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Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hugo Michiels0
Date of Patent
September 29, 2009
Patent Application Number
10685576
Date Filed
October 16, 2003
Patent Primary Examiner
Patent abstract
Improved transducer for reproducing and/or recording sound, comprising a membrane onto which is provided a one-piece or multipart piezo-electric element, characterized in that the membrane is composed of two or several layers of which at least one layer is made of polymer, and the shape of the perimeter of the piezo-electric element differs from the shape of the perimeter of the membrane.
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