Patents by Inventor Tomoyuki Awazu

Tomoyuki Awazu 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).

  • Patent number: 11228043
    Abstract: 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: Grant
    Filed: August 31, 2020
    Date of Patent: January 18, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kazuki Okuno, Takahiro Higashino, Masatoshi Majima, Tomoyuki Awazu
  • Publication number: 20210249666
    Abstract: A metal porous body includes a flat plate shape and having continuous pores, a framework of the metal porous body including an alloy layer containing nickel and at least one of chromium and tin, a cobalt layer being formed on a surface of the alloy layer.
    Type: Application
    Filed: June 22, 2018
    Publication date: August 12, 2021
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Koma NUMATA, Masatoshi MAJIMA, Tomoyuki AWAZU, Kazuki OKUNO, Chihiro HIRAIWA
  • Patent number: 11066724
    Abstract: A method for separating metal components from a treatment material containing a silicate and metal elements includes: a reaction step of reacting the treatment material and a molten alkali hydroxide in which bubbles due to water vapor derived from water are generated by heating a hydroxide of an alkali metal or an alkaline-earth metal and the water in a state where the hydroxide and the water coexist, to obtain a reaction product; and a first precipitation step of dissolving the reaction product of the treatment material and the molten alkali hydroxide after the reaction step in water, thereby generating a precipitate containing the metal elements.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: July 20, 2021
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Tomoyuki Awazu, Masatoshi Majima, Mitsutaka Tsubokura, Tetsuo Oishi
  • Publication number: 20200403252
    Abstract: 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: Application
    Filed: August 31, 2020
    Publication date: December 24, 2020
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kazuki OKUNO, Takahiro HIGASHINO, Masatoshi MAJIMA, Tomoyuki AWAZU
  • Publication number: 20200373586
    Abstract: 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: Application
    Filed: August 11, 2020
    Publication date: November 26, 2020
    Inventors: Kazuki Okuno, Masahiro Kato, Masatoshi Majima, Tomoyuki Awazu, Hidetoshi Saito, Junichi Nishimura, Keiji Shiraishi, Hitoshi Tsuchida, Kengo Tsukamoto
  • Patent number: 10811696
    Abstract: 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: Grant
    Filed: July 28, 2016
    Date of Patent: October 20, 2020
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kazuki Okuno, Takahiro Higashino, Masatoshi Majima, Tomoyuki Awazu
  • Publication number: 20200251750
    Abstract: 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: Application
    Filed: March 23, 2020
    Publication date: August 6, 2020
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kazunari MIYAMOTO, Tomoyuki AWAZU, Masatoshi MAJIMA, Kazuki OKUNO, Takahiro HIGASHINO
  • Publication number: 20200190680
    Abstract: 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: Application
    Filed: March 13, 2018
    Publication date: June 18, 2020
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Koma NUMATA, Masatoshi MAJIMA, Tomoyuki AWAZU, Mitsuyasu OGAWA, Kazuki OKUNO, Takahiro HIGASHINO
  • Publication number: 20200161666
    Abstract: A metal porous body includes a flat plate shape and having continuous pores, a framework of the metal porous body having an alloy layer containing nickel and chromium, and a silver layer being formed on a surface of the alloy layer.
    Type: Application
    Filed: June 22, 2018
    Publication date: May 21, 2020
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Koma NUMATA, Masatoshi MAJIMA, Tomoyuki AWAZU, Kazuki OKUNO, Chihiro HIRAIWA
  • Publication number: 20200102664
    Abstract: A method for manufacturing a titanium-plated member includes: preparing a substrate having an electrically conductive surface; immersing the substrate in a molten-salt titanium plating solution composition containing ions of at least one Group I metal selected from the group of Li+ and Na+, F?, and Tin+; forming a titanium plating film on the surface of the substrate by applying electric current to cause the substrate immersed in the molten-salt titanium plating solution composition to serve as a cathode and cause the surface of the substrate to be coated with titanium; cleaning the titanium plating film by bringing the titanium plating film into contact with a cleaning molten salt, the cleaning molten salt containing at least one compound selected from the group consisting of alkaline metal chloride, alkaline earth metal chloride, and potassium fluoride; and cleaning the titanium plating film with water.
    Type: Application
    Filed: March 13, 2018
    Publication date: April 2, 2020
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Koma NUMATA, Masatoshi MAJIMA, Tomoyuki AWAZU
  • Publication number: 20200099063
    Abstract: 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: Application
    Filed: July 28, 2016
    Publication date: March 26, 2020
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kazuki OKUNO, Takahiro HIGASHINO, Masatoshi MAJIMA, Tomoyuki AWAZU
  • Publication number: 20200080216
    Abstract: A molten-salt titanium plating solution composition contains: ions of at least one Group I metal selected from the group of lithium and sodium, fluoride ions, and titanium ions. The molten-salt titanium plating solution composition contains less than or equal to 5 mol % of potassium ions with respect to 100 mol % of all ion components contained in the molten-salt titanium plating solution composition.
