Patents by Inventor Masahiro Asayama
Masahiro Asayama 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: 20250046847Abstract: A solid oxide electrochemical cell stack includes: a first planar electrochemical cell; a second planar electrochemical cell stacked with the first planar electrochemical cell; a separator electrically connected to a first hydrogen electrode and a second oxygen electrode; a first conductor connecting the first hydrogen electrode and the separator; and a second conductor connecting the second oxygen electrode and the separator. The second conductor includes a porous conductor through which at least one supplied gas is supplied and diffused to second the oxygen electrode, and a structure-supporting conductor to prevent mechanical displacements of the cells.Type: ApplicationFiled: July 15, 2024Publication date: February 6, 2025Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Kentaro MATSUNAGA, Norikazu OSADA, Masato YOSHINO, Takahiro ONO, Hisao WATANABE, Yusuke SUZUKI, Kazuhiro SAITO, Masahiro ASAYAMA
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Publication number: 20240097152Abstract: In an electrochemical device of an embodiment, a cell stack has a spacer disposed to be arranged next to an insulating sealing member in a direction orthogonal to a stack direction. A plurality of the spacers are arranged in the stack direction between a pair of end plates, and the spacer is interposed between a pair of separators adjacently arranged in the stack direction. The spacer is formed of a material whose thickness reduction ratio when an operation of the electrochemical device is executed is smaller than that of the insulating sealing member. Before the execution of the operation of the electrochemical device, the thickness of the spacer is thinner than the thickness of the insulating sealing member. Further, the thickness of the spacer keeps a state of being equal to or less than the thickness of the insulating sealing member when the operation of the electrochemical device is executed.Type: ApplicationFiled: June 9, 2023Publication date: March 21, 2024Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Riko INUZUKA, Norikazu OSADA, Kentaro MATSUNAGA, Masahiro ASAYAMA, Shohei KOBAYASHI, Yusuke SUZUKI, Tsuneji KAMEDA
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INTERCONNECTOR FOR SOLID OXIDE ELECTROCHEMICAL CELL STACK AND SOLID OXIDE ELECTROCHEMICAL CELL STACK
Publication number: 20240068114Abstract: An interconnector for a solid oxide electrochemical cell stack of at least one embodiment includes a metal base that contains an iron-base alloy containing chromium, a protective film provided on a surface of the metal base, and an interlayer provided between the metal base and the protective film arranged to relieve stress.Type: ApplicationFiled: July 12, 2023Publication date: February 29, 2024Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Shohei KOBAYASHI, Tsuneji KAMEDA, Masahiro ASAYAMA, Norikazu OSADA, Riko INUZUKA -
Patent number: 11855307Abstract: There is provided a metal member capable of effectively preventing a coating layer from peeling off from a base. The metal member in an embodiment is a metal member that is used in a solid-oxide type electrochemical stack, and includes: a base formed of ferritic stainless steel; and a metal film provided on the base, in which the metal film includes a first metal layer containing Co and a second metal layer made of Mn, and is a stack in which the first metal layer and the second metal layer are sequentially stacked from the side of the base.Type: GrantFiled: January 9, 2023Date of Patent: December 26, 2023Assignee: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Riko Inuzuka, Norikazu Osada, Masato Yoshino, Masahiro Asayama, Shohei Kobayashi, Tsuneji Kameda
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Publication number: 20230327141Abstract: To provide an electrochemical device capable of sufficiently ensuring sealing performance, and the like. The electrochemical device of this embodiment has an electrochemical cell with an electrolyte membrane interposed between a hydrogen electrode and an oxygen electrode; a plurality of separators formed of a metal material; and gas-sealing materials that seal at least one of between the electrochemical cell and the separator and between the plurality of separators. In the electrochemical device, diffusion-preventing coatings, which prevent diffusion of metal elements in the metal material composing the separators, cover surfaces of the separators. The diffusion-preventing coating is formed of a material that reacts with a material composing the gas-sealing material. There are portions where the separators are in direct contact with the gas-sealing materials.Type: ApplicationFiled: June 14, 2023Publication date: October 12, 2023Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Riko INUZUKA, Tsuneji KAMEDA, Masahiro ASAYAMA, Masato YOSHINO, Norikazu OSADA, Shohei KOBAYASHI
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INTERCONNECTOR FOR SOLID-OXIDE ELECTROCHEMICAL CELL STACK AND SOLID-OXIDE ELECTROCHEMICAL CELL STACK
