Patents Assigned to Kabushiki Kaisha Fukoku
  • Vibrator system and vibrotherapeutic device using the same
    Patent number: 5050587
    Abstract: Disclosed is a novel vibrator system which comprises an ultrasonic motor; a driver circuit which supplies a forwardly-rotatory and reversely-rotatory signals to the ultrasonic motor; and a switching control circuit wich alternately switch the signals. The vibrator system attains a high energy efficiency even when miniaturized, as well as normally working without causing a large operation noise when loaded. The vibrotherapeutic device wherein the vibrator system is assembled can be advantageously used to massage human body.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: September 24, 1991
    Assignees: Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo, Kabushiki Kaisha Fukoku
    Inventors: Shinji Sagara, Youichi Endo