact with the sheet in the surface of the base. The rotational brush strips the organic fiber from a part of the sheet by the rotation.Type: GrantFiled: February 11, 2020Date of Patent: August 16, 2022Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yuma Kikuchi, Tomomichi Naka, Kenya Uchida
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Publication number: 20210376370Abstract: According to one embodiment, a constraint jig, used in manufacturing of a battery in which an electrode group is stored in an exterior container having a square shape, is provided. The constraint jig includes a plurality of metal constraint plates. The plurality of constraint plates are arrayed, and form a space in which the battery is arranged between constraint plates adjacent to each other. The plurality of constraint plates constrain the battery arranged in the space, and thus prevent an expansion of the exterior container beyond a predetermined range. Each of the constraint plates has an inner hollow, and includes an inflow port allowing a cooling fluid to flow into the inner hollow and an outflow port allowing the cooling fluid to flow out of the inner hollow.Type: ApplicationFiled: August 12, 2021Publication date: December 2, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Tomomichi NAKA
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Patent number: 11056751Abstract: According to one embodiment, a laminate includes a first active material-containing layer, a first film and a second film. The first film includes an inorganic material, and a back surface thereof is in contact with a front surface of the first active material-containing layer. The second film includes organic fibers, and one of front and back surfaces is in contact with a front surface of the first film. An absolute value of a difference between surface roughness Ra1 of the front surface of the first active material-containing layer and surface roughness Ra2 of the back surface of the first film is 0.6 ?m or less (including 0).Type: GrantFiled: March 1, 2019Date of Patent: July 6, 2021Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Ikuo Uematsu, Yuma Kikuchi, Tomomichi Naka
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Publication number: 20210071319Abstract: According to one embodiment, an electrospinning head includes a head main body and a nozzle. The nozzle projects from the head main body. A flow passage is formed inside the nozzle, and an ejection port of the flow passage is formed at a projecting end of the nozzle. A first extending portion constitutes a connecting portion of the nozzle to the head main body, and a second extending portion further projects from the first extending portion and constitutes the projecting end of the nozzle. A volume in the second extending portion excluding the flow passage is smaller than that in the first extending portion, and a dimension of the second extending portion along a projection direction is smaller than that of the first extending portion.Type: ApplicationFiled: June 23, 2020Publication date: March 11, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tomomichi NAKA, Kenya UCHIDA, Shizuo KINOSHITA
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Patent number: 10920341Abstract: An electrospinning apparatus according to an embodiment is configured to deposit a fiber on a collector or a member. The electrospinning apparatus includes a first nozzle head provided on one side of the collector or the member, and a second nozzle head provided on the side opposite to the first nozzle head with the collector or the member interposed. The first nozzle head and the second nozzle head are at a section where the collector or the member moves in a direction tilted with respect to a horizontal direction.Type: GrantFiled: March 13, 2018Date of Patent: February 16, 2021Assignee: Kabushiki Kaisha ToshibaInventors: Kenya Uchida, Ikuo Uematsu, Tomomichi Naka, Yoko Tokuno, Yuma Kikuchi
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Publication number: 20200173055Abstract: According to one embodiment, a spinning apparatus includes a spinning head and a rotational brush. An organic material is filled up inside the spinning head, and the spinning head ejects the organic material on a surface of a base to form a sheet of the organic fiber on the surface of the base. The rotational brush includes a plurality of brush bristles and is rotated while the brush bristles are in contact with the sheet in the surface of the base. The rotational brush strips the organic fiber from a part of the sheet by the rotation.Type: ApplicationFiled: February 11, 2020Publication date: June 4, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yuma KIKUCHI, Tomomichi NAKA, Kenya UCHIDA
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Publication number: 20200006732Abstract: According to one embodiment, an electrode structure is provided. The separator includes an organic fiber layer. The organic fiber layer includes an organic fiber having an aspect ratio (V1/H1) in a cross section which is 0.97 or less. The cross section intersects with a length direction of the organic fiber. The organic fiber having the aspect ratio (V1/H1) is in contact with a surface of the active material-containing layer having a roughness higher than an arithmetic mean surface roughness Ra of the active material-containing layer in the cross section. The V1 denotes a length parallel to a thickness direction of the active material-containing layer. The H1 denotes a length horizontal to an in-plane direction of the active material-containing layer.Type: ApplicationFiled: September 13, 2019Publication date: January 2, 2020Applicant: Kabushiki Kaisha ToshibaInventors: Toma Yorisaki, Yoko Tokuno, Tomomichi Naka, lkuo Uematsu
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Publication number: 20190273235Abstract: According to one embodiment, a laminate includes a first active material-containing layer, a first film and a second film. The first film includes an inorganic material, and a back surface thereof is in contact with a front surface of the first active material-containing layer. The second film includes organic fibers, and one of front and back surfaces is in contact with a front surface of the first film. An absolute value of a difference between surface roughness Ra1 of the front surface of the first active material-containing layer and surface roughness Ra2 of the back surface of the first film is 0.6 ?m or less (including 0).Type: ApplicationFiled: March 1, 2019Publication date: September 5, 2019Applicant: Kabushiki Kaisha ToshibaInventors: Ikuo UEMATSU, Yuma Kikuchi, Tomomichi Naka
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Patent number: 10392727Abstract: According to one embodiment, a nanofiber manufacturing-apparatus nozzle head includes a plurality of holes. A solution is ejected from the holes. The holes are arranged from a center of the nozzle head toward an end portion of the nozzle head. An interval of adjacent holes decreases away from the center.Type: GrantFiled: February 3, 2017Date of Patent: August 27, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Yasutada Nakagawa, Tomomichi Naka, Ikuo Uematsu
