The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 2009
Filed:
Mar. 29, 2007
Hiroki Takahashi, Ome, JP;
Takahiro Mizushina, Kawagoe, JP;
Hiroki Takahashi, Ome, JP;
Takahiro Mizushina, Kawagoe, JP;
Casio Computer Co., Ltd., Tokyo, JP;
Abstract
A piezoelectric actuator comprising an elastic platewith a projectionprovided on one of both surfaces of the plate. A first pair of strip-like piezoelectric elementsare fixed to the other of both the surfaces of the plate such that each of the first pair of piezoelectric elements is disposed along a first straight line passing through the position of the projection on a respective one of its opposite sides. A second pair of strip-like piezoelectric elementsare fixed to the same surface of the plate as the first pair of piezoelectric elementssuch that each of the second pair of piezoelectric elements is disposed along a second straight line passing through the position of the projection perpendicular to the first straight line on a respective one of opposite sides of the position of the projection. Voltages are arranged to be applied to the respective piezoelectric elements of the first and second pairs as required so as to deform the plate, thereby causing the projection to deviate.