Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1994-08-04
1996-03-19
Dougherty, Thomas M.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
318116, H02N 200
Patent
active
055005659
ABSTRACT:
A drive circuit for an ultrasonic motor comprising:
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patent: 5165047 (1992-11-01), Shimizu
patent: 5214339 (1993-05-01), Naito
Dougherty Thomas M.
Olympus Optical Co,. Ltd.
Weinstein Louis
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