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:
Sep. 17, 2013
Filed:
Dec. 12, 2012
Seiko Epson Corporation, Tokyo, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An actuator includes a mass section; a support section; a coupling section for coupling the mass section rotatably to the support section so as to support the mass section with cantilever structure; and a pair of driving sources including a piezoelectric element for rotating the mass section, wherein the pair of driving sources are provided separately from each other with respect to a central axis of rotation of the mass section, each of the driving sources is provided slidably with respect to the coupling section or the support section, and the actuator is structured such that it causes the pair of piezoelectric elements to expand and contract in phases opposite to each other, so as to rotate at least a part of the coupling section while torsionally deforming the mass section.