Patents by Inventor Naohiko Sudo

Naohiko Sudo 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).

  • Apparatus for detecting ultrasonic vibration
    Patent number: 4579000
    Abstract: This invention is an apparatus for detecting the vibration of a Langevin type electrostrictive ultrasonic vibrator comprising a system made up of an iron core, a coil and a magnet surrounding but not connected to a magnetic projection attached to the rear end of the vibrator. The vibration of the magnetic projection is detected by the system surrounding it and the resulting induced voltage is fed back to a control to maintain the vibration at the desired resonant frequency.
    Type: Grant
    Filed: June 21, 1984
    Date of Patent: April 1, 1986
    Assignee: Sonotec Co., Ltd.
    Inventor: Naohiko Sudo