Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electrostrictive – magnetostrictive – or piezoelectric
Reexamination Certificate
2004-12-20
2010-12-28
Kuntz, Curtis (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Electrostrictive, magnetostrictive, or piezoelectric
C381S173000, C310S322000, C310S334000
Reexamination Certificate
active
07860259
ABSTRACT:
A piezoelectric acoustic element1of the present invention comprising a hollow casing5having a opening3, a piezoelectric element7that is disposed in said casing5and bends when a voltage is applied thereto, and diaphragm8provided at the opening3of said casing5; wherein said piezoelectric element7and said diaphragm8are joined through a vibration transmitting member9.
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PCT International Preliminary Report on Patentability dated Nov. 29, 2006 and Translation of the Written Opinion of the related PCT patent application.
Onishi Yasuharu
Sasaki Yasuhiro
Toki Nozomi
Elbin Jesse A
Hayes & Soloway P.C.
Kuntz Curtis
NEC Corporation
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