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:
Apr. 02, 2013
Filed:
Aug. 20, 2012
Applicants:
Takaaki Koizumi, Tajimi, JP;
Naoki Ogawa, Tokai, JP;
Inventors:
Takaaki Koizumi, Tajimi, JP;
Naoki Ogawa, Tokai, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A laminate includes a ceramic substrate, a piezoelectric element, and an intermediate layer. The piezoelectric element includes a lower electrode. The intermediate layer is formed between the substrate and the lower electrode of the piezoelectric element. The intermediate layer contains a metal or an oxide thereof as a main component. The metal is different from a metal contained in the lower electrode. The intermediate layer further contains holes.