Patents by Inventor Masaru Iwamoto

Masaru Iwamoto 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).

  • Speed up device for bicycle
    Patent number: 4296939
    Abstract: A speed up device for insertion between the spokes of bicycle wheels formed by bonding two plate members together so that the top and front portions of the device will have a narrow edge while the bottom and rear portions of the device diverge outwardly as compared to said top and front portions.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: October 27, 1981
    Inventor: Masaru Iwamoto