Patents by Inventor Hiroyuki Sohno

Hiroyuki Sohno 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).

  • Moving magnet-type actuator
    Patent number: 5434549
    Abstract: In a moving magnet type actuator, a magnet moving body including at least two permanent magnets of which same poles are confronting each other and an intermediate magnetic substance. The magnet moving body is movably arranged inside at least three coils. The at least three coils are connected so that current flows in different directions with a zone between the permanent magnets as a boundary. Whereby thrust and efficiency of the moving magnet type actuator is improved.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: July 18, 1995
    Assignee: TDK Corporation
    Inventors: Yasuyuki Hirabayashi, Takatoshi Oyama, Hiroyuki Sohno, Sigeo Saito