Patents by Inventor Takahiro HIGASHINO
Takahiro HIGASHINO 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: 20210013534Abstract: An electrolyte layer-anode composite member includes an anode including a first metal oxide having a perovskite crystal structure, and a solid electrolyte layer including a second metal oxide having a perovskite crystal structure, the anode including at least one of nickel and a nickel compound, the anode having a sheet-like shape, the solid electrolyte layer having a sheet-like shape, the solid electrolyte layer being stacked on the anode, the anode having a thickness Ta of 850 ?m or more. The thickness Ta of the anode and a thickness Te of the solid electrolyte layer may satisfy a relation of 0.003?Te/Ta?0.036. The thickness Ta of the anode and a diameter Da of the anode may satisfy a relation of 55?Ta/Da?300.Type: ApplicationFiled: February 14, 2019Publication date: January 14, 2021Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Chihiro HIRAIWA, Naho MIZUHARA, Mitsuyasu OGAWA, Hiromasa TAWARAYAMA, Takahiro HIGASHINO, Masatoshi MAJIMA
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Publication number: 20210005913Abstract: Provided is an electrolyte layer-anode composite member for a fuel cell, the electrolyte layer-anode composite member including an anode and a solid electrolyte layer having ion conductivity, the anode being an aggregate of granules including a composite metal, the composite metal including a nickel element and an iron element, the granules including a plurality of pores, the composite metal accounting for 80% by mass or more of the anode, the anode having a bulk density of 75% or less of a real density of the composite metal. Also provided is a cell structure including the electrolyte layer-anode composite member for a fuel cell described above, and a cathode arranged on a side of the solid electrolyte layer.Type: ApplicationFiled: February 15, 2019Publication date: January 7, 2021Applicant: Sumitomo Electric Industries, Ltd.Inventors: Chihiro HIRAIWA, Masatoshi MAJIMA, Takahiro HIGASHINO, Naho MIZUHARA, Hiromasa TAWARAYAMA
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Publication number: 20210005916Abstract: A proton conductor contains a metal oxide that has a perovskite structure and that is represented by formula (1): AxB1-yMyO3-?, where an element A is at least one element selected from the group consisting of Ba, Ca, and Sr, an element B is at least one element selected from the group consisting of Ce and Zr, an element M is at least one element selected from the group consisting of Y, Yb, Er, Ho, Tm, Gd, In, and Sc, ? indicates an oxygen deficiency amount, and 0.95?x?1 and 0<y?0.5 are satisfied.Type: ApplicationFiled: November 16, 2018Publication date: January 7, 2021Applicants: Kyoto University, SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takahiro HIGASHINO, Yohei NODA, Chihiro HIRAIWA, Naho MIZUHARA, Mitsuyasu OGAWA, Hiromasa TAWARAYAMA, Masatoshi MAJIMA, Tetsuya UDA, Donglin HAN, Takayuki ONISHI
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Publication number: 20200403252Abstract: A porous metal body including a skeleton having a three-dimensional mesh-like structure, the porous metal body having a plate-like overall shape. The skeleton has a hollow structure and includes a primary metal layer and at least one of a first microporous layer and a second microporous layer. The primary metal layer is composed of nickel or a nickel alloy. The first microporous layer contains nickel and chromium and is disposed on the outer peripheral surface of the primary metal layer. The second microporous layer contains nickel and chromium and is disposed on the inner peripheral surface of the primary metal layer, the inner peripheral surface facing the hollow space of the skeleton.Type: ApplicationFiled: August 31, 2020Publication date: December 24, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kazuki OKUNO, Takahiro HIGASHINO, Masatoshi MAJIMA, Tomoyuki AWAZU
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Publication number: 20200377973Abstract: A metal porous body having a three-dimensional network structure, includes: a framework forming the three-dimensional network structure; and a coating layer having fine pores and coating the framework, the three-dimensional network structure including a rib and a node connecting a plurality of ribs, the framework including an alkali-resistant first metal, the fine pores having an average fine pore diameter of 10 nm or more and 1 ?m or less, the coating layer including an alkali-resistant second metal and optionally including an alkali-soluble metal, the alkali-soluble metal being contained at a proportion of 0% by mass or more and 30% by mass or less with reference to a total mass of the framework and the coating layer.Type: ApplicationFiled: December 6, 2018Publication date: December 3, 2020Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITYInventors: Kazuki OKUNO, Takahiro HIGASHINO, Hiromasa TAWARAYAMA, Masatoshi MAJIMA, Haruki MASUMURA, Yoshiyuki KURODA, Shigenori MITSUSHIMA
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Patent number: 10847814Abstract: Provided is a solid oxide fuel cell including a flat-plate-shaped cell structure including a cathode, an anode, and an electrolyte layer containing a solid oxide, a frame-shaped sealing member disposed so as to surround a periphery of the cathode, the sealing member having a larger outside diameter than the cathode, a first pressing member and a second pressing member that hold the sealing member therebetween, and a flat-plate-shaped cathode current collector adjacent to the cathode, the flat-plate-shaped cathode current collector being formed of a porous metal body having a three-dimensional mesh-like skeleton, in which the cathode current collector has a peripheral portion that is not opposite the anode, the outer edge portion of a main surface of the sealing member adjacent to the anode faces the first pressing member, the inner edge portion of the main surface of the sealing member adjacent to the anode faces the peripheral portion of the electrolyte layer, the outer edge portion of a main surface of theType: GrantFiled: January 23, 2017Date of Patent: November 24, 2020Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Chihiro Hiraiwa, Masatoshi Majima, Takahiro Higashino, Hiromasa Tawarayama, Kazunari Miyamoto
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Patent number: 10847809Abstract: A solid-oxide-electrolysis-cell-type hydrogen production apparatus includes a cell structure including a first electrode, a second electrode, and an electrolyte layer, a gas diffusion layer disposed adjacent to the first electrode, and a gas channel plate disposed adjacent to the gas diffusion layer, in which the gas diffusion layer is formed of a porous metal body having a three-dimensional mesh-like skeleton, the gas channel plate includes a first region including a first channel, a second region including a second channel, and a third region including a third channel, the first channel includes a slit extending from the center of the gas channel plate toward its outer edge at the boundary surface between the first region and the second region, letting the total area of the first channel at the boundary surface be a first opening area S1, letting the total area of the second channel at the boundary surface between the second region and the third region be a second opening area S2, and letting the total areaType: GrantFiled: May 7, 2020Date of Patent: November 24, 2020Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Chihiro Hiraiwa, Takahiro Higashino, Hiromasa Tawarayama, Masatoshi Majima, Toshihiro Yoshida, Kazunari Miyamoto
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Patent number: 10811696Abstract: A porous metal body including a skeleton having a three-dimensional mesh-like structure, the porous metal body having a plate-like overall shape. The skeleton has a hollow structure and includes a primary metal layer and at least one of a first microporous layer and a second microporous layer. The primary metal layer is composed of nickel or a nickel alloy. The first microporous layer contains nickel and chromium and is disposed on the outer peripheral surface of the primary metal layer. The second microporous layer contains nickel and chromium and is disposed on the inner peripheral surface of the primary metal layer, the inner peripheral surface facing the hollow space of the skeleton.Type: GrantFiled: July 28, 2016Date of Patent: October 20, 2020Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kazuki Okuno, Takahiro Higashino, Masatoshi Majima, Tomoyuki Awazu
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Patent number: 10797323Abstract: A current collector included in a fuel cell, the fuel cell including a membrane electrode assembly including a solid polymer electrolyte layer and a pair of electrode layers formed to sandwich the solid polymer electrolyte layer, the current collector stacked on each electrode layer, and a gas flow path for supply of a gas to each electrode layer, the current collector including a metal porous body which is stacked on the electrode layer, has a flowing gas supplied to the electrode layer, and is rendered conducting to the electrode layer, and the metal porous body including an electrically conductive layer containing electrically conductive particles fixed to a corrosion-resistant and water-repellent resin at least on a side of the electrode layer.Type: GrantFiled: March 19, 2015Date of Patent: October 6, 2020Assignees: Sumitomo Electric Industries, Ltd., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Kazuki Okuno, Takahiro Higashino, Masatoshi Majima, Tsutomu Iwaki, Masahiro Yanagida, Tetsuo Sakai
