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:
Jan. 06, 2015
Filed:
Dec. 18, 2013
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Toshihiro Shimizu, Fujimi-machi, JP;
Hiroshi Ito, Suwa, JP;
Jiro Kato, Suwa, JP;
Eiju Hirai, Minami minowa-mura, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01); B41J 2/16 (2006.01); H01L 41/047 (2006.01); H01L 41/09 (2006.01); B41J 2/14 (2006.01); H01L 27/20 (2006.01);
U.S. Cl.
CPC ...
B41J 2/045 (2013.01); B41J 2/1642 (2013.01); B41J 2/1629 (2013.01); H01L 41/0973 (2013.01); B41J 2/1631 (2013.01); H01L 41/0475 (2013.01); B41J 2/1646 (2013.01); B41J 2/161 (2013.01); B41J 2/1634 (2013.01); B41J 2002/14491 (2013.01); B41J 2/14233 (2013.01); H01L 27/20 (2013.01); H01L 41/047 (2013.01);
Abstract
There is provided a piezoelectric device comprising a first electrode, a piezoelectric layer that is formed above the first electrode, a second electrode that is formed above the piezoelectric layer and a coating layer that is formed above the second electrode consisting of tungsten or titanium.