US Patent 7510627 Acoustic paper diaphragm and acoustic transducer apparatus

Patent 7510627 was granted and assigned to Sony on March, 2009 by the United States Patent and Trademark Office.

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Current Assignee

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Patent Number

Patent Inventor Names

Masaru Uryu0

Kunihiko Tokura0

Date of Patent

March 31, 2009

Patent Application Number

110816260

Date Filed

March 17, 2005

Patent Primary Examiner

Patent abstract

An acoustic paper diaphragm excellent in moisture resistance and acoustic characteristics and not impairing the biodegradability is provided.

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