Patents by Inventor Akiko Kuramitsu

Akiko Kuramitsu 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).

  • Solid electrolyte, method for manufacturing solid electrolyte, solid electrolyte laminate, method for manufacturing solid electrolyte laminate, and fuel cell
    Patent number: 9876248
    Abstract: Provided is a solid electrolyte made of yttrium-doped barium zirconate having hydrogen ion conductivity, a doped amount of yttrium being 15 mol % to 20 mol %, and a rate of increase in lattice constant at 100° C. to 1000° C. with respect to temperature changes being substantially constant. Also provided is a method for manufacturing the solid electrolyte. This solid electrolyte can be formed as a thin film, and a solid electrolyte laminate can be obtained by laminating electrode layers on this solid electrolyte. This solid electrolyte can be applied to an intermediate temperature operating fuel cell.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: January 23, 2018
    Assignees: SUMITOMO ELECTIC INDUSTRIES, LTD., KYOTO UNIVERSITY
    Inventors: Chihiro Hiraiwa, Masatoshi Majima, Atsushi Yamaguchi, Naho Mizuhara, Tetsuya Uda, Donglin Han, Akiko Kuramitsu
  • SOLID ELECTROLYTE, METHOD FOR MANUFACTURING SOLID ELECTROLYTE, SOLID ELECTROLYTE LAMINATE, METHOD FOR MANUFACTURING SOLID ELECTROLYTE LAMINATE, AND FUEL CELL
    Publication number: 20150044597
    Abstract: Provided is a solid electrolyte made of yttrium-doped barium zirconate having hydrogen ion conductivity, a doped amount of yttrium being 15 mol % to 20 mol %, and a rate of increase in lattice constant at 100° C. to 1000° C. with respect to temperature changes being substantially constant. Also provided is a method for manufacturing the solid electrolyte. This solid electrolyte can be formed as a thin film, and a solid electrolyte laminate can be obtained by laminating electrode layers on this solid electrolyte. This solid electrolyte can be applied to an intermediate temperature operating fuel cell.
    Type: Application
    Filed: March 26, 2013
    Publication date: February 12, 2015
    Inventors: Chihiro Hiraiwa, Masatoshi Majima, Atsushi Yamaguchi, Naho Mizuhara, Tetsuya Uda, Donglin Han, Akiko Kuramitsu