Patents by Inventor Hitoshi Tsuchida
Hitoshi Tsuchida 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: 20210040638Abstract: A method for producing a metal porous body includes the steps of: performing electrical conduction treatment on a surface of a skeleton of a sheet-like resin porous body having the skeleton with a three-dimensional network structure, to obtain a conductive resin porous body having a conductive layer; performing electroplating treatment on a surface of a skeleton of the conductive resin porous body to obtain a plated resin porous body having a metal plating layer; and performing treatment of removing at least the resin porous body from the plated resin porous body to obtain a metal porous body. In the electroplating treatment, power is supplied to a rotation shaft of a rotating electrode roller while a contact surface of a power supply brush composed of a sintered body is brought into sliding contact with the rotation shaft, with a lubricant, not containing conductive metal powder, interposed therebetween.Type: ApplicationFiled: August 10, 2018Publication date: February 11, 2021Applicant: SUMITOMO ELECTRIC TOYAMA CO., LTD.Inventors: Hitoshi TSUCHIDA, Ryuuichi YOSHIKAWA
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Publication number: 20210025068Abstract: A method for producing a metal porous body includes the steps of: performing electrical conduction treatment on a surface of a skeleton of a sheet-like resin porous body having the skeleton with a three-dimensional network structure, to obtain a conductive resin porous body having a conductive layer; performing electroplating treatment on a surface of a skeleton of the conductive resin porous body to obtain a plated resin porous body having a metal plating layer; and performing treatment of removing at least the resin porous body from the plated resin porous body to obtain a metal porous body. In the electroplating treatment, power was supplied to a rotation shaft of a rotating electrode roller by bringing a power supply brush formed by a material containing carbon as a main component into sliding contact with the rotation shaft.Type: ApplicationFiled: August 10, 2018Publication date: January 28, 2021Applicant: SUMITOMO ELECTRIC TOYAMA CO., LTD.Inventors: Hitoshi TSUCHIDA, Ryuuichi YOSHIKAWA, Hiroshi OOI
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Publication number: 20200373585Abstract: 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: ApplicationFiled: July 11, 2018Publication date: November 26, 2020Applicants: 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
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Publication number: 20200373586Abstract: Provided are a porous metal body that is excellent in terms of corrosion resistance and that is suitable for a collector for batteries such as lithium-ion batteries, capacitors, or fuel cells; and methods for producing the porous metal body. A production method includes a step of coating a porous nickel body with an alloy containing at least nickel and tungsten or a metal containing at least tin; and a subsequent step of a heat treatment. Another production method includes a step of forming a nickel-plated layer on a porous base and then continuously forming an alloy-plated layer containing at least nickel and tungsten or tin, a step of removing the porous base, and a step of reducing metal. Such a method can provide a porous metal body in which tungsten or tin is diffused in a porous nickel body or a nickel-plated layer.Type: ApplicationFiled: August 11, 2020Publication date: November 26, 2020Inventors: Kazuki Okuno, Masahiro Kato, Masatoshi Majima, Tomoyuki Awazu, Hidetoshi Saito, Junichi Nishimura, Keiji Shiraishi, Hitoshi Tsuchida, Kengo Tsukamoto
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Publication number: 20200280073Abstract: A metal porous body including a frame of a three-dimensional network structure, wherein the metal porous body has an outer appearance of a sheet shape, the frame is an alloy containing at least nickel and chromium, and is dissolved with iron in solid state, and the number of aluminum oxide powder adhered to the surface of the frame is 10 or less in 1 cm2 of the apparent area of the metal porous body.Type: ApplicationFiled: June 5, 2019Publication date: September 3, 2020Applicant: SUMITOMO ELECTRIC TOYAMA CO., LTD.Inventors: Hitoshi TSUCHIDA, Junichi NISHIMURA, Seiji MABUCHI
