Patents by Inventor Shigenori Watanuki

Shigenori Watanuki 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).

  • Electric motor with breather
    Patent number: 5650677
    Abstract: An electric motor is provided with a breather, which is made of elastic material such as rubber and provided with three triangular tongues protruding in the longitudinal direction of a tubular shaped breather body around about an aperture opening in the outside air. According to this invention, formation of waterdrops and membranous water is hindered in the aperture of the breather, and water penetration into the electric motor is prevented effectively.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: July 22, 1997
    Assignee: Jidosha Denki Kogyo Kabushiki Kaisha
    Inventors: Sumio Furukawa, Mitsushiro Shimura, Shigenori Watanuki