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:
Jun. 19, 2018
Filed:
Mar. 26, 2015
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Inventors:
Hirofumi Sunahara, Nagaokakyo, JP;
Takahiro Matsumoto, Nagaokakyo, JP;
Masachika Takata, Nagaokakyo, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyoto-Fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/053 (2006.01); G11B 5/48 (2006.01); H01L 41/23 (2013.01); H01L 41/331 (2013.01); H01L 41/338 (2013.01);
U.S. Cl.
CPC ...
H01L 41/0533 (2013.01); G11B 5/4873 (2013.01); H01L 41/23 (2013.01); H01L 41/331 (2013.01); H01L 41/338 (2013.01);
Abstract
A piezoelectric actuator that includes (a) a piezoelectric body made of piezoelectric ceramic, the piezoelectric body having two principal surfaces facing each other and having four side surfaces, (b) external electrodes on the principal surfaces, (c) recessed portions in the four side surfaces, and (d) a coating layer made of resin and provided on the four side surfaces. The coating layer covers the recessed portions in the four side surfaces.