Patents by Inventor Shoji Kuradome

Shoji Kuradome 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).

  • Sealing member and capped bearing
    Patent number: 6003876
    Abstract: Sealing members, such as rolling bearing seal and oil seal, which are not only satisfactory in the fundamental properties required of them, such as sealing performance, heat resistance, mechanical strength and oil resistance, but also excellent in creep and PAG resistances. The member has an elastic part and is made by molding a modified nitrile rubber comprising a butadiene-acrylonitrile-acrylate copolymer and containing an organic peroxide as a vulcanizer, a metal oxide as a vulcanization aid, and a basic silicate as a reinforcing filler.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: December 21, 1999
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Takahiro Yamagishi, Shoji Kuradome