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Publication number: 20200274170Abstract: A metal porous body having a connection portion where end portions in a longitudinal direction X of at least two long sheet-shaped metal porous materials are connected in a manner overlapping with each other, each of the metal porous materials having a frame with a three-dimensional network structure, the metal porous body having a recess with a thickness thinner than a thickness of each of the metal porous materials, in the connection portion, the frames of the at least two metal porous materials being entangled with each other, in the recess.Type: ApplicationFiled: July 2, 2019Publication date: August 27, 2020Applicant: SUMITOMO ELECTRIC TOYAMA CO., LTD.Inventors: Hitoshi TSUCHIDA, Toshitaka NAKAGAWA, Junichi NISHIMURA
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Publication number: 20190259508Abstract: A connector terminal wire contains 0.1% by mass or more and 1.5% by mass or less of Fe, 0.02% by mass or more and 0.7% by mass or less of P, and 0% by mass or more and 0.7% by mass or less, in total, of at least one of Sn and Mg, with the balance being Cu and impurities.Type: ApplicationFiled: September 12, 2017Publication date: August 22, 2019Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC TOYAMA CO., LTD.Inventors: Akiko Inoue, Kei Sakamoto, Tetsuya Kuwabara, Taichiro Nishikawa, Kiyotaka Utsunomiya, Minoru Nakamoto, Yusuke Oshima, Yoshihiro Nakai, Kazuhiro Nanjo, Hitoshi Tsuchida, Dai Kamogawa
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Patent number: 10287646Abstract: Provided is a porous metal body having superior corrosion resistance to conventional metal porous bodies composed of nickel-tin binary alloys and conventional metal porous bodies composed of nickel-chromium binary alloys. The porous metal body has a three-dimensional network skeleton and contains at least nickel, tin, and chromium. The concentration of chromium contained in the porous metal body is highest at the surface of the skeleton of the porous metal body and decreases toward the inner side of the skeleton. In one embodiment, the chromium concentration at the surface of the skeleton of the porous metal body is more preferably 3% by mass or more and 70% by mass or less.Type: GrantFiled: April 9, 2014Date of Patent: May 14, 2019Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC TOYAMA CO., LTD.Inventors: Kazuki Okuno, Masatoshi Majima, Kengo Tsukamoto, Hitoshi Tsuchida, Hidetoshi Saito
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Publication number: 20190081332Abstract: An object of the present invention is to inexpensively provide a porous metal body which is usable for an electrode of a fuel cell or the like and which has excellent corrosion resistance. There is provided a porous metal body for a fuel cell, which is a sheet-shaped porous metal body, including at least nickel, tin, and chromium, in which the chromium concentration of at least one surface of the porous metal body is 3% to 50% by mass. In the porous metal body, preferably, the chromium concentration of one surface is higher than the chromium concentration of another surface.Type: ApplicationFiled: November 8, 2018Publication date: March 14, 2019Inventors: Kazuki OKUNO, Tomoyuki AWAZU, Masahiro KATO, Masatoshi MAJIMA, Kengo TSUKAMOTO, Hitoshi TSUCHIDA, Hidetoshi SAITO
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Publication number: 20190067703Abstract: Provided are a porous metal body that is excellent in terms of corrosion resistance and that is suitable for a collector for batteries such as lithium-ion batteries, capacitors, or fuel cells; and methods for producing the porous metal body. A production method includes a step of coating a porous nickel body with an alloy containing at least nickel and tungsten or a metal containing at least tin; and a subsequent step of a heat treatment. Another production method includes a step of forming a nickel-plated layer on a porous base and then continuously forming an alloy-plated layer containing at least nickel and tungsten or tin, a step of removing the porous base, and a step of reducing metal. Such a method can provide a porous metal body in which tungsten or tin is diffused in a porous nickel body or a nickel-plated layer.Type: ApplicationFiled: October 26, 2018Publication date: February 28, 2019Inventors: Kazuki OKUNO, Masahiro KATO, Masatoshi MAJIMA, Tomoyuki AWAZU, Hidetoshi SAITO, Junichi NISHIMURA, Keiji SHIRAISHI, Hitoshi TSUCHIDA, Kengo TSUKAMOTO
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Publication number: 20190048450Abstract: A wire material for a connector terminal contains 0.1% to 1.5% by mass of Fe, 0.05% to 0.7% by mass of Ti, and 0% to 0.5% by mass of Mg, with the balance being Cu and impurities.Type: ApplicationFiled: February 16, 2017Publication date: February 14, 2019Inventors: Kei Sakamoto, Akiko Inoue, Tetsuya Kuwabara, Taichiro Nishikawa, Kiyotaka Utsunomiya, Minoru Nakamoto, Yusuke Oshima, Hitoshi Tsuchida, Dai Kamogawa
