| 摘要 |
<p>An ultrasonic motor having an ultrasonic rotor formed of a base resin of thermoplastic type, an electronic timepiece, and electronic equipment, the ultrasonic motor comprising the ultrasonic rotor coming into contact with an ultrasonic stator in pressurized state, wherein the ultrasonic rotor is formed of filler-contained resin; the electronic timepiece comprising the ultrasonic motor; the electronic equipment comprising the ultrasonic motor.</p> |
