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:
Sep. 29, 2015
Filed:
Sep. 09, 2009
Applicants:
Mayumi Ueno, Suwa, JP;
Takamitsu Higuchi, Matsumoto, JP;
Takeshi Kijima, Matsumoto, JP;
Inventors:
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/45 (2006.01); H03H 9/02 (2006.01); H01L 41/08 (2006.01); H01L 41/187 (2006.01); H01L 41/318 (2013.01);
U.S. Cl.
CPC ...
H03H 9/02031 (2013.01); H01L 41/0815 (2013.01); H01L 41/1873 (2013.01); H03H 9/02574 (2013.01); H01L 41/318 (2013.01);
Abstract
A piezoelectric laminate including a base and a first piezoelectric layer formed above the base and including potassium sodium niobate. The first piezoelectric layer is shown by a compositional formula (KNa)NbO, 'a' and 'x' in the compositional formula being respectively 0.1<a<1 and 1≦x≦1.2.