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:
Mar. 20, 2018
Filed:
Aug. 12, 2015
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Yasuharu Hashimoto, Minamiminowa, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/047 (2006.01); H01L 41/053 (2006.01); H01L 41/09 (2006.01); B25J 9/12 (2006.01); B25J 15/02 (2006.01); H02N 2/00 (2006.01); H02N 2/10 (2006.01);
U.S. Cl.
CPC ...
B25J 9/12 (2013.01); B25J 15/0253 (2013.01); H02N 2/004 (2013.01); H02N 2/103 (2013.01); Y10S 901/23 (2013.01); Y10S 901/28 (2013.01); Y10S 901/29 (2013.01); Y10S 901/31 (2013.01);
Abstract
A piezoelectric driving device includes a vibrating plate, a first piezoelectric vibrating body which is disposed on the first surface of the vibrating plate; a second piezoelectric vibrating body which is disposed on the second surface of the vibrating plate; and a protrusion which is provided on the vibrating plate and comes into contact with a body to be driven, wherein the first piezoelectric vibrating body and the second piezoelectric vibrating body have asymmetry that the first piezoelectric vibrating body and the second piezoelectric vibrating body are asymmetrical to each other with respect to the vibrating plate.