Patents by Inventor Tetufumi Egami

Tetufumi Egami 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).

  • Front derailleur for a bicycle
    Patent number: 4223562
    Abstract: A front derailleur for a bicycle has a chain guide having two opposite guide plates spaced at an interval larger than the width of a driving chain and an outer guide plate of the two guide plates is provided with a chain face which is formed at a position substantially intermediate lengthwise and at an upper portion widthwise of the same and radially outward to a chain sprocket and projects toward an inner guide plate. The chain guide face and the inner surface of the inner guide plate are spaced at an interval slightly larger than the width of the driving chain and smaller than the interval between the two guide plates.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: September 23, 1980
    Assignee: Shimano Industrial Company, Limited
    Inventors: Masashi Nagano, Hideaki Fujimoto, Toshio Mizuno, Tetufumi Egami