Patents by Inventor Masatoshi Majima
Masatoshi Majima 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: 20240150910Abstract: Provided is a surface-coated metal porous body having a three-dimensional network structure, the surface-coated metal porous body including: a framework forming the three-dimensional network structure; and a coating film provided on a surface of the framework, wherein the framework has a body including a metal element as a constituent element, the coating film includes a scale-like carbon material and a fine-grained conductive material, a distance D between two points that are farthest from each other on an outer perimeter of a main surface of the scale-like carbon material is 5% or more and 120% or less relative to a thickness of the framework, and the scale-like carbon material is deposited on the surface of the framework.Type: ApplicationFiled: June 25, 2020Publication date: May 9, 2024Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC TOYAMA CO., LTD.Inventors: Kazuki OKUNO, Masatoshi MAJIMA, Hitoshi TSUCHIDA
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Patent number: 11938471Abstract: A metal porous body has a skeleton of a three-dimensional network structure, an outer layer portion of the skeleton having a second pore smaller in size than a first pore formed by the skeleton, wherein the outer layer portion is a metal layer, and a water vapor reforming catalyst is supported in the outer layer portion.Type: GrantFiled: June 21, 2019Date of Patent: March 26, 2024Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Chihiro Hiraiwa, Naho Mizuhara, Mitsuyasu Ogawa, Takahiro Higashino, Hiromasa Tawarayama, Masatoshi Majima, Yoshitaka Ogasawara
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Patent number: 11888185Abstract: A fuel cell includes a cell structure, an oxidizing agent flow path, a fuel flow path, and an anode-side current collector. The cell structure includes a cathode, an anode, and a solid electrolyte layer disposed between the cathode and the anode. The oxidizing agent flow path is formed adjacent to the cathode and away from the solid electrolyte layer. The oxidizing agent flow path is a flow path for supplying a gas that contains an oxidizing agent to the cathode. The fuel flow path is formed adjacent to the anode and away from the solid electrolyte layer. The fuel flow path is a flow path for supplying a fuel gas that contains water vapor and a hydrocarbon to the anode. The anode-side current collector is disposed adjacent to the anode and away from the solid electrolyte layer. The anode-side current collector is in contact with the anode.Type: GrantFiled: April 25, 2019Date of Patent: January 30, 2024Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Chihiro Hiraiwa, Takahiro Higashino, Masatoshi Majima, Hiromasa Tawarayama, Mitsuyasu Ogawa
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Patent number: 11883801Abstract: A steam reforming catalyst that promotes production of hydrogen from a gas containing a hydrocarbon in the presence of steam includes a carrier and two or more catalyst metals supported on the carrier and including a first metal and a second metal. The first metal includes Ni, the second metal includes at least one of Co and Ru, and the carrier is represented by LaNbO4 or La1-xSrxNbO4 where x is in a range of 0<x?0.12.Type: GrantFiled: May 22, 2019Date of Patent: January 30, 2024Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Chihiro Hiraiwa, Masatoshi Majima, Takahiro Higashino, Naho Mizuhara, Hiromasa Tawarayama
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Publication number: 20240006642Abstract: A proton-conductive cell structure includes an air electrode, a hydrogen electrode, and a solid electrolyte layer disposed between the air electrode and the hydrogen electrode, wherein the solid electrolyte layer includes at least a first solid electrolyte layer formed of a compact material. The first solid electrolyte layer includes a metal oxide having a perovskite structure and represented by Formula 1 below, a ratio of Sr to a total amount of Ba and Sr in an air-electrode-side near-surface region of the first solid electrolyte layer is 0.4 or more, and a ratio of Sr to a total amount of Ba and Sr in a hydrogen-electrode-side near-surface region of the first solid electrolyte layer is 0.003 to 0.3.Type: ApplicationFiled: May 28, 2021Publication date: January 4, 2024Inventors: Takahiro HIGASHINO, Yohei NODA, Naho MIZUHARA, Mitsuyasu OGAWA, Hiromasa TAWARAYAMA, Masatoshi MAJIMA, Akiko FUNAKOSHI
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Patent number: 11757106Abstract: A porous body includes a framework having a three-dimensional network structure, the framework having a body including crystal grains including nickel and cobalt as constituent elements, the cobalt having a proportion in mass of 0.2 or more and 0.8 or less with respect to a total mass of the nickel and the cobalt, the crystal grains having a shorter grain diameter of 2 ?m or more, as determined in a first observed image obtained by observing the body of the framework in cross section at a magnification of 200 times.Type: GrantFiled: December 24, 2019Date of Patent: September 12, 2023Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Koma Numata, Masatoshi Majima, Mitsuyasu Ogawa, Kazuki Okuno, Naho Mizuhara, Ryoko Kanda
