Patent · US Active

Oscillation device and electronic apparatus

US9185495B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

NEC CORPORATION · JP

Inventors

Yasuharu Onishi · Yokohama, JP
Jun Kuroda · Tokyo, JP
Yukio Murata · Yokohama, JP
Motoyoshi Komoda · Tokyo, JP
Nobuhiro Kawashima · Yokohama, JP
Yuichiro Kishinami · Yokohama, JP
Shigeo Satou · Yokohama, JP

Key dates

Filing date	Jun 28, 2011
Grant date	Nov 10, 2015
Priority date	—
Expiry date	Jul 7, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2499/11
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An oscillation device includes: a piezoelectric vibrator (110) in which electrode layers (112, 113) are formed over top and bottom surfaces of a piezoelectric layer (111); a vibrating member (120) having at least atop surface to which the piezoelectric vibrator (110) is bonded; and a resin member (130) formed continuously in a circumferential direction over at least the outer side surface of the piezoelectric vibrator (110). Therefore, since it is possible to increase the working area of the piezoelectric vibrator, it is possible to realize both an increase in the sound pressure level of the output and miniaturization of the apparatus.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.