Patents Assigned to Harison Denki Co., Ltd.
  • Lamp bulb device installed on board
    Patent number: 6045365
    Abstract: A lamp bulb device includes a non-capped lamp bulb having lead wires and a base portion supporting a cylindrical bottomed holder and having lead-wire outlet holes. The lead wires drawn out through the lead-wire outlet holes are extended through lead-wire guide grooves which are formed on a lower surface of the base portion, and lead wire portions within the lead-wire guide grooves are connected electrically to lands of a circuit board by soldering. The electrical connection is secured.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: April 4, 2000
    Assignee: Harison Denki Co., Ltd.
    Inventor: Ujiyasu Kihara
  • 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