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. 09, 2018
Filed:
Mar. 02, 2016
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Osamu Miyazawa, Shimosuwa, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02N 2/02 (2006.01); H01L 41/04 (2006.01); H02N 2/00 (2006.01); B25J 9/12 (2006.01); B25J 15/02 (2006.01); H02N 2/10 (2006.01);
U.S. Cl.
CPC ...
H02N 2/001 (2013.01); B25J 9/12 (2013.01); B25J 9/123 (2013.01); B25J 15/0293 (2013.01); H02N 2/004 (2013.01); H02N 2/103 (2013.01);
Abstract
A piezoelectric drive device includes multiple piezoelectric drive units that have a contact portion which can come into contact with a driven portion, and that have a piezoelectric substance. The number of the multiple piezoelectric drive units is 10 or more, an overall output from the multiple piezoelectric drive units is 0.3 W or greater, and a weight of the piezoelectric drive unit is 1 μg to 5 g.