Patents by Inventor Kazutoshi Muraoka

Kazutoshi Muraoka 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).

  • Electromagnetic powder clutch
    Patent number: D463339
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: September 24, 2002
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazutoshi Muraoka, Fumio Ono, Yoshiharu Kobayashi