Patents Assigned to A.C.E. Tech Co., Ltd.
  • Patent number: 5903076
    Abstract: A vibration actuator for effecting paging is provided in which a vibrating section of an electroacoustic transducer is driven using low frequencies to collide it against a fixed section, and the vibration generated from the collision is transferred as external vibration. The vibrating section of a coil and the fixed section are bonded via an elastic member provided therebetween. The vibration generated at the time of collision can be effectively increased by flexibly supporting a magnetic circuit composed of a magnet, a yoke, etc. and by driving the magnetic circuit with alternating current which has a polarity. To permit easier assembly and to prevent damage or deterioration in characteristics, it is preferable to provide an annular molded member, which has hook-like projections, around the magnetic circuit and to support the magnetic circuit by a rubber member attached to the hook-like projections.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: May 11, 1999
    Assignee: A.C.E. Tech Co., Ltd.
    Inventor: Hideo Suyama