Patents by Inventor Yougo Imai

Yougo Imai 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 piezoelectric transducer and ultrasonic actuator
    Patent number: 5523643
    Abstract: An ultrasonic piezoelectric transducer and an ultrasonic actuator for performing enhanced elliptical vibration comprise a first laminated piezoelectric element having a first fixed end, a resonator mounted to the opposite end of the first laminated piezoelectric element, a second laminated piezoelectric element having one end thereof fixedly mounted to the resonator in a direction other than a vibrating direction of the first laminated piezoelectric element, and a load mass fixedly mounted to the opposite end of the second laminated piezoelectric element. This structure permits the enhanced elliptical vibration of the transducer to have a large, controllable amplitude.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 4, 1996
    Assignee: Olympus Optical Company Limited
    Inventors: Takanao Fujimura, Tomoki Funakubo, Yougo Imai, Toshiharu Tsubata, Yoshihisa Taniguchi, Takashi Ouchi, Hiroyuki Imabayashi, Yukihiko Sawada, Katsuhiro Wakabayashi
  • Tape recorder
    Patent number: 4511935
    Abstract: In the disclosed tape recorder, the erase head is supplied with DC erasing current during recording and is connectable with an AC erase unit which supplies AC erasing current instead of the DC erasing current to offer high-quality recording and replay.
    Type: Grant
    Filed: November 18, 1982
    Date of Patent: April 16, 1985
    Assignee: Olympus Optical Company Limited
    Inventors: Yougo Imai, Hideo Takenaga