Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 5, 2007
Patent Application Number
10238229
Date Filed
September 10, 2002
Patent Primary Examiner
Patent abstract
A piezo-electric speaker ensures a uniform sound in a broad band and can easily reproduce a signal of large amplitude or sound. A piezo-electric speaker has a piezo-electric member to generate a vibration according to an electric signal applied thereto. A piezo-electric vibration plate converts the vibration to a sound. The piezo-electric vibration plate is positioned closely to the piezo-electric member. The piezo-electric vibration plate is divided into parts of any configuration and is connected to the piezo-electric member.
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