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. 19, 2011
Filed:
Feb. 01, 2008
Applicant:
Yutaka Yamazaki, Nagano, JP;
Inventor:
Yutaka Yamazaki, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04F 5/00 (2006.01); H01L 41/08 (2006.01); H02N 2/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A piezoelectric transducer that excites longitudinal vibration has a piezoelectric element, and a reinforcing member that is laminated with and affixed to the piezoelectric element and has a first void part. The first void part includes the center part of a location where strain produced by longitudinal vibration in the piezoelectric transducer or the reinforcing member or piezoelectric element is greatest.