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.

Date of Patent:
Feb. 02, 2016

Filed:

Mar. 08, 2012
Applicants:

Yasuharu Onishi, Kanagawa, JP;

Jun Kuroda, Kanagawa, JP;

Motoyoshi Komoda, Kanagawa, JP;

Yuichiro Kishinami, Kanagawa, JP;

Shigeo Satou, Kanagawa, JP;

Yukio Murata, Kanagawa, JP;

Nobuhiro Kawashima, Kanagawa, JP;

Tatsuya Uchikawa, Kanagawa, JP;

Inventors:

Yasuharu Onishi, Kanagawa, JP;

Jun Kuroda, Kanagawa, JP;

Motoyoshi Komoda, Kanagawa, JP;

Yuichiro Kishinami, Kanagawa, JP;

Shigeo Satou, Kanagawa, JP;

Yukio Murata, Kanagawa, JP;

Nobuhiro Kawashima, Kanagawa, JP;

Tatsuya Uchikawa, Kanagawa, JP;

Assignee:

NEC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 17/00 (2006.01); H03B 28/00 (2006.01);
U.S. Cl.
CPC ...
H03B 28/00 (2013.01); H04R 17/00 (2013.01); H04R 2217/03 (2013.01); H04R 2499/11 (2013.01);
Abstract

Provided is an oscillator () including a piezoelectric body () that has a plurality of protrusions () on one surface thereof, a plurality of electrodes () that are respectively provided on the plurality of protrusions () so as to be separated from each other, and a plurality of electrodes () that are provided on the other surface opposite to the one surface of the piezoelectric body () so that each of the electrodes faces only one electrode (). Thus, it is possible to prevent variation in acoustic characteristics from occurring. Therefore, the oscillator capable of improving the acoustic characteristics of an electronic device is provided.


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