Piezoelectric sounding body
US5291460A · kind A · utility
9Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1992 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Oct 15, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R17/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a piezoelectric sounding body comprising a piezoelectric substrate, an electrode film provided on its surface and a vibrating plate provided on the electrode film through an adhesion layer so as to conduct with the electrode film. The adhesion layer is prepared from an ultraviolet setting type anaerobic adhesive containing 0.1 to 1.0 percent by weight of carbon particles of 1.0 to 20.0 .mu.m in mean particle diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.