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. 29, 2013
Filed:
May. 10, 2010
Kunihiro Kuwano, Kawasaki, JP;
Kunihiro Kuwano, Kawasaki, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A piezoelectric actuator with low susceptibility to friction and rubbing is provided. A piezoelectric actuator of the present invention is provided with protruding portions, first piezoelectric actuators and second piezoelectric actuators. The protruding portions protrude from a first face of a base member toward a moving member, and are capable of supporting the moving member. The first piezoelectric actuators are provided along members other than the protruding portions and are capable of expanding and contracting in an orthogonal direction that is orthogonal to the first face. The second piezoelectric actuators are provided along the members other than the protruding portions and are capable of expanding and contracting in a direction other than the orthogonal direction.