Patents by Inventor Toshikatsu Hirose

Toshikatsu Hirose 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 laser-welding metal sheets having different thicknesses
    Patent number: 5245156
    Abstract: Metal sheets having different thicknesses are abutted and laser-welded. During laser welding, the laser beam weaves from side to side with respect to a weld line. As a result, the width of the weld bead is increased and the gradient of the weld bead surface is decreased whereby no sharp edge remains at the weld line. The resulting one-piece sheet can be used as a press material without any pre-pressing processing, such as grinding.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: September 14, 1993
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kanto Jidosha Kogyo Kabushiki Kaisha
    Inventors: Hideki Kamogawa, Toshikatsu Hirose
  • Television receiver
    Patent number: D281319
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: November 12, 1985
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Toshikatsu Hirose, Teruo Ishikawa, Takahiro Satoh, Yoshitaka Shigeta