Patents Assigned to Kabushki Kaisha Tokai Rika Denki Seisakusho
  • Rotation detector operable to measure magnetism direction change
    Patent number: 6271663
    Abstract: A rotation detector that detects rotational position with high precision. The rotation detector includes a rotor having a shaft. Projections are located at predetermined intervals on the periphery of the rotor and extend in an axial direction. The rotation detector further includes magnets and magnetism detecting elements respectively detecting magnetism of the magnets. At least one of the magnets and the detecting elements are arranged between the projections and the shaft at predetermined intervals.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: August 7, 2001
    Assignee: Kabushki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Masakata Kanbe, Hitoshi Iwata, Katsuhiro Minami, Katsuya Kogiso, Takashi Suzuki, Masahiro Taniguchi