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US Patent 8270657 Earphone device and sound generating apparatus equipped with the same

Patent 8270657 was granted and assigned to Yamaha (yacht) on September, 2012 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Yamaha (yacht)

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

82706570

Patent Inventor Names

Tsuneyasu Demukai0

Yoshikatsu Matsubara0

Masayoshi Yamashita0

Nobushiro Aiba0

Souichi Takigawa0

Date of Patent

September 18, 2012

Patent Application Number

126440960

Date Filed

December 22, 2009

Patent Citations Received

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US Patent 12022258 Ear-wearable hearing device

Patent Primary Examiner

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Huyen D Le

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