Patents by Inventor Hidetoshi Oichi

Hidetoshi Oichi 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).

  • Ignition apparatus for an internal combustion engine
    Patent number: 5632259
    Abstract: A cylindrical type ignition apparatus housed in a spark plug hole of a cylinder of an internal combustion engine is disclosed. A center core, a primary coil, a secondary core and a side core are provided, and a closed magnetic path is formed by connecting magnetically the center core and the side core by a core on a high voltage side and a core on a low voltage side, or a semi-closed magnetic path is formed by connecting magnetically the center core and the side core by a core on a low voltage side.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: May 27, 1997
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Eiichiro Konda, Noboru Sugiura, Kazutoshi Kobayashi, Kenichi Katagishi, Yoichi Anzo, Hidetoshi Oichi, Hiroshi Watanabe