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Patent number: 10205177Abstract: A porous metal body is provided that is inexpensive, usable for an electrode of a fuel cell or the like, and has excellent corrosion resistance. There is provided a porous metal body for a fuel cell, which is a sheet-shaped porous metal body, including at least nickel, tin, and chromium, in which the chromium concentration of at least one surface of the porous metal body is 3% to 50% by mass. In the porous metal body, preferably, the chromium concentration of one surface is higher than the chromium concentration of another surface.Type: GrantFiled: April 9, 2014Date of Patent: February 12, 2019Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC TOYAMA CO., LTD.Inventors: Kazuki Okuno, Tomoyuki Awazu, Masahiro Kato, Masatoshi Majima, Kengo Tsukamoto, Hitoshi Tsuchida, Hidetoshi Saito
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Patent number: 10164262Abstract: Provided are a porous metal body that is excellent in terms of corrosion resistance and that is suitable for a collector for batteries such as lithium-ion batteries, capacitors, or fuel cells; and methods for producing the porous metal body. A production method includes a step of coating a porous nickel body with an alloy containing at least nickel and tungsten or a metal containing at least tin; and a subsequent step of a heat treatment. Another production method includes a step of forming a nickel-plated layer on a porous base and then continuously forming an alloy-plated layer containing at least nickel and tungsten or tin, a step of removing the porous base, and a step of reducing metal. Such a method can provide a porous metal body in which tungsten or tin is diffused in a porous nickel body or a nickel-plated layer.Type: GrantFiled: December 9, 2016Date of Patent: December 25, 2018Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC TOYAMA CO., LTD.Inventors: Kazuki Okuno, Masahiro Kato, Masatoshi Majima, Tomoyuki Awazu, Hidetoshi Saito, Junichi Nishimura, Keiji Shiraishi, Hitoshi Tsuchida, Kengo Tsukamoto
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Patent number: 10128513Abstract: An object of the present invention is to provide, at a low cost, a porous metal body that can be used in an electrode of a fuel cell and that has better corrosion resistance. The porous metal body has a three-dimensional mesh-like structure and contains nickel (Ni), tin (Sn), and chromium (Cr). A content ratio of the tin is 10% by mass or more and 25% by mass or less, and a content ratio of the chromium is 1% by mass or more and 10% by mass or less. On a cross section of a skeleton of the porous metal body, the porous metal body contains a solid solution phase of chromium, nickel, and tin. The solid solution phase contains a solid solution phase of chromium and trinickel tin (Ni3Sn), the solid solution phase having a chromium content ratio of 2% by mass or less, and does not contain a solid solution phase that is other than a solid solution phase of chromium and trinickel tin (Ni3Sn) and that has a chromium content ratio of less than 1.5% by mass.Type: GrantFiled: February 20, 2015Date of Patent: November 13, 2018Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC TOYAMA CO., LTD.Inventors: Kazuki Okuno, Masahiro Kato, Tomoyuki Awazu, Masatoshi Majima, Kengo Tsukamoto, Hitoshi Tsuchida, Hidetoshi Saito
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Publication number: 20180030607Abstract: A method for producing a nickel alloy porous body includes a step of applying a coating material that contains a nickel alloy powder of nickel and an added metal, the nickel alloy powder having a volume-average particle size of 10 ?m or less, onto a surface of a skeleton of a resin formed body having a three-dimensional mesh-like structure; a step of plating with nickel the surface of the skeleton of the resin formed body onto which the coating material has been applied; a step of removing the resin formed body; and a step of diffusing the added metal into the nickel by a heat treatment.Type: ApplicationFiled: January 22, 2016Publication date: February 1, 2018Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC TOYAMA CO., LTD.Inventors: Kazuki OKUNO, Takahiro HIGASHINO, Tomoyuki AWAZU, Masatoshi MAJIMA, Junichi NISHIMURA, Kengo TSUKAMOTO, Hitoshi TSUCHIDA, Hidetoshi SAITO
