Patent · US Active

Oscillation device

US9236042B2 · kind B2 · utility

0Cited by

0References

8Claims

0Family size

Assignee

NEC CORPORATION · JP

Inventors

Jun Kuroda · Tokyo, JP
Yasuharu Onishi · Yokohama, JP
Shigeo Satou · Yokohama, JP
Motoyoshi Komoda · Tokyo, JP

Key dates

Filing date	Dec 5, 2012
Grant date	Jan 12, 2016
Priority date	—
Expiry date	Jan 11, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2217/03
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A vibration member (140) has a sheet shape. A piezoelectric element (130) is attached to one surface of the vibration member (140). A support member (110) supports the edge of the vibration member (140). The support member (110) includes a first facing portion (112) and a second facing portion (114). The first facing portion (112) faces the surface of the vibration member (140) to which the piezoelectric element (130) is attached. The second facing portion (114) faces the surface of the vibration member (140) which is located on the opposite side to the piezoelectric element (130). A first spring (152) is provided between the first facing portion (112) and the vibration member (140) or the piezoelectric element (130). A second spring (154) is provided between the second facing portion (114) and the vibration member (140).

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