Patents by Inventor Toshio Stou

Toshio Stou 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).

  • Method of and apparatus for serrating a steering wheel
    Patent number: 4872793
    Abstract: The boss of a steering wheel is serrated by setting the steering wheel on a serrating broaching machine, inserting a serrating broach into a through hole defined in the boss of the steering wheel, and then pulling the serrating broach with a broach chuck gripping the serrating broach to cut serrations on an inner surface of the through hole in the boss. The steering wheel is positioned nonrotatably in a prescribed angular orientation on the broaching machine while placing the boss on a holder of the broaching machine. Then, the serrating broach is inserted through the through hole in the boss into the holder of the broaching machine while holding the serrating broach in a prescribed angular orientation around the axis thereof with respect to the broach chuck. Finally, the serrating broach is pulled from the boss with the broach chuck gripping the serrating broach to cut serrations on the inner surface of the boss.
    Type: Grant
    Filed: October 4, 1988
    Date of Patent: October 10, 1989
    Assignees: Nihon Plast Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takehiro Minagawa, Toshio Stou, Masao Miyata, Kenji Nemoto, Kuninobu Uchida