Publication number: 20230120134Abstract: An interconnector for a solid-oxide electrochemical cell stack of the embodiment includes: a metal base containing an iron-based alloy containing chromium; and a protective film provided on a surface of the metal base. The protective film includes a protective film body containing at least one selected from a spinel oxide and a perovskite oxide, and dispersed phases scattered in the protective film body and containing an oxide of at least one element selected from the group consisting of rare earth elements and zirconium.Type: ApplicationFiled: September 22, 2022Publication date: April 20, 2023Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Shohei KOBAYASHI, Tsuneji KAMEDA, Masahiro ASAYAMA, Masato YOSHINO, Norikazu OSADA, Riko INUZUKA -
Publication number: 20230075910Abstract: [Problem] Provided are a protective-layer-coated-interconnector, a cell stack, and a hydrogen energy system. A component (particularly Cr) of the interconnector is prevented from diffusing even if the interconnector is exposed to high temperature for a long time. The interconnector has sufficient diffusion barrier performance and protective performance even with a protective layer thinner than conventionally, is inhibited from being degraded through use, and has excellent electrical conductivity. [Solution] A protective-layer-coated-interconnector including an interconnector material and a protective layer on the surface of the interconnector material, wherein the protective layer contains a metal layer constituted by a Group 11 element. A cell stack and a hydrogen energy system that each include this interconnector.Type: ApplicationFiled: August 8, 2022Publication date: March 9, 2023Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Shohei KOBAYASHI, Kiyoshi IMAI, Tsuneji KAMEDA, Masahiro ASAYAMA, Masato YOSHINO, Norikazu OSADA, Riko INUZUKA
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Publication number: 20230047305Abstract: A metal component for electrochemical stack in an embodiment includes: a metal base material having a first surface exposed to an atmosphere containing hydrogen and a second surface exposed to an atmosphere containing oxygen; and a hydrogen permeation inhibition and protection coating provided on the first surface of the metal base material. The metal component for electrochemical stack in the embodiment can suppress metallic corrosion also in the case where one side is in contact with air and the other side is in contact with an atmosphere containing hydrogen.Type: ApplicationFiled: July 15, 2022Publication date: February 16, 2023Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Riko INUZUKA, Tsuneji KAMEDA, Masahiro ASAYAMA, Norikazu OSADA, Shohei KOBAYASHI
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Patent number: 11575136Abstract: There is provided a metal member capable of effectively preventing a coating layer from peeling off from a base. The metal member in an embodiment is a metal member that is used in a solid-oxide type electrochemical stack, and includes: a base formed of ferritic stainless steel; and a metal film provided on the base, in which the metal film includes a first metal layer containing Co and a second metal layer made of Mn, and is a stack in which the first metal layer and the second metal layer are sequentially stacked from the side of the base.Type: GrantFiled: February 23, 2021Date of Patent: February 7, 2023Assignee: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Riko Inuzuka, Norikazu Osada, Masato Yoshino, Masahiro Asayama, Shohei Kobayashi, Tsuneji Kameda
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Patent number: 11484859Abstract: An airflow generation device having a first dielectric substrate made from a rubber elastic material, a first electrode on or near by a first surface of the first dielectric substrate, a second electrode on a second surface, and a second dielectric substrate made from a rubber elastic material covering the second electrode. It makes the airflows generated by plasma caused from partial gas near by the first surface through applied voltage into the first electrode and the second electrode, and bonding portions between the first electrode and the second electrode and the first dielectric substrate, bonding portions between the second electrode and the second dielectric substrate, and bonding portions between the first dielectric substrate and the second dielectric substrate are bonded by chemical bonds with chemically crosslinking.Type: GrantFiled: May 24, 2018Date of Patent: November 1, 2022Assignees: ASAHI RUBBER INC., TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Nobuyoshi Watanabe, Hideaki Sato, Yutaka Watanabe, Kenichi Yamazaki, Masahiro Asayama, Motofumi Tanaka, Hiroyuki Yasui, Toshiki Osako
