US Patent 7944119 Vibratory actuator and drive unit including the same

Patent 7944119 was granted and assigned to Panasonic on May, 2011 by the United States Patent and Trademark Office.

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Patent Number

Patent Inventor Names

Eiichi Nagaoka0

Date of Patent

May 17, 2011

Patent Application Number

12668470

Date Filed

July 3, 2008

Patent Primary Examiner

Patent abstract

Damage of a piezoelectric element due to deformation of a piezoelectric element beyond an elastic limit is prevented.

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