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:
Apr. 01, 2008
Filed:
Oct. 16, 2003
Kazuaki Kurihara, Kawasaki, JP;
Masaharu Hida, Kawasaki, JP;
Tsuyoshi Mita, Atsugi, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The present invention has an object to provide a small, light-weight, impact-resistant, high-accuracy, and low-cost piezoelectric actuator which can achieve a large displacement at a low drive voltage as well as an information storage device which incorporates the piezoelectric actuator and has high recording density. The piezoelectric actuator according to the present invention is equipped with a hinge platewhich has a central portion, two lateral portionsextending point-symmetrically from both ends of the central portion, and two limbsextending point-symmetrically and non-linear symmetrically from both ends of the central portionas well as with a piezoelectric elementwhich brings the two limbstoward and away from each other.