Patents by Inventor Isao Kagaya

Isao Kagaya has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Ultrasonic motor and method of adjusting the same
    Patent number: 4965482
    Abstract: An ultrasonic motor has a longitudinal-torsional composite transducer, a stator constituted by an ultrasonic vibrator sandwiching the transducer, and a rotor urged against the stator. The stator excites longitudinal-torsional ultrasonic vibrations to rotate the rotor by a frictional force. The motor includes a vibration adjusting rod for matching resonance frequencies of longitudinal and torsional ultrasonic vibrations of the stator with each other.
    Type: Grant
    Filed: June 14, 1989
    Date of Patent: October 23, 1990
    Assignee: NEC Corporation
    Inventors: Osamu Ohnishi, Sadayuki Takahashi, Osamu Myohga, Tadao Uchikawa, Takeshi Inoue, Isao Kagaya, Sadayuki Ueha