<p>In an ultrasonic motor (1) using a friction member (4) having arrangements of reinforcing fibers (4a) between an driven member (3) to be driven and a vibrating stator (2) for generating travelling waves by the vibration of a piezoelectric element, the arrangements of the fibers (4a) are oriented in at least a predetermined direction (parallel and/or vertical) to the moving direction of the driven member (3).</p>