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Patent number: 11757101Abstract: The metal porous body having a framework of a three-dimensional network structure is disclosed. The framework is formed of a metal film, the framework has an interior that is hollow, and the metal film contains titanium metal or titanium alloy as a main component.Type: GrantFiled: March 13, 2018Date of Patent: September 12, 2023Assignee: Sumitomo Electric Industries, Ltd.Inventors: Koma Numata, Masatoshi Majima, Tomoyuki Awazu, Mitsuyasu Ogawa, Takahiro Higashino, Hiromasa Tawarayama
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Publication number: 20230167528Abstract: A composite material of the present disclosure contains a plurality of diamond particles, copper, and at least one first element selected from the group consisting of silicon, chromium, cobalt, nickel, molybdenum, titanium, vanadium, niobium, tantalum tungsten and aluminum, wherein the content rate of the first element based on the total mass of the copper and the first element is 50 ppm or higher and 2,000 ppm or lower.Type: ApplicationFiled: March 3, 2021Publication date: June 1, 2023Inventors: Masatoshi MAJIMA, Gouhei TOYOSHIMA, Kouichi TAKASHIMA
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Publication number: 20230135982Abstract: A electrochemical cell device includes: a cell having a first main surface and a second main surface opposite to the first main surface; a first current collector having a third main surface facing the first main surface; and a second current collector having a fourth main surface facing the second main surface. The cell is warped to protrude from the second main surface toward the first main surface. The third main surface is provided with a recess at a position facing a central portion of the first main surface. The fourth main surface includes a protrusion at a position facing a central portion of the second main surface. Each of the first current collector and the second current collector is constituted of one or more metal porous body sheets each composed of a metal porous body having a framework with a three-dimensional network structure.Type: ApplicationFiled: January 19, 2021Publication date: May 4, 2023Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Koma NUMATA, Masatoshi MAJIMA, Mitsuyasu OGAWA, Naho MIZUHARA, Yohei NODA
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Publication number: 20230099013Abstract: A porous body includes a framework having a three-dimensional network structure, the framework having a body including crystal grains including nickel and cobalt as constituent elements, the cobalt having a proportion in mass of 0.2 or more and 0.8 or less with respect to a total mass of the nickel and the cobalt, the crystal grains having a shorter grain diameter of 2 ?m or more, as determined in a first observed image obtained by observing the body of the framework in cross section at a magnification of 200 times.Type: ApplicationFiled: December 24, 2019Publication date: March 30, 2023Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Koma NUMATA, Masatoshi MAJIMA, Mitsuyasu OGAWA, Kazuki OKUNO, Naho MIZUHARA, Ryoko KANDA
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Publication number: 20230080341Abstract: A metal porous body sheet includes a metal porous body having a three-dimensional mesh structure and has a first main surface and a second main surface that is a reverse surface to the first main surface. The first main surface is formed with multiple holes extending from the first main surface toward the second main surface along a first direction.Type: ApplicationFiled: January 21, 2021Publication date: March 16, 2023Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takahiro HIGASHINO, Kazuki OKUNO, Hiromasa TAWARAYAMA, Masatoshi MAJIMA, Soichiro OKUMURA
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Patent number: 11545690Abstract: 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: GrantFiled: November 16, 2018Date of Patent: January 3, 2023Assignees: 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: 20220416255Abstract: A porous body including a framework having a three-dimensional network structure, the framework having a body including nickel, cobalt, a first element and a second element as constituent elements, the cobalt having a proportion in mass of 0.2 or more and 0.8 or less relative to a total mass of the nickel and the cobalt, the first element including of at least one element selected from the group including of boron, iron and calcium, the second element including of at least one element selected from the group consisting of sodium, magnesium, aluminum, silicon, potassium, titanium, chromium, copper, zinc and tin, the first and second elements together having a proportion in mass of 5 ppm or more and 50,000 ppm or less in total relative to the body of the framework.Type: ApplicationFiled: December 9, 2020Publication date: December 29, 2022Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Ryoko KANDA, Masatoshi MAJIMA, Mitsuyasu OGAWA, Kazuki OKUNO, Koma NUMATA, Yohei NODA
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Patent number: 11466343Abstract: 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: GrantFiled: December 6, 2018Date of Patent: October 11, 2022Assignees: 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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Publication number: 20220320530Abstract: A porous body comprises a framework having a three-dimensional network structure, the framework having a body including nickel and cobalt as constituent elements, the body of the framework including the cobalt at a proportion in mass of 0.2 or more and 0.8 or less relative to a total mass of the nickel and the cobalt, the framework having a surface with an arithmetic mean roughness of 0.05 ?m or more, the porous body being increased in volume by 1% or more for a shape of an external appearance thereof after the porous body undergoes a heat treatment in the atmosphere at 800° C. for 200 hours with a load of 16 kPa applied.Type: ApplicationFiled: April 15, 2020Publication date: October 6, 2022Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Koma NUMATA, Masatoshi MAJIMA, Mitsuyasu OGAWA, Yohei NODA
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Patent number: 11440799Abstract: A carbon material has at least either a peak related to diamond bonds, or a peak related to diamond-like bonds, appearing in a range of 1250 to 1400 cm?1 in a spectrum measured by Raman scattering spectrometry, and a full width at half maximum of a maximum peak, or each of full widths at half maximum of the maximum peak and a second largest peak, among peaks appearing in the range of 1250 to 1400 cm?1, has a signal less than 100 cm?1.Type: GrantFiled: November 21, 2017Date of Patent: September 13, 2022Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., KYOTO UNIVERSITYInventors: Tomoyuki Awazu, Masatoshi Majima, Yoshiki Nishibayashi, Toshiyuki Nohira, Kouji Yasuda, Kouji Hidaka
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Patent number: 11380946Abstract: A coolant includes a refrigerant, a porous plate-shaped heat insulator, and an enclosure in which the refrigerant and the heat insulator are enclosed in a sealed state, and the heat insulator has a thermal conductivity per unit area of 300 W/(K·m2) or less and a thickness equal to or greater than 0.5 mm and equal to or less than 10.0 mm.Type: GrantFiled: September 13, 2018Date of Patent: July 5, 2022Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD.Inventors: Koma Numata, Masatoshi Majima, Kazuki Okuno, Hiroki Hirai, Tetsuji Tanaka, Makoto Higashikozono, Junichi Ono
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Publication number: 20220149387Abstract: Provided is a proton conductor that achieves an improvement in transport number while suppressing a decrease in conductivity. The proton conductor contains a metal oxide having a perovskite structure and represented by formula (1): AaB1-x-yB?xMyO3-? (1), wherein an element A is at least one element selected from the group consisting of Ba, Sr, and Ca, an element B is at least one element selected from the group consisting of Zr and Ce, an element B? is Hf, an element M is at least one element selected from the group consisting of Y, Yb, Er, Ho, Tm, Gd, In, and Sc, ? is an oxygen deficiency amount, and “a”, “x”, and “y” satisfy 0.9?a?1.0, 0.1?y?0.2, and 0<x(1?y)?0.2.Type: ApplicationFiled: February 12, 2020Publication date: May 12, 2022Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takahiro HIGASHINO, Yohei NODA, Mitsuyasu OGAWA, Masatoshi MAJIMA, Kazuhiro GOTO
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Patent number: 11329295Abstract: A porous body with a framework having an integrally continuous, three-dimensional network structure, the framework comprising an outer shell and a core including one or both of a hollow or a conductive material, the outer shell including nickel and cobalt, the cobalt having a ratio in mass of 0.2 or more and 0.4 or less or 0.6 or more and 0.8 or less relative to the total mass of the nickel and the cobalt.Type: GrantFiled: April 25, 2019Date of Patent: May 10, 2022Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Koma Numata, Masatoshi Majima
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Patent number: 11271215Abstract: A metal porous body is a metal porous body mainly composed of nickel and having a framework of a three-dimensional network structure, Ni(OH)2 being present in a surface of the framework, when the metal porous body is subjected to at least 30 potential scans between a lower limit potential of ?0.10 V and an upper limit potential of +0.65 V with respect to a hydrogen standard potential in not less than 10% by mass and not more than 35% by mass of a potassium hydroxide aqueous solution, at least oxygen being detected within a depth of 5 nm from the surface, and hydrogen being detected at least in the surface.Type: GrantFiled: July 11, 2018Date of Patent: March 8, 2022Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC TOYAMA CO., LTD., PRIMEARTH EV ENERGY CO., LTD.Inventors: Kazuki Okuno, Masatoshi Majima, Hitoshi Tsuchida, Junichi Nishimura, Koutarou Kimura, Yusuke Shimizu