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:
Jul. 24, 2018
Filed:
Feb. 27, 2017
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Satoshi Kimura, Fujimi, JP;
Hitoshi Matsumoto, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/14 (2006.01); H01L 41/04 (2006.01); H01L 41/083 (2006.01); B41J 2/16 (2006.01);
U.S. Cl.
CPC ...
B41J 2/14233 (2013.01); B41J 2/161 (2013.01); H01L 41/04 (2013.01); H01L 41/083 (2013.01); B41J 2002/14241 (2013.01);
Abstract
A piezoelectric device includes a piezoelectric layer, a first moisture resistant layer, and a second moisture resistant layer stacked in this order. The first moisture resistant layer has a flexibility higher than that of the second moisture resistant layer, and the second moisture resistant layer has a moisture permeability lower than that of the first moisture resistant layer.