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Publication number: 20200266451Abstract: A solid-oxide-electrolysis-cell-type hydrogen production apparatus includes a cell structure including a first electrode, a second electrode, and an electrolyte layer, a gas diffusion layer disposed adjacent to the first electrode, and a gas channel plate disposed adjacent to the gas diffusion layer, in which the gas diffusion layer is formed of a porous metal body having a three-dimensional mesh-like skeleton, the gas channel plate includes a first region including a first channel, a second region including a second channel, and a third region including a third channel, the first channel includes a slit extending from the center of the gas channel plate toward its outer edge at the boundary surface between the first region and the second region, letting the total area of the first channel at the boundary surface be a first opening area S1, letting the total area of the second channel at the boundary surface between the second region and the third region be a second opening area S2, and letting the total areaType: ApplicationFiled: May 7, 2020Publication date: August 20, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Chihiro HIRAIWA, Takahiro HIGASHINO, Hiromasa TAWARAYAMA, Masatoshi MAJIMA, Toshihiro YOSHIDA, Kazunari MIYAMOTO
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Publication number: 20200251750Abstract: A porous metal body has a three-dimensional mesh-like structure skeleton and containing at least nickel and tin. The nickel content is 50 mass % or more, and the tin content is 5 mass % or more and 25 mass % or less. The porous metal body has a thickness of 0.10 mm or more and 0.50 mm or less.Type: ApplicationFiled: March 23, 2020Publication date: August 6, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kazunari MIYAMOTO, Tomoyuki AWAZU, Masatoshi MAJIMA, Kazuki OKUNO, Takahiro HIGASHINO
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Patent number: 10734665Abstract: A method for producing a cell structure includes: a step of firing a laminated body of a layer containing an anode material and a layer containing a solid electrolyte material, to obtain a joined body of an anode and a solid electrolyte layer; a step of laminating a layer containing a cathode material on a surface of the solid electrolyte layer, and firing the obtained laminated body to obtain a cathode. The anode material contains a metal oxide Ma1 and a nickel compound. The metal oxide Ma1 is a metal oxide having a perovskite structure represented by A1x1B11-y1M1y1O3-? (wherein: A1 is at least one of Ba, Ca, and Sr; B1 is at least one of Ce and Zr; M1 is at least one of Y, Yb, Er, Ho, Tm, Gd, In, and Sc; 0.85?x1?0.99; 0<y1?0.5; and ? is an oxygen deficiency amount).Type: GrantFiled: August 5, 2016Date of Patent: August 4, 2020Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., KYOTO UNIVERSITYInventors: Takahiro Higashino, Kazunari Miyamoto, Yohei Noda, Chihiro Hiraiwa, Naho Mizuhara, Hiromasa Tawarayama, Hisao Takeuchi, Masatoshi Majima, Tetsuya Uda, Donglin Han
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Publication number: 20200212468Abstract: A proton-conductive solid electrolyte member has an electrolyte layer and an anode layer. The electrolyte layer contains a metal oxide having a perovskite crystal structure. The anode layer contains Fe2O3 and the metal oxide. The metal oxide is a metal oxide expressed by the following formula [1], or a mixture or a solid solution of a metal oxide expressed by the following formula [1]: AaBbMcO3-?, where A denotes one element selected from the group consisting of Ba and Ca; B denotes one element selected from the group consisting of Ce and Zr; M denotes one element selected from the group consisting of Y, Yb, Er, Ho, Tm, Gd, In, and Sc; a is a number satisfying 0.85?a?1; b is a number satisfying 0.50?b?1; c is a number satisfying c=1?b; and ? is an oxygen deficiency amount.Type: ApplicationFiled: May 17, 2018Publication date: July 2, 2020Applicant: Sumitomo Electric Industries, Ltd.Inventors: Chihiro HIRAIWA, Ryoko KANDA, Takahiro HIGASHINO, Masatoshi MAJIMA
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Patent number: 10693143Abstract: A fuel cell includes a cell structure including a first electrode, a second electrode, and an electrolyte layer, a gas diffusion layer disposed adjacent to the first electrode, and a gas channel plate disposed adjacent to the gas diffusion layer, in which the gas diffusion layer is formed of a porous metal body having a three-dimensional mesh-like skeleton, the gas channel plate includes a first region including a first channel, a second region including a second channel, and a third region including a third channel, the first channel includes a slit extending from the center of the gas channel plate toward its outer edge at the boundary surface between the first region and the second region, letting the total area of the first channel at the boundary surface be a first opening area S1, letting the total area of the second channel at the boundary surface between the second region and the third region be a second opening area S2, and letting the total area of the third channel at the boundary surface between tType: GrantFiled: January 23, 2017Date of Patent: June 23, 2020Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Chihiro Hiraiwa, Takahiro Higashino, Hiromasa Tawarayama, Masatoshi Majima, Toshihiro Yoshida, Kazunari Miyamoto
