Patents by Inventor Hironobu Akutagawa

Hironobu Akutagawa 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: 10804518
    Abstract: Provided is a material capable of further extending the life of a cell including a zinc species as a negative electrode active material. The present invention relates to an anion conducting membrane formed using an anion conducting membrane-forming material, the anion conducting membrane-forming material including a conjugated diene based polymer and/or a (meth)acrylic based polymer, and a compound containing at least one element selected from Groups I to XVII of the periodic table, the anion conducting membrane having a cross-section in which a ratio of a combined area of particles of the compound containing at least one element selected from Groups I to XVII of the periodic table to a combined area of the components of the anion conducting membrane-forming material other than the compound (particles of the compound/components of the anion conducting membrane-forming material other than the compound) is 70/30 to 30/70.
    Type: Grant
    Filed: May 30, 2016
    Date of Patent: October 13, 2020
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hiroki Tokushima, Hironobu Akutagawa, Hiroko Harada, Yasuyuki Takazawa, Satoshi Ogawa, Keisuke Kikuchi
  • Patent number: 10454123
    Abstract: A metal-supported cell comprises a laminate wherein a fuel electrode layer and a solid electrolyte layer are sequentially arranged in this order on a front surface of a metal support provided with a pore continuing from the front surface to the back surface. The solid electrolyte layer covers all parts of the surface of the fuel electrode layer, the parts being not in contact with the metal support. The peripheral part of the solid electrolyte layer is in contact with the front surface of the metal support. The metal support has a metal oxide layer. The fuel electrode layer contains NiO and Ni with molar ratio NiO/(Ni+NiO) of 45% or more, while containing gadolinium-doped ceria. The solid electrolyte layer mainly contains scandia-stabilized zirconia, while containing 0.1-10.0 mol of Bi atoms per 100 mol of Zr atoms having cross-sectional void fraction of 5.0% or less.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 22, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Atsushi Koizumi, Hironobu Akutagawa, Yohei Nishikawa
  • Publication number: 20190088969
    Abstract: A metal-supported cell comprises a laminate wherein a fuel electrode layer and a solid electrolyte layer are sequentially arranged in this order on a front surface of a metal support provided with a pore continuing from the front surface to the back surface. The solid electrolyte layer covers all parts of the surface of the fuel electrode layer, the parts being not in contact with the metal support. The peripheral part of the solid electrolyte layer is in contact with the front surface of the metal support. The metal support has a metal oxide layer. The fuel electrode layer contains NiO and Ni with molar ratio NiO/(Ni+NiO) of 45% or more, while containing gadolinium-doped ceria. The solid electrolyte layer mainly contains scandia-stabilized zirconia, while containing 0.1-10.0 mol of Bi atoms per 100 mol of Zr atoms having cross-sectional void fraction of 5.0% or less.
    Type: Application
    Filed: August 2, 2016
    Publication date: March 21, 2019
    Applicants: HONDA MOTOR CO., LTD., HONDA MOTOR CO., LTD.
    Inventors: Atsushi Koizumi, Hironobu Akutagawa, Yohei Nishikawa
  • Publication number: 20180175354
    Abstract: Provided is a material capable of further extending the life of a cell including a zinc species as a negative electrode active material. The present invention relates to an anion conducting membrane formed using an anion conducting membrane-forming material, the anion conducting membrane-forming material including a conjugated diene based polymer and/or a (meth)acrylic based polymer, and a compound containing at least one element selected from Groups I to XVII of the periodic table, the anion conducting membrane having a cross-section in which a ratio of a combined area of particles of the compound containing at least one element selected from Groups I to XVII of the periodic table to a combined area of the components of the anion conducting membrane-forming material other than the compound (particles of the compound/components of the anion conducting membrane-forming material other than the compound) is 70/30 to 30/70.
    Type: Application
    Filed: May 30, 2016
    Publication date: June 21, 2018
    Inventors: Hiroki TOKUSHIMA, Hironobu AKUTAGAWA, Hiroko HARADA, Yasuyuki TAKAZAWA, Satoshi OGAWA, Keisuke KIKUCHI
  • Publication number: 20140221568
    Abstract: Provision of a molding material excellent in molding accuracy without using a silicone resin and suitable for use in producing a molded body having high hardness and excellent appearance; a resin film formed from the molding material; a molded body obtained by using the molding material as a starting material; and a method for producing the molded body. A molding material used as a starting material in producing a molded body, containing a (meth)acrylic resin emulsion, a polyfunctional (meth)acrylic acid ester and a polymerization initiator; a resin film formed from the molding material; a molded body including a substrate and a molding material layer formed on the substrate wherein the molding material layer is formed from the molding material; and a method for producing the molded body.
    Type: Application
    Filed: July 3, 2012
    Publication date: August 7, 2014
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Teruo Kikuta, Kanji Nakao, Fuyuko Namimoto, Hironobu Akutagawa
  • Patent number: 7843625
    Abstract: The sheet for electrophoretic display devices includes a data display layer between electrically conductive layers of two opposite electrode films, the data display layer containing microcapsules for electrophoretic display devices and a binder resin, wherein the binder resin has a weight-average molecular weight of from 40,000 to 300,000 and a glass transition temperature of from ?50° C. to 10° C. This sheet can be produced by forming the data display layer on an electrically conductive layer of a first electrode film and putting an electrically conductive layer of a second electrode film on the data display layer, followed by lamination. This sheet can be used, as its applications, for electrophoretic display devices using the sheets for electrophoretic display devices, and electronic equipments using the electrophoretic display devices.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: November 30, 2010
    Assignees: Seiko Epson Corporation, Nippon Shokubai Co., Ltd.
    Inventors: Hitoshi Yamamoto, Harunobu Komatsu, Hironobu Akutagawa, Yuji Misawa
  • Publication number: 20090059349
    Abstract: The sheet for electrophoretic display devices according to the present invention includes a data displaying player between electrically conductive layers of two opposite electrode films, the data display layer containing microcapsules for electrophoretic display devices and a binder resin, wherein the binder resin has a weight-average molecular weight of from 40,000 to 300,000 and a glass transition temperature of from ?50° C. to 10° C. This sheet can be produced by forming the data display layer on an electrically conductive layer of a first electrode film and putting an electrically conductive layer of a second electrode film on the date displaying layer, followed by lamination. This sheet can be used, as its applications, for electrophoretic display devices using the sheets for electrophoretic display devices, and electronic equipments using the electrophoretic display devices.
    Type: Application
    Filed: August 21, 2008
    Publication date: March 5, 2009
    Inventors: Hitoshi Yamamoto, Harunobu Komatsu, Hironobu Akutagawa, Yuji Misawa