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Publication number: 20220246970Abstract: Provided is a protective-layer-coated-interconnector, a cell stack, and a fuel cell. A component (particularly Cr) of the interconnector is prevented from diffusing even if the interconnector is exposed to high temperature for a long time. The interconnector has sufficient diffusion barrier-performance and protective performance. [Solution] A protective-layer-coated-interconnector, a cell stack including the interconnector, and a fuel cell including the interconnector, wherein the interconnector includes an interconnector material and a protective layer on the surface of the interconnector material, wherein the interconnector material is composed of a Fe—Cr alloy containing a rare earth element or a Zr element in a total amount of 1.0 weight % or less, and wherein the protective layer is composed of a Co oxide or an oxide containing: at least one element selected from the group consisting of Al, Ti, Cr, Fe, Ni, Cu, and Zn; and a Co element.Type: ApplicationFiled: February 2, 2022Publication date: August 4, 2022Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Shohei KOBAYASHI, Tsuneji KAMEDA, Masahiro ASAYAMA, Masato YOSHINO, Norikazu OSADA, Riko INUZUKA
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Publication number: 20210296659Abstract: There is provided a metal member capable of effectively preventing a coating layer from peeling off from a base. The metal member in an embodiment is a metal member that is used in a solid-oxide type electrochemical stack, and includes: a base formed of ferritic stainless steel; and a metal film provided on the base, in which the metal film includes a first metal layer containing Co and a second metal layer made of Mn, and is a stack in which the first metal layer and the second metal layer are sequentially stacked from the side of the base.Type: ApplicationFiled: February 23, 2021Publication date: September 23, 2021Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Riko INUZUKA, Norikazu OSADA, Masato YOSHINO, Masahiro ASAYAMA, Shohei KOBAYASHI, Tsuneji KAMEDA
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Publication number: 20210138425Abstract: An airflow generation device having a first dielectric substrate made from a rubber elastic material, a first electrode on or near by a first surface of the first dielectric substrate, a second electrode on a second surface, and a second dielectric substrate made from a rubber elastic material covering the second electrode. It makes the airflows generated by plasma caused from partial gas near by the first surface through applied voltage into the first electrode and the second electrode, and bonding portions between the first electrode and the second electrode and the first dielectric substrate, bonding portions between the second electrode and the second dielectric substrate, and bonding portions between the first dielectric substrate and the second dielectric substrate are bonded by chemical bonds with chemically crosslinking.Type: ApplicationFiled: May 24, 2018Publication date: May 13, 2021Applicants: ASAHI RUBBER INC., TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Nobuyoshi WATANABE, Hideaki SATO, Yutaka WATANABE, Kenichi YAMAZAKI, Masahiro ASAYAMA, Motofumi TANAKA, Hiroyuki YASUI, Toshiki OSAKO
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Patent number: 9976538Abstract: An airflow generation device disposed on a moving body such as a windmill blade in which a conduction state of an electrode can be sufficiently secured, and the like are provided. An airflow generation device of an embodiment includes a base, a first electrode, and a second electrode, and generates an airflow when a voltage is applied between the first electrode and the second electrode. The base is formed of a dielectric having a flexibility. The first electrode is provided on a front surface side of the base. The second electrode is provided inside the base. Here, the first electrode includes a metal electrode part and an elastomeric electrode part. The metal electrode part is formed of a metal material. The elastomeric electrode part is formed by using an elastomeric material, and has a conductivity. Further, the elastomeric electrode part includes a portion covering the metal electrode part.Type: GrantFiled: October 13, 2015Date of Patent: May 22, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masahiro Asayama, Kenichi Yamazaki, Motofumi Tanaka, Toshiki Osako
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Patent number: 9709032Abstract: An airflow generation device of an embodiment has a main body and a voltage application unit. The main body has a base formed of an insulating material and provided with a first electrode and a second electrode. The voltage application unit generates an airflow by applying voltage between the first electrode and the second electrode. Here, the main body is formed to include a portion which gradually decreases in thickness from a center portion to an end portion.Type: GrantFiled: March 14, 2014Date of Patent: July 18, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hisashi Matsuda, Kenichi Yamazaki, Motofumi Tanaka, Naohiko Shimura, Masahiro Asayama, Toshiki Osako
