Patents by Inventor Tooru Osawa

Tooru Osawa 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).

  • Patent number: D272730
    Type: Grant
    Filed: November 25, 1981
    Date of Patent: February 21, 1984
    Assignee: Bridgestone Tire Company Limited
    Inventors: Tooru Osawa, Hiroshi Kojima