OSCILLATOR AND ELECTRONIC DEVICE - NEC CASIO MOBILE COMM LTD

Title:

OSCILLATOR AND ELECTRONIC DEVICE

Document Type and Number:

WIPO Patent Application WO/2012/132261

Kind Code:

A1

Abstract:

An oscillator (100) is provided with: a piezoelectric element (70) having a plurality of protrusions (72) on a first surface thereof; a plurality of electrodes (80) provided separate from one another on the plurality of protrusions (72); and a plurality of electrodes (82) provided to the surface on the opposite side to the first surface of the piezoelectric element (70) in such a manner that each electrode (82) only faces a single electrode (80). As a consequence, it is possible to minimize variation in acoustic properties. It is therefore possible to provide an oscillator with which it is possible to improve acoustic properties of electronic devices.

Inventors:

ONISHI YASUHARU (JP)
KURODA JUN (JP)
KOMODA MOTOYOSHI (JP)
KISHINAMI YUICHIRO (JP)
SATOU SHIGEO (JP)
MURATA YUKIO (JP)
KAWASHIMA NOBUHIRO (JP)
UCHIKAWA TATSUYA (JP)

Application Number:

PCT/JP2012/001603

Publication Date:

October 04, 2012

Filing Date:

March 08, 2012

Export Citation:

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Assignee:

NEC CASIO MOBILE COMM LTD (JP)
ONISHI YASUHARU (JP)
KURODA JUN (JP)
KOMODA MOTOYOSHI (JP)
KISHINAMI YUICHIRO (JP)
SATOU SHIGEO (JP)
MURATA YUKIO (JP)
KAWASHIMA NOBUHIRO (JP)
UCHIKAWA TATSUYA (JP)

International Classes:

H04R17/00; H04R3/00

Domestic Patent References:

WO2005094121A1

2005-10-06

Foreign References:

JP2005286690A	2005-10-13
JP2004349817A	2004-12-09
JPH04111599A	1992-04-13
JP2008118212A	2008-05-22
JP2007307288A	2007-11-29
JPS6210594U	1987-01-22
JPH0541899A	1993-02-19
JPH0984193A	1997-03-28
JPS62148000U	1987-09-18
JPH07163166A	1995-06-23
JPH0575372A	1993-03-26
JP2006332616A	2006-12-07

Other References: