Patents by Inventor Kazumasa SHIMATA

Kazumasa SHIMATA 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).

  • Conducting member for fuel cells, fuel cell, fuel cell stack, and method of producing conducting member for fuel cells
    Patent number: 10847830
    Abstract: Provided are conducting members for fuel cells obtained by applying a protective film forming agent to a surface-treated base material having a base material and at least one alloy plating layer formed on the base material in order to form a protective film on the alloy plating layer, and thereafter subjecting the surface-treated base material to an acid treatment. In the conducting members for fuel cells of the present invention, the protective film forming agent preferably contains a mixture of a compound having a thiol group and an azole-based compound, and/or an azole-based compound having a thiol group. In the conducting members for fuel cells of the present invention, the acid treatment is preferably a treatment using sulfuric acid or nitric acid.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: November 24, 2020
    Assignee: TOYO KOHAN CO., LTD.
    Inventors: Tomoyuki Tsuruda, Takahiro Yoshida, Kazumasa Shimata
  • CONDUCTING MEMBER FOR FUEL CELLS, FUEL CELL, FUEL CELL STACK, AND METHOD OF PRODUCING CONDUCTING MEMBER FOR FUEL CELLS
    Publication number: 20180198152
    Abstract: Provided are conducting members for fuel cells obtained by applying a protective film forming agent to a surface-treated base material having a base material and at least one alloy plating layer formed on the base material in order to form a protective film on the alloy plating layer, and thereafter subjecting the surface-treated base material to an acid treatment. In the conducting members for fuel cells of the present invention, the protective film forming agent preferably contains a mixture of a compound having a thiol group and an azole-based compound, and/or an azole-based compound having a thiol group. In the conducting members for fuel cells of the present invention, the acid treatment is preferably a treatment using sulfuric acid or nitric acid.
    Type: Application
    Filed: June 16, 2016
    Publication date: July 12, 2018
    Inventors: Tomoyuki TSURUDA, Takahiro YOSHIDA, Kazumasa SHIMATA