Patents by Inventor Shuuzou Yamamoto

Shuuzou Yamamoto 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).

  • Socket for miniature lamp
    Patent number: 5927998
    Abstract: A miniature lamp socket is formed such that a tip portion is not brought into contact with the inner wall of the bottom of a lamp-installing hole, and lead-wire guide grooves communicating with lead-wire insertion holes extend in the forward and rearward directions opposite to each other as seen from the front of a filament. The miniature lamp socket has projection pieces for improving vibration-resistance.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: July 27, 1999
    Assignee: Harison Denki Co., Ltd.
    Inventors: Kiyokazu Hino, Shuuzou Yamamoto