Patents by Inventor Tsuneji Kameda

Tsuneji Kameda 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).

  • Publication number: 20240068114
    Abstract: 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: Application
    Filed: July 12, 2023
    Publication date: February 29, 2024
    Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Shohei KOBAYASHI, Tsuneji KAMEDA, Masahiro ASAYAMA, Norikazu OSADA, Riko INUZUKA
  • Patent number: 11855307
    Abstract: 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: Grant
    Filed: January 9, 2023
    Date of Patent: December 26, 2023
    Assignee: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Riko Inuzuka, Norikazu Osada, Masato Yoshino, Masahiro Asayama, Shohei Kobayashi, Tsuneji Kameda
  • Publication number: 20230327141
    Abstract: 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: Application
    Filed: June 14, 2023
    Publication date: October 12, 2023
    Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Riko INUZUKA, Tsuneji KAMEDA, Masahiro ASAYAMA, Masato YOSHINO, Norikazu OSADA, Shohei KOBAYASHI
  • Publication number: 20230282840
    Abstract: A solid oxide electrochemical cell includes an oxygen electrode containing a strontium-containing perovskite-type composite oxide represented by Ln1-xSrxCo1-y-zFeyBzO3-? (Ln is a trivalent lanthanide element, B is a tetravalent element, 0<x<1, 0?y<1, 0<z<1, and 0<z+y<1, and ? is a value that is determined to satisfy charge neutrality conditions), a solid electrolyte containing zirconium oxide, a hydrogen electrode, and an interlayer containing a rare-earth-doped cerium oxide that is provided between the solid electrolyte and the oxygen electrode.
    Type: Application
    Filed: February 23, 2023
    Publication date: September 7, 2023
    Applicants: Japan Fine Ceramics Center, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Koichi Kawahara, Masaya Suzuki, Norikazu Osada, Riko Inuzuka, Tsuneji Kameda, Hiroaki Kawamori
  • Patent number: 11682771
    Abstract: An electrochemical cell according to an embodiment includes a hydrogen electrode, an electrolyte laminated on the hydrogen electrode, a barrier-layer laminated on the electrolyte, and an oxygen electrode laminated on the barrier-layer. The barrier-layer has a porous structure having a thickness of greater than 20 ?m and a porosity of greater than 10%.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: June 20, 2023
    Assignee: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Norikazu Osada, Tsuneji Kameda
  • Publication number: 20230120134
    Abstract: 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: Application
    Filed: September 22, 2022
    Publication date: April 20, 2023
    Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Shohei KOBAYASHI, Tsuneji KAMEDA, Masahiro ASAYAMA, Masato YOSHINO, Norikazu OSADA, Riko INUZUKA
  • Publication number: 20230075910
    Abstract: [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: Application
    Filed: August 8, 2022
    Publication date: March 9, 2023
    Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Shohei KOBAYASHI, Kiyoshi IMAI, Tsuneji KAMEDA, Masahiro ASAYAMA, Masato YOSHINO, Norikazu OSADA, Riko INUZUKA
  • Publication number: 20230047305
    Abstract: 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: Application
    Filed: July 15, 2022
    Publication date: February 16, 2023
    Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Riko INUZUKA, Tsuneji KAMEDA, Masahiro ASAYAMA, Norikazu OSADA, Shohei KOBAYASHI
  • Patent number: 11575136
    Abstract: 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: Grant
    Filed: February 23, 2021
    Date of Patent: February 7, 2023
    Assignee: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Riko Inuzuka, Norikazu Osada, Masato Yoshino, Masahiro Asayama, Shohei Kobayashi, Tsuneji Kameda
  • Publication number: 20220393216
    Abstract: A hydrogen electrode includes: a first layer; and a second layer located on the side of the electrolyte membrane relative to the first layer. The first layer is formed of a sintered body of a first metal and a first oxide. The second layer is formed of a sintered body of a second metal and a second oxide different from the first oxide. The first metal and the second metal each are a single metal of at least one element selected from the group consisting of Fe, Co, Ni, and Cu or an alloy of the element. The first oxide is zirconia stabilized with an oxide of at least one element selected from the group consisting of Y, Sc, Ca, and Mg. The second oxide is ceria doped with an oxide of at least one element selected from the group consisting of Sm, Gd, and Y.
    Type: Application
    Filed: June 6, 2022
    Publication date: December 8, 2022
    Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Norikazu OSADA, Tsuneji KAMEDA
  • Publication number: 20220246970
    Abstract: 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: Application
    Filed: February 2, 2022
    Publication date: August 4, 2022
    Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Shohei KOBAYASHI, Tsuneji KAMEDA, Masahiro ASAYAMA, Masato YOSHINO, Norikazu OSADA, Riko INUZUKA
  • Publication number: 20220006102
    Abstract: An electrochemical cell according to an embodiment includes a hydrogen electrode, an electrolyte laminated on the hydrogen electrode, a barrier-layer laminated on the electrolyte, and an oxygen electrode laminated on the barrier-layer. The barrier-layer has a porous structure having a thickness of greater than 20 ?m and a porosity of greater than 10%.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 6, 2022
    Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Norikazu OSADA, Tsuneji KAMEDA
  • Publication number: 20210296659
    Abstract: 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: Application
    Filed: February 23, 2021
    Publication date: September 23, 2021
    Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Riko INUZUKA, Norikazu OSADA, Masato YOSHINO, Masahiro ASAYAMA, Shohei KOBAYASHI, Tsuneji KAMEDA
  • Publication number: 20210296677
    Abstract: An electrochemical cell includes an electrolyte arranged between a hydrogen electrode and an oxygen electrode. The electrolyte contains a ceria-based material having a fluorite crystal structure and a stabilized zirconia-based material. The electrolyte may include a first electrolyte located on a side close to the hydrogen electrode and containing the ceria-based material. The electrolyte may further include a second electrolyte located on a side close to the oxygen electrode and containing the ceria-based material. The electrolyte may further include a third electrolyte located between the first electrolyte and the second electrolyte and containing the stabilized zirconia-based material.
