Patents by Inventor Ken-ichiro Kawase

Ken-ichiro Kawase 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).

  • Patent number: 3962659
    Abstract: A leaf spring and contact arrangement for an electromagnetic switch. A movable contact has a magnetic body attached thereto and is restrained by side arms secured to a housing and bent arms connecting the contact member to the side arms. The side arms are arranged symmetrically about the center of gravity of the movable contact. The contact member, side arms and bent arms are all in substantially the same plane. A magnetic force overcoming the restraining force causes movement of the movable contact in a direction perpendicular to said plane. The leaf spring may be formed in a repeat pattern consisting of a plurality of movable contacts each having a pair of bent arms associated therewith for connecting the movable contact to the secured side arms.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: June 8, 1976
    Assignee: Nippon Electric Company Limited
    Inventors: Ken-ichiro Kawase, Sadayuki Mitsuhashi, Kazutoshi Wakamatsu, Nobuo Mikami