Patents by Inventor Tsuneyuki Ohsawa

Tsuneyuki Ohsawa 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).

  • Rubber compositions for tires
    Patent number: 4942192
    Abstract: A rubber composition for use in tire, particularly bead filler comprises 2.about.30 parts by weight of a particular modified novolak resin having a self-curability based on 100 parts by weight of rubber ingredient.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: July 17, 1990
    Assignees: Bridgestone Corporation, Ltd. Unitika
    Inventors: Takuo Yasuda, Hitoshi Kondo, Yoshiaki Echigo, Tsuneyuki Ohsawa, Yoshiaki Maekawa