    Type: Application
    Filed: March 9, 2021
    Publication date: September 23, 2021
    Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Norikazu OSADA, Tsuneji KAMEDA
  • Patent number: 10081872
    Abstract: A hydrogen production system that achieves a highly-efficient hydrogen production operation even when a time-varying electric power source is used is provided. A hydrogen production system includes a capacitor inputting electric power energy from a renewable power supply, and storing electric power, a pulse voltage generation unit generating a pulse voltage having a set amplitude and a set cyclic period by using the electric power stored in the capacitor, and an electrolytic cell applying the generated pulse voltage, and generating hydrogen by high temperature steam electrolysis by using steam supplied into the electrolytic cell.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: September 25, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masafumi Komai, Masahiko Yamada, Tsuneji Kameda, Yuko Kawajiri, Seiji Fujiwara, Hisao Watanabe, Hiroyuki Yamauchi, Yasuo Takagi
  • Patent number: 9957626
    Abstract: A hydrogen production system that achieves highly-efficient hydrogen production even when hydrogen is produced by using the plurality of cell stacks is provided. A hydrogen production system includes a plurality of cell stacks provided within a reaction containment, the cell stacks generating hydrogen by high temperature steam electrolysis by supplying steam to the plurality of cell stacks, a first flow path guiding the steam to each of the cell stacks, a second flow path causing a carrier gas containing air as a main component to flow into the reaction containment, and a flow regulation device provided at an inlet of the steam in each of the cell stacks, the flow regulation device regulating a flow rate of the steam caused to flow into each of the cell stacks to be uniform.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: May 1, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yuko Kawajiri, Hisao Watanabe, Ryoji Yoshimura, Seiji Fujiwara, Hiroyuki Yamauchi, Masafumi Komai, Masahiko Yamada, Tsuneji Kameda, Masato Yoshino, Takatoshi Asada, Shigeo Kasai
  • Patent number: 9362576
    Abstract: In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: June 7, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shoko Suyama, Yoshiyasu Ito, Shigeo Kasai, Yasuo Takagi, Tsuneji Kameda, Kentaro Matsunaga, Masato Yoshino, Daisuke Horikawa, Kazuya Yamada
  • Patent number: 9306221
    Abstract: A fuel electrode for a solid oxide electrochemical cell includes: an electrode layer constituted of a mixed phase including an oxide having mixed conductivity and another oxide selected from the group including an aluminum-based oxide and a magnesium-based composite oxide, said another oxide having, supported on a surface part thereof, particles of at least one member selected from nickel, cobalt, and nickel-cobalt alloys.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 5, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takayuki Fukasawa, Keizo Shimamura, Yoshio Hanakata, Masato Yoshino, Kentaro Matsunaga, Tsuneji Kameda, Yoshiyasu Itoh
  • Publication number: 20160060776
    Abstract: A hydrogen production system that achieves highly-efficient hydrogen production even when hydrogen is produced by using the plurality of cell stacks is provided. A hydrogen production system includes a plurality of cell stacks provided within a reaction containment, the cell stacks generating hydrogen by high temperature steam electrolysis by supplying steam to the plurality of cell stacks, a first flow path guiding the steam to each of the cell stacks, a second flow path causing a carrier gas containing air as a main component to flow into the reaction containment, and a flow regulation device provided at an inlet of the steam in each of the cell stacks, the flow regulation device regulating a flow rate of the steam caused to flow into each of the cell stacks to be uniform.
    Type: Application
    Filed: August 27, 2015
    Publication date: March 3, 2016
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yuko KAWAJIRI, Hisao WATANABE, Ryoji YOSHIMURA, Seiji FUJIWARA, Hiroyuki YAMAUCHI, Masafumi KOMAI, Masahiko YAMADA, Tsuneji KAMEDA, Masato YOSHINO, Takatoshi ASADA, Shigeo KASAI
  • Publication number: 20160040310
    Abstract: A hydrogen production system that achieves a highly-efficient hydrogen production operation even when a time-varying electric power source is used is provided. A hydrogen production system includes a capacitor inputting electric power energy from a renewable power supply, and storing electric power, a pulse voltage generation unit generating a pulse voltage having a set amplitude and a set cyclic period by using the electric power stored in the capacitor, and an electrolytic cell applying the generated pulse voltage, and generating hydrogen by high temperature steam electrolysis by using steam supplied into the electrolytic cell.
    Type: Application
    Filed: August 3, 2015
    Publication date: February 11, 2016
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Masafumi KOMAI, Masahiko YAMADA, Tsuneji KAMEDA, Yuko KAWAJIRI, Seiji FUJIWARA, Hisao WATANABE, Hiroyuki YAMAUCHI, Yasuo TAKAGI