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:
Jul. 07, 2017
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Shiro Yazaki, Chino, JP;
Takahiro Kamijo, Matsumoto, JP;
Tatsuro Torimoto, Matsumoto, JP;
Motoki Takabe, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/14 (2006.01); H01L 41/053 (2006.01); H01L 41/293 (2013.01); B41J 2/16 (2006.01); H01L 41/047 (2006.01); H01L 41/09 (2006.01); H01L 41/23 (2013.01); H01L 41/277 (2013.01); H01L 41/083 (2006.01);
U.S. Cl.
CPC ...
B41J 2/14201 (2013.01); B41J 2/14233 (2013.01); B41J 2/161 (2013.01); B41J 2/1646 (2013.01); H01L 41/0472 (2013.01); H01L 41/0533 (2013.01); H01L 41/083 (2013.01); H01L 41/09 (2013.01); H01L 41/0973 (2013.01); H01L 41/23 (2013.01); H01L 41/277 (2013.01); H01L 41/293 (2013.01); B41J 2002/14241 (2013.01); B41J 2002/14491 (2013.01);
Abstract
A piezoelectric element includes a plurality of individual electrodes, a piezoelectric layer formed on each of individual electrodes, and a common electrode which is formed on the piezoelectric layer and is an electrode common to the individual electrodes. Further, a protection film covering a region, which is not covered by the common electrode on the individual electrode, is provided.