Patents by Inventor Kanji Tsujimura

Kanji Tsujimura 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).

  • Guard for chain wheel
    Patent number: 4515386
    Abstract: A guard for a chain wheel on a bicycle used in the mountains. It extends along the lower half of the outer periphery of the chain wheel and has one or more shock absorbing portions formed by partially bending the guard itself.
    Type: Grant
    Filed: August 10, 1983
    Date of Patent: May 7, 1985
    Inventor: Kanji Tsujimura