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:
Oct. 26, 2004
Filed:
Jan. 08, 2003
Applicant:
Inventors:
Kazuhito Kurita, Kanagawa, JP;
Toru Morikawa, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02N 2/00 ;
U.S. Cl.
CPC ...
H02N 2/00 ;
Abstract
A drive unit includes a drive shaft at an end of a vibrating element that expands and contracts in the predetermined axial direction by application of a predetermined voltage, wherein a movable member is moved by differentiating the speed of expansion and contraction in the predetermined axial direction, a fixing member is fixed to one end of the vibrating element and the other end is fixed to the drive shaft, and a damping member fixes the fixing member to the drive unit while damping vibrations are provided.