    Type: Application
    Filed: March 13, 2018
    Publication date: March 12, 2020
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Koma NUMATA, Masatoshi MAJIMA, Tomoyuki AWAZU
  • Publication number: 20200063281
    Abstract: The titanium plating solution production method including measuring a titanium plating solution containing fluorine and titanium by cyclic voltammetry under the following conditions, and adding titanium to the titanium plating solution so that the potential difference between the spontaneous potential and the Ti3+/Ti4+ redox potential is 0.75 V or more. Conditions: when the temperature of the titanium plating solution is 650° C. to 850° C. and when glassy carbon is used as a working electrode, platinum is used as a pseudo-reference electrode and titanium is used as a counter electrode, the potential scanning is repeatedly performed on the working electrode for at least five times at a scanning speed of 1 mV/sec to 500 mV/sec between a lower potential limit which is the immersion potential of the working electrode and an upper potential limit which is a potential that is 2 V to 4 V higher than the lower potential limit.
    Type: Application
    Filed: September 12, 2017
    Publication date: February 27, 2020
    Applicants: Sumitomo Electric Industries, Ltd., Kyoto University
    Inventors: Koma NUMATA, Masatoshi MAJIMA, Tomoyuki AWAZU, Mitsuyasu OGAWA, Toshiyuki NOHIRA, Kouji YASUDA, Yutaro NORIKAWA
  • Publication number: 20200036011
    Abstract: 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: Application
    Filed: March 13, 2018
    Publication date: January 30, 2020
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Koma NUMATA, Masatoshi MAJIMA, Tomoyuki AWAZU, Mitsuyasu OGAWA, Takahiro HIGASHINO, Hiromasa TAWARAYAMA
  • Publication number: 20190359487
    Abstract: 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: Application
    Filed: November 21, 2017
    Publication date: November 28, 2019
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., KYOTO UNIVERSITY
    Inventors: Tomoyuki AWAZU, Masatoshi MAJIMA, Yoshiki NISHIBAYASHI, Toshiyuki NOHIRA, Kouji YASUDA, Kouji HIDAKA
  • Patent number: 10309022
    Abstract: An element recovery method and an element recovery apparatus are provided by which an element containing a high-purity rare earth element can be recovered at low cost. The element recovery method includes the steps of: preparing molten salt containing a rare earth element; and controlling electric potentials in a pair of electrode members at prescribed values while keeping the pair of electrode members in contact with the molten salt, thereby depositing the rare earth element existing in the molten salt on one of the pair of electrode members. In this way, as compared with the conventional wet separation method, an element such as a rare earth element that is to be recovered can be directly recovered from the molten salt in which the element is dissolved, so that the steps of the recovery method can be simplified and reduced in cost.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: June 4, 2019
    Assignees: Sumitomo Electric Industries, Ltd., Kyoto University
    Inventors: Tomoyuki Awazu, Takayasu Sugihara, Masatoshi Majima, Toshiyuki Nohira, Rika Hagiwara, Seitaro Kobayashi
  • Publication number: 20190093249
    Abstract: Provided is a conductive material including: a base material that is conductive at least at a surface thereof; and a titanium film on the surface of the base material, the titanium film having an average film thickness of not less than 1 ?m and not more than 300 ?m.
    Type: Application
    Filed: February 27, 2017
    Publication date: March 28, 2019
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., Kyoto University
    Inventors: Koma NUMATA, Masatoshi MAJIMA, Tomoyuki AWAZU, Mitsuyasu OGAWA, Toshiyuki NOHIRA, Kouji YASUDA, Yutaro NORIKAWA
  • Publication number: 20190081332
    Abstract: 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: Application
    Filed: November 8, 2018
    Publication date: March 14, 2019
    Inventors: Kazuki OKUNO, Tomoyuki AWAZU, Masahiro KATO, Masatoshi MAJIMA, Kengo TSUKAMOTO, Hitoshi TSUCHIDA, Hidetoshi SAITO
  • Publication number: 20190067703
    Abstract: 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: Application
    Filed: October 26, 2018
    Publication date: February 28, 2019
    Inventors: Kazuki OKUNO, Masahiro KATO, Masatoshi MAJIMA, Tomoyuki AWAZU, Hidetoshi SAITO, Junichi NISHIMURA, Keiji SHIRAISHI, Hitoshi TSUCHIDA, Kengo TSUKAMOTO
  • Patent number: 10205177
    Abstract: 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: Grant
    Filed: April 9, 2014
    Date of Patent: February 12, 2019
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC TOYAMA CO., LTD.
    Inventors: Kazuki Okuno, Tomoyuki Awazu, Masahiro Kato, Masatoshi Majima, Kengo Tsukamoto, Hitoshi Tsuchida, Hidetoshi Saito