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Publication number: 20180238609Abstract: Insulation according to an embodiment of the present invention is provided with the following: a core material formed by a small-diameter fiber material having a micro-order to nano-order fiber diameter; and a reinforcing means for reinforcing the strength of the core material.Type: ApplicationFiled: March 8, 2016Publication date: August 23, 2018Applicant: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATIONInventors: KENYA UCHIDA, IKUO UEMATSU, NAOYA HAYAMIZU, YOKO TOKUNO, TOMOMICHI NAKA, MASAYUKI TANAKA, TAKAHIRO TERADA
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Publication number: 20180202074Abstract: An electrospinning apparatus according to an embodiment is configured to deposit a fiber on a collector or a member. The electrospinning apparatus includes a first nozzle head provided on one side of the collector or the member, and a second nozzle head provided on the side opposite to the first nozzle head with the collector or the member interposed. The first nozzle head and the second nozzle head are at a section where the collector or the member moves in a direction tilted with respect to a horizontal direction.Type: ApplicationFiled: March 13, 2018Publication date: July 19, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Kenya UCHIDA, Ikuo UEMATSU, Tomomichi NAKA, Yoko TOKUNO, Yuma KIKUCHI
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Publication number: 20170268131Abstract: According to one embodiment, a nozzle head module includes a nozzle head having a hole electing a source material liquid, the nozzle head being configured to have a first voltage and an electrode provided to be relatively movable with respect to the nozzle head, the electrode being configured to have a second voltage. The second voltage is of the same polarity as the first voltage.Type: ApplicationFiled: March 16, 2017Publication date: September 21, 2017Applicant: Kabushiki Kaisha ToshibaInventors: Yoshihide NAKAMURA, Tomomichi NAKA, Hiroaki KOBAYASHI, Hiroshi YAHATA
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Patent number: 9692052Abstract: According to one embodiment, an electrode material for a battery includes a tungsten oxide powder or a tungsten oxide composite powder provided with a coating unit containing at least one selected from a metal oxide, silicon oxide, a metal nitride, and silicon nitride.Type: GrantFiled: March 11, 2013Date of Patent: June 27, 2017Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Yoko Tokuno, Tomomichi Naka, Naoaki Sakurai, Akito Sasaki, Shuzi Hayase
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Publication number: 20170145593Abstract: According to one embodiment, a nanofiber manufacturing-apparatus nozzle head includes a plurality of holes. A solution is ejected from the holes. The holes are arranged from a center of the nozzle head toward an end portion of the nozzle head. An interval of adjacent holes decreases away from the center.Type: ApplicationFiled: February 3, 2017Publication date: May 25, 2017Applicant: Kabushiki Kaisha ToshibaInventors: Yasutada NAKAGAWA, Tomomichi Naka, Ikuo Uematsu
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Patent number: 9634310Abstract: According to one embodiment, there is provided a secondary battery. This secondary battery includes an electrode and an organic-fiber layer. The electrode includes a current collector including an edge part, an active material-containing layer including an end part supported on the edge part, and a current-collecting tab including a surface a part of which is adjacent to the edge part. The organic-fiber layer is bonded with the end part of the active material-containing layer with maximum thickness and with the part of the surface of the current-collecting tab.Type: GrantFiled: March 10, 2014Date of Patent: April 25, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yoko Tokuno, Naoya Hayamizu, Ikuo Uematsu, Tomomichi Naka
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Patent number: 9627150Abstract: The present invention provides an electrode material for batteries made from tungsten oxide powder, wherein the tungsten oxide powder has a first peak present within a wavenumber range of 268 to 274 cm?1, a second peak present within a wavenumber range of 630 to 720 cm?1, and a third peak present within a wavenumber range of 800 to 810 cm?1, when a Raman spectroscopic analysis method is performed on the electrode material.Type: GrantFiled: March 8, 2013Date of Patent: April 18, 2017Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Akito Sasaki, Miho Nakamura, Tomomichi Naka, Yoko Tokuno
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Patent number: 9303976Abstract: According to one embodiment, a substrate processing system includes a measuring unit, a data processing unit, and a processing unit. The measuring unit is configured to measure information relating to a thickness dimension of a substrate. The substrate includes a light emitting unit and a wavelength conversion unit. The wavelength conversion unit includes a phosphor. The data processing unit is configured to determine processing information relating to a thickness direction of the wavelength conversion unit based on the measured information relating to the thickness dimension of the substrate and based on information relating to a characteristic of light emitted from the light emitting unit. The processing unit is configured to perform processing of the wavelength conversion unit based on the determined processing information.Type: GrantFiled: April 26, 2012Date of Patent: April 5, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Masahiro Uekita, Hiroshi Koizumi, Tomomichi Naka, Naoaki Sakurai, Eijiro Koike
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Publication number: 20160068998Abstract: According to one embodiment, a nanofiber producing apparatus includes a portion to be deposited, an ejection unit, a power supply unit, an inspection unit and an adjusting unit. The portion to be deposited includes a first surface and a second surface. The second surface faces the first surface. The ejection unit ejects a raw material liquid toward the first surface. The power supply unit generates a potential difference between the ejection unit and the first surface. The inspection unit inspects a defect of the first surface. The adjusting unit is provided so as to face the second surface. The adjusting unit generates a potential in the second surface.Type: ApplicationFiled: July 16, 2015Publication date: March 10, 2016Applicant: Kabushiki Kaisha ToshibaInventor: Tomomichi NAKA