Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
March 30, 2010
Patent Application Number
11716119
Date Filed
March 9, 2007
Patent Primary Examiner
Patent abstract
A speaker diaphragm includes a substrate and a surface material. The surface material is arranged on one side of the substrate, and includes a woven fabric of a polyethylene naphthalate fiber.
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