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. 05, 2016
Filed:
Aug. 22, 2013
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Inventors:
Michio Kadota, Nagaokakyo, JP;
Ivoyl P. Koutsaroff, Nagaokakyo, JP;
Tetsuya Kimura, Nagaokakyo, JP;
Hikari Tochishita, Nagaokakyo, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/64 (2006.01); H01G 7/06 (2006.01); H03H 9/54 (2006.01); H03H 3/04 (2006.01);
U.S. Cl.
CPC ...
H01G 7/06 (2013.01); H03H 9/542 (2013.01); H03H 9/64 (2013.01); H03H 9/6403 (2013.01); H03H 2003/0464 (2013.01);
Abstract
A variable capacitance element includes a piezoelectric substrate, a buffer layer located on the piezoelectric substrate with an orientation, a dielectric layer located on the buffer layer and having a relative dielectric constant that varies in accordance with an applied voltage, and a first electrode and a second electrode arranged to apply an electric field to the dielectric layer.