Patents by Inventor Tohru Ohnuki

Tohru Ohnuki 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).

  • Resin-filled permanent-magnet stepping motor
    Patent number: 4841190
    Abstract: A permanent-magnet stepping motor includes a stator which has resinous protrusions at its one end. An end plate disposed on one side of the stator is molded integrally with the stator. A flange plate is fixed to the other side of the stator, using the protrusions. The stator includes four stator yokes and two annular coils that are disposed at given positions. These yokes and coils are coupled together by molding a resin.
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: June 20, 1989
    Assignee: Minebea Co., Ltd.
    Inventors: Kunitake Matsushita, Hiroshi Sakuma, Takayuki Yamawaki, Takashi Yoshikura, Hiroshi Sano, Yuzuru Suzuki, Michihiro Torii, Tohru Ohnuki