Patents Represented by Law Firm Wenderoth, Lind & Ponack Co.
  • Circular direction vibrator
    Patent number: 4857792
    Abstract: A circular direction vibrator has a pair of piezoelectric bimorph type vibrators, and a carrier member serving as a fulcrum of a circular direction vibration shaft and adapted to support the vibrators in a cantilever fashion, the pair of vibrators extending in opposite directions with respect to each other from the carrier member and the vibrators connected in such a manner as to generate the same phase voltage when vibrating in a circular direction.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: August 15, 1989
    Assignee: Yamaichi Electric Mfg. Ltd.
    Inventors: Shinsuke Miura, Susumu Ishizuka, Setsuo Kojima