Patents by Inventor Katsuhiko KUSUNOKI

Katsuhiko KUSUNOKI 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).

  • SEAL RUBBER COMPOSITION AND SEALING MEMBER
    Publication number: 20230159806
    Abstract: A seal rubber composition contains a carboxyl group-containing acrylic rubber, silica, and two or more inorganic fibers, an amount of the silica per 100 parts by weight of the carboxyl group-containing acrylic rubber is 25 to 100 parts by weight, and a total amount of the inorganic fibers per 100 parts by weight of the carboxyl group-containing acrylic rubber is 35 to 100 parts by weight. A sealing member includes a sliding portion composed of a vulcanized product of the seal rubber composition.
    Type: Application
    Filed: September 20, 2022
    Publication date: May 25, 2023
    Applicants: KOYO SEALING TECHNO CO., LTD., JTEKT CORPORATION
    Inventors: Katsuhiko KUSUNOKI, Fumiaki KASAHARA
  • Sealing rubber composition and seal member
    Patent number: 10377932
    Abstract: A sealing rubber composition includes acrylic rubber, artificial graphite, and coupling agent.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: August 13, 2019
    Assignees: JTEKT CORPORATION, KOYO SEALING TECHNO CO., LTD.
    Inventors: Takeshi Kawabayashi, Fumiaki Kasahara, Katsuhiko Kusunoki
  • SEALING RUBBER COMPOSITION AND SEAL MEMBER
    Publication number: 20170051123
    Abstract: A sealing rubber composition includes acrylic rubber, artificial graphite, and coupling agent.
    Type: Application
    Filed: July 29, 2016
    Publication date: February 23, 2017
    Applicants: JTEKT CORPORATION, KOYO SEALING TECHNO CO., LTD.
    Inventors: Takeshi KAWABAYASHI, Fumiaki KASAHARA, Katsuhiko KUSUNOKI