Patents by Inventor Kazunori Kawauchi

Kazunori Kawauchi 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).

  • Tire rim structure and method of manufacture
    Patent number: 4561481
    Abstract: A tire rim structure and method of manufacture in which rows of sharply edged or pointed projections are integrally provided on the ear portions or bead seat portions of the rim. In accordance with the preferred embodiments of the invention, the projections may be pyramid shaped, triangular prism shaped or sawtooth shaped. The projections may be formed by applying a triangularly toothed roller or a grinding device to elongated ridges formed on the tire rim during an otherwise conventional extrusion process for obtaining a smooth tire rim.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: December 31, 1985
    Assignee: Daido Kogyo, Co., Ltd.
    Inventors: Kazunori Kawauchi, Junichi Sato