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Publication number: 20200190680Abstract: A composite metal porous body according to an aspect of the present invention has a framework of a three-dimensional network structure. The framework includes a porous base material and a metal film coated on the surface of the porous base material. The metal film contains titanium metal or titanium alloy as the main component.Type: ApplicationFiled: March 13, 2018Publication date: June 18, 2020Applicant: Sumitomo Electric Industries, Ltd.Inventors: Koma NUMATA, Masatoshi MAJIMA, Tomoyuki AWAZU, Mitsuyasu OGAWA, Kazuki OKUNO, Takahiro HIGASHINO
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Publication number: 20200099063Abstract: A porous metal body including a skeleton having a three-dimensional mesh-like structure, the porous metal body having a plate-like overall shape. The skeleton has a hollow structure and includes a primary metal layer and at least one of a first microporous layer and a second microporous layer. The primary metal layer is composed of nickel or a nickel alloy. The first microporous layer contains nickel and chromium and is disposed on the outer peripheral surface of the primary metal layer. The second microporous layer contains nickel and chromium and is disposed on the inner peripheral surface of the primary metal layer, the inner peripheral surface facing the hollow space of the skeleton.Type: ApplicationFiled: July 28, 2016Publication date: March 26, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kazuki OKUNO, Takahiro HIGASHINO, Masatoshi MAJIMA, Tomoyuki AWAZU
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Patent number: 10573904Abstract: A fuel cell includes a MEA that includes a cathode, an anode, and a solid electrolyte layer disposed between the cathode and the anode, the solid electrolyte layer containing an ion-conducting solid oxide; at least one first porous metal body adjacent to at least one of the cathode and the anode and having a three-dimensional mesh-like skeleton; a second porous metal body stacked to be adjacent to the first porous metal body and having a three-dimensional mesh-like skeleton; and an interconnector adjacent to the second porous metal body. The first porous metal body has a pore size smaller than a pore size of the second porous metal body.Type: GrantFiled: July 8, 2016Date of Patent: February 25, 2020Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Chihiro Hiraiwa, Masatoshi Majima, Hiromasa Tawarayama, Naho Mizuhara, Takahiro Higashino, Yohei Noda, Kazunari Miyamoto, Toshihiro Yoshida
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Publication number: 20200040471Abstract: The present invention provides an oxide-dispersed metal porous body including a porous metal framework, and oxide particles carried in the metal framework.Type: ApplicationFiled: April 23, 2018Publication date: February 6, 2020Applicants: Sumitomo Electric Industries, Ltd., National University Corporation YOKOHAMA National UniversityInventors: Kazuki OKUNO, Masatoshi MAJIMA, Takahiro HIGASHINO, Hiromasa TAWARAYAMA, Shigenori MITSUSHIMA
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Patent number: 10553880Abstract: A fuel cell includes a MEA that includes a cathode, an anode, and a solid electrolyte layer disposed between the cathode and the anode, the solid electrolyte layer containing an ion-conducting solid oxide; at least one first porous metal body arranged to oppose at least one of the cathode and the anode; and an interconnector arranged to oppose the first porous metal body and having a gas supply port and a gas discharge port formed therein. The first porous metal body includes a porous metal body S that opposes the gas supply port and has a three-dimensional mesh-like skeleton, and a porous metal body H that has a three-dimensional mesh-like skeleton and is other than the porous metal body S. A porosity Ps of the porous metal body S and a porosity Ph of the porous metal body H satisfy a relationship: Ps<Ph.Type: GrantFiled: July 8, 2016Date of Patent: February 4, 2020Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Chihiro Hiraiwa, Masatoshi Majima, Hiromasa Tawarayama, Naho Mizuhara, Takahiro Higashino, Yohei Noda, Kazunari Miyamoto, Toshihiro Yoshida
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Publication number: 20200036011Abstract: The metal porous body according to one aspect of the present invention has a framework of a three-dimensional network structure. The framework is hollow inside and is formed of a metal film, and the metal film contains titanium metal or titanium alloy as the main component.Type: ApplicationFiled: March 13, 2018Publication date: January 30, 2020Applicant: Sumitomo Electric Industries, Ltd.Inventors: Koma NUMATA, Masatoshi MAJIMA, Tomoyuki AWAZU, Mitsuyasu OGAWA, Takahiro HIGASHINO, Hiromasa TAWARAYAMA