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:
Nov. 18, 2014
Filed:
Oct. 22, 2012
Applicants:
Kansho Yamamoto, Nagaokakyo, JP;
Teiji Yamamoto, Kyoto-Fu, JP;
Ivo P. Koutsaroff, Nagaokakyo, JP;
Inventors:
Assignee:
Murata Manufacturing Co., Ltd., Nagaokakyo-Shi, Kyoto-fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/08 (2006.01); H01L 41/316 (2013.01);
U.S. Cl.
CPC ...
H04L 41/094 (2013.01); H01L 41/316 (2013.01); H04L 41/1873 (2013.01); H04L 41/331 (2013.01);
Abstract
A piezoelectric actuator that includes a fixed electrode in a base substrate, a dielectric layer on the surface of the base substrate, a lower electrode that is at least partially separated from the base substrate, a piezoelectric layer on the surface of the lower electrode, and an upper electrode on the side of the surface of the piezoelectric layer. At least a portion of the upper electrode or the lower electrode serves as a movable electrode, which can be moved by distortion of the piezoelectric layer caused by application of a piezoelectric drive voltage.