Patents by Inventor Shoko Inoue

Shoko Inoue 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 ceramic composition for actuators
    Patent number: 4882078
    Abstract: A piezoelectric ceramic composition for actuators, which consists essentially of a composite of perovskite compounds represented by the formulaPb.sub.(1-x) La.sub.x [z{(Zn.sub..alpha. Mg.sub.(1-.alpha.))1/3Nb.sub.2/3 }+(1-z){Zr.sub.y Ti.sub.(1-y) }].sub.(1-x/4) O.sub.3wherein 0.03.ltoreq.x.ltoreq.0.07, 0.50.ltoreq.y.ltoreq.0.65, o<z<0.20, and 0<.alpha.<1.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: November 21, 1989
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Tetsuhiko Nishimura, Swapan K. Basu, Yukio Chida, Yasuo Oguri, Shoko Inoue