US Patent 7922385 Piezoelectric drive device and electronic device
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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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Patent Inventor Names
Shoichi Nagao0
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US Patent 07922385 Piezoelectric drive device and electronic device US Patent 7922385 Piezoelectric drive device and electronic device
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Patent Number
079223850
Patent Number
79223850
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Patent Jurisdiction
Patent Number
079223850
Date of Patent
April 12, 2011
0Patent Application Number
120392520
Date Filed
February 28, 2008
0Official Website
Patent Primary Examiner
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US Patent 07922385 Piezoelectric drive device and electronic device
Infobox
Is a
Patent jurisdiction
Patent number
07922385
Date of patent
April 12, 2011
Patent application number
12039252
Date Filed
February 28, 2008
Patent primary examiner
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