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Publication number: 20160230783Abstract: An airflow generation device of an embodiment includes a dielectric base, a first electrode, a second electrode, a third electrode, and a power supply. The dielectric base has a main surface. The first electrode is disposed on the main surface. The second electrode is disposed in the dielectric base with an interval from the first electrode in a first direction along the main surface. At least a part of the third electrode is disposed at a position in the dielectric base, between the first electrode and the second electrode in the first direction, and deeper than the second electrode. The power supply applies voltages for causing discharge to the first, second, and third electrodes.Type: ApplicationFiled: December 28, 2015Publication date: August 11, 2016Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yuta ONISHI, Motofumi TANAKA, Masahiro ASAYAMA, Naohiko SHIMURA, Hiroyuki YASUI, Kenichi YAMAZAKI, Toshiki OSAKO
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Publication number: 20160146188Abstract: A wind farm of an embodiment includes a wind turbine and an airflow generation device, the wind turbine being installed in plurality in a predetermined installation region. The wind turbines each have a blade attached to a rotor. The airflow generation device includes a first electrode and a second electrode which are provided on a substrate formed of an insulating material. Here, the plural wind turbines include: a first wind turbine located on an upstream side and a second wind turbine located on a more downstream side than the first wind turbine, in a wind direction with a higher yearly frequency than a predetermined value, out of wind directions of wind blowing in the installation region. The airflow generation device is installed on the blade provided in the first wind turbine out of the plural wind turbines.Type: ApplicationFiled: November 17, 2015Publication date: May 26, 2016Applicant: Kabushiki Kaisha ToshibaInventors: Hisashi MATSUDA, Motofumi Tanaka, Toshiki Osako, Kenichi Yamazaki, Masahiro Asayama, Naohiko Shimura, Asako Inomata
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Publication number: 20160115940Abstract: An airflow generation device disposed on a moving body such as a windmill blade in which a conduction state of an electrode can be sufficiently secured, and the like are provided. An airflow generation device of an embodiment includes a base, a first electrode, and a second electrode, and generates an airflow when a voltage is applied between the first electrode and the second electrode. The base is formed of a dielectric having a flexibility. The first electrode is provided on a front surface side of the base. The second electrode is provided inside the base. Here, the first electrode includes a metal electrode part and an elastomeric electrode part. The metal electrode part is formed of a metal material. The elastomeric electrode part is formed by using an elastomeric material, and has a conductivity. Further, the elastomeric electrode part includes a portion covering the metal electrode part.Type: ApplicationFiled: October 13, 2015Publication date: April 28, 2016Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masahiro ASAYAMA, Kenichi YAMAZAKI, Motofumi TANAKA, Toshiki OSAKO
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Patent number: 9297260Abstract: An airflow control device 10 in an embodiment includes: a vortex shedding structure portion 20 discharging an airflow flowing on a surface in a flow direction as a vortex flow; and a first electrode 40 and a second electrode 41 disposed on a downstream side of the vortex shedding structure portion 20 via a dielectric. By applying a voltage between the first electrode 40 and the second electrode 41, flow of the airflow on the downstream side of the vortex shedding structure portion 20 is controlled.Type: GrantFiled: March 13, 2012Date of Patent: March 29, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Motofumi Tanaka, Hisashi Matsuda, Hiroyuki Yasui, Shohei Goshima, Naohiko Shimura, Kunihiko Wada, Tamon Ozaki, Toshiki Osako, Masahiro Asayama, Yutaka Uchida
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Publication number: 20150275852Abstract: There is provided an attaching jig for an airflow generation device, capable of easily attaching the airflow generation device and efficiently performing an attachment work. An attaching jig in an embodiment is used when attaching an airflow generation device to an attachment object, the airflow generation device generating an airflow by voltage applied between a pair of electrodes provided in a base formed of a dielectric material. Here, as the attaching jig, a supporting jig that supports the airflow generation device is provided. The supporting jig includes: a plurality of support plates that support the airflow generation device on support surfaces thereof; and a coupling part that couples the plurality of support plates. The plurality of support plates are coupled at the coupling part so as to being foldable by rotationally moving around the coupling part as a rotation shaft.Type: ApplicationFiled: March 19, 2015Publication date: October 1, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hisashi Matsuda, Kenichi Yamazaki, Motofumi Tanaka, Naohiko Shimura, Masahiro Asayama, Toshiki Osako