Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shoichi Nagao0
Date of Patent
April 12, 2011
0Patent Application Number
120392520
Date Filed
February 28, 2008
0Patent Primary Examiner
Patent abstract
A piezoelectric drive device has a piezoelectric actuator that has a vibrator with a piezoelectric element, and a rotor that is rotated by the vibrator, an elastic device that can store the rotational energy of the rotor as elastic energy, and a driven body that is rotated by the elastic energy stored by the elastic device.
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