Patents by Inventor Yoshiki Aihara

Yoshiki Aihara 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).

  • Piezoelectric latching actuator having an impact receiving projectile
    Patent number: 4672257
    Abstract: Disclosed is a piezoelectric actuator comprising a pair of piezoelectric elements, bistable snap-action means, and projectile means attached to the snap-action means in an impact receiving relationship alternately with the piezoelectric elements. The projectile means has a mass sufficient to acquire an acceleration upon impact from each of the piezoelectric elements to cause the snap-action means to change state. The snap-action means may comprise an elongated bending element squeezed endwise between supports, the projectile means being carried by bending element at a point intermediate its ends.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: June 9, 1987
    Assignee: NEC Corporation
    Inventors: Takashi Oota, Tadao Uchikawa, Naoto Okihara, Yoshiki Aihara, Kazutoshi Wakamatsu
  • Piezoelectric relay with a piezoelectric longitudinal effect actuator
    Patent number: 4622484
    Abstract: A miniature relay having dimensions in the order of 30 mm.times.24 mm.times.4 mm is driven by an expansion type piezoelectric actuator element. The actuator drives an interconnected series of lever arms which rest on a mounting block. The actuator rests on an anchor block. The coefficients of thermal expansion for the actuator, the mounting block and the anchor block are mutually cancelling.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: November 11, 1986
    Assignee: NEC Corporation
    Inventors: Naoto Okihara, Yoshiki Aihara, Kazutoshi Wakamatsu