Patents by Inventor Yoshiyuki Hirokawa

Yoshiyuki Hirokawa 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).

  • Coating composition for lubrication
    Patent number: 5427698
    Abstract: A coating composition to be used for lubrication, which comprises a synthetic resin, a solid lubricant and a friction coefficient adjuster.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: June 27, 1995
    Assignees: Takata Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshiyuki Hirokawa, Isao Tonomura, Hirohumi Michioka, Yoshio Fuwa
  • Surface coating member
    Patent number: 5376454
    Abstract: The present invention concerns a surface coating sliding member made of rubber or plastic applied with a coating of excellent durability and high sliding property, in which the coating contains a solid lubricant such as molybdenum disulfide and a resin matrix, wherein the resin matrix comprises a fluoro-olefin vinyl ether polymer resin and/or fluoro-olefin vinyl ether vinyl ester copolymer.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: December 27, 1994
    Assignees: Takata Corporation, SST Inc.
    Inventors: Takamasa Sugasawa, Yoshiyuki Hirokawa