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. 13, 2009
Filed:
Sep. 24, 2004
Applicants:
Tohru Nakagawa, Shiga, JP;
Hideo Torii, Osaka, JP;
Inventors:
Tohru Nakagawa, Shiga, JP;
Hideo Torii, Osaka, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01); H01L 41/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A piezoelectric elementincludes a lower electrode, a piezoelectric filmand an upper electrodestacked in this order. The surface of the upper electrodeof the piezoelectric elementis exposed to a zirconium compound