Minoru Okada

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Kunitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Piezoelectric revolving resonator and single-phase ultrasonic motor
- Patent number 5,008,581
- Issue date Apr 16, 1991
- Hitachi Maxell, Ltd.
- Akio Kumada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER