Patents by Inventor Koji Buma

Koji Buma 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).

  • Horn switch of steering wheel
    Patent number: 4963704
    Abstract: In a horn switch of a steering wheel having a horn circuit make and break moving contact capable of contacting with a horn circuit, a bolt, an annular washer, a coil spring, and an annular insulator, are assembled to a horn pad mounting member as a unit, the mounting member on which these components have been assembled is assembled to a steering wheel body. As a result, the components may be assembled to the body in a unified form.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: October 16, 1990
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Koji Buma, Fuminori Komiya