Patents by Inventor Sadao Endo

Sadao Endo 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).

  • Motorized board with pressure actuated power switch
    Patent number: 5487441
    Abstract: A powered playing instrument is provided in which a plurality of wheels and a driving wheel propelled by a geared motor are mounted to the bottom surface of a board on which a foot or both feet of the player are placed and in action, the geared motor for the driving wheel is switched on and off by a remote or radio control or by sensing a pressure exerted on to the board.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: January 30, 1996
    Assignee: Unitec Corporation
    Inventors: Sadao Endo, Yoshito Tokinaga, Kazuo Sasaki