Patents by Inventor Schuichiro Saito

Schuichiro Saito 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).

  • Driving device
    Patent number: 5225941
    Abstract: A driving device includes a driving member which is frictionally engaged with a driven member or a member coupled to the driven member and which is movably supported on a fixed member, a piezoelectric element disposed in contact with the driving member, and a driving circuit for applying a voltage to the piezoelectric element so as to make the speed of expansion of the piezoelectric element different from the speed of contraction thereof.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: July 6, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Schuichiro Saito, Masatoshi Nagano