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Publication number: 20170092957Abstract: Provided are a porous metal body that is excellent in terms of corrosion resistance and that is suitable for a collector for batteries such as lithium-ion batteries, capacitors, or fuel cells; and methods for producing the porous metal body. A production method includes a step of coating a porous nickel body with an alloy containing at least nickel and tungsten or a metal containing at least tin; and a subsequent step of a heat treatment. Another production method includes a step of forming a nickel-plated layer on a porous base and then continuously forming an alloy-plated layer containing at least nickel and tungsten or tin, a step of removing the porous base, and a step of reducing metal. Such a method can provide a porous metal body in which tungsten or tin is diffused in a porous nickel body or a nickel-plated layer.Type: ApplicationFiled: December 9, 2016Publication date: March 30, 2017Inventors: Kazuki OKUNO, Masahiro KATO, Masatoshi MAJIMA, Tomoyuki AWAZU, Hidetoshi SAITO, Junichi NISHIMURA, Keiji SHIRAISHI, Hitoshi TSUCHIDA, Kengo TSUKAMOTO
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Publication number: 20170069918Abstract: An object of the present invention is to provide, at a low cost, a porous metal body that can be used in an electrode of a fuel cell and that has better corrosion resistance. The porous metal body has a three-dimensional mesh-like structure and contains nickel (Ni), tin (Sn), and chromium (Cr). A content ratio of the tin is 10% by mass or more and 25% by mass or less, and a content ratio of the chromium is 1% by mass or more and 10% by mass or less. On a cross section of a skeleton of the porous metal body, the porous metal body contains a solid solution phase of chromium, nickel, and tin. The solid solution phase contains a solid solution phase of chromium and trinickel tin (Ni3Sn), the solid solution phase having a chromium content ratio of 2% by mass or less, and does not contain a solid solution phase that is other than a solid solution phase of chromium and trinickel tin (Ni3Sn) and that has a chromium content ratio of less than 1.5% by mass.Type: ApplicationFiled: February 20, 2015Publication date: March 9, 2017Inventors: Kazuki OKUNO, Masahiro KATO, Tomoyuki AWAZU, Masatoshi MAJIMA, Kengo TSUKAMOTO, Hitoshi TSUCHIDA, Hidetoshi SAITO
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Publication number: 20160156045Abstract: An object of the present invention is to inexpensively provide a porous metal body which is usable for an electrode of a fuel cell or the like and which has excellent corrosion resistance. There is provided a porous metal body for a fuel cell, which is a sheet-shaped porous metal body, including at least nickel, tin, and chromium, in which the chromium concentration of at least one surface of the porous metal body is 3% to 50% by mass. In the porous metal body, preferably, the chromium concentration of one surface is higher than the chromium concentration of another surface.Type: ApplicationFiled: April 9, 2014Publication date: June 2, 2016Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Electric Toyama Co., Ltd.Inventors: Kazuki OKUNO, Tomoyuki AWAZU, Masahiro KATO, Masatoshi MAJIMA, Kengo TSUKAMOTO, Hitoshi TSUCHIDA, Hidetoshi SAITO
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Publication number: 20160138164Abstract: Provided is a porous metal body containing at least nickel, tin, and chromium. An example of a method of producing such a porous metal body is a method including a conductive-coating-layer formation step of forming a conductive coating layer containing chromium on a surface of a porous base formed of a resin material; a metal-layer formation step of forming a nickel layer and a tin layer in any order on a surface of the conductive coating layer; a removal step of removing the porous base; and a diffusion step of, by a heat treatment, causing interdiffusion of metal atoms between the nickel layer and the tin layer and diffusing chromium contained in the conductive coating layer into the nickel layer and the tin layer.Type: ApplicationFiled: January 21, 2016Publication date: May 19, 2016Inventors: Kazuki Okuno, Masahiro Kato, Tomoyuki Awazu, Masatoshi Majima, Kengo Tsukamoto, Hitoshi Tsuchida, Hidetoshi Saito
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Publication number: 20160130678Abstract: Provided is a porous metal body having superior corrosion resistance to conventional metal porous bodies composed of nickel-tin binary alloys and conventional metal porous bodies composed of nickel-chromium binary alloys. The porous metal body has a three-dimensional network skeleton and contains at least nickel, tin, and chromium. The concentration of chromium contained in the porous metal body is highest at the surface of the skeleton of the porous metal body and decreases toward the inner side of the skeleton. In one embodiment, the chromium concentration at the surface of the skeleton of the porous metal body is more preferably 3% by mass or more and 70% by mass or less.Type: ApplicationFiled: April 9, 2014Publication date: May 12, 2016Inventors: Kazuki OKUNO, Masatoshi MAJIMA, Kengo TSUKAMOTO, Hitoshi TSUCHIDA, Hidetoshi SAITO