Patents by Inventor Mithugi Ookubo

Mithugi Ookubo 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).

  • Core winding set for a motor
    Patent number: 5663601
    Abstract: A core winding set for a motor has a core with a plurality of salient poles, an insulation layer formed on a surface of the core and a winding wound around each of the salient poles. The insulation layer is formed by applying a liquid insulating agent. The insulating layer may be formed by laminating at least two types of liquid insulating materials on a surface of the core.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: September 2, 1997
    Assignees: Sankyo Seiki Mfg. Co., Ltd., Nagano Drilube Co., Ltd.
    Inventors: Shinichi Wakabayashi, Susumu Kobayashi, Mithugi Ookubo, Ethuji Yamashita