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US 5,291,460 AGranted
Piezoelectric sounding body
AssigneeMurata Manufacturing Co., Ltd.
InventorsJun Harada, Manabu Sumita, Shunjiro Imagawa
Life of this patent
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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.
Claims11
A piezoelectric sounding body comprising:
- a piezoelectric substrate;
- an electrode film provided on a surface of said piezoelectric substrate;
- a vibrating plate provided on said electrode film;
- and
- an adhesion layer provided between said electrode film and said vibrating plate for allowing electrical conduction between said electrode film and said vibrating plate,
- said adhesion layer being formed of 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 means particle diameter.
3 more elements
Dependencies are inferred from the claim text.