Patents by Inventor Miyoji Ishizaki

Miyoji Ishizaki 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).

  • Dicycle
    Patent number: 4973071
    Abstract: A dicycle includes a pair of parallel wheels, a crankshaft to whose end portions the wheels are attached, upwardly extending control rods connected to and pivotable about the axles, and lever members which extend downwardly and contact the ground at a point which differs from the point of intersection of the vertical to the axles and the ground. When riding the dicycle, a turn can be accomplished easily by pulling a control rod and thereby raising a wheel from the ground.
    Type: Grant
    Filed: November 21, 1989
    Date of Patent: November 27, 1990
    Assignee: Masao Ishizaki
    Inventor: Miyoji Ishizaki