Patents by Inventor Yoshinori Iwaki

Yoshinori Iwaki 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).

  • Rudder angle sensor
    Patent number: 7424858
    Abstract: There is provided a rudder angle sensor that is attached to a steering shaft for measuring an absolute angle of the steering shaft and includes: a coarse signal measuring mechanism and a fine signal measuring mechanism which measure a rotation angle of the steering shaft which rotates a predetermined number of times, the coarse signal measuring mechanism outputting a coarse signal and the fine signal measuring mechanism outputting a fine signal; and a calculating mechanism which calculates the absolute angle of the steering shaft based on coarse signal measurement data and fine signal measurement data converted from the coarse signal and the fine signal respectively, wherein the calculating mechanism is constituted by including an abnormal data detecting and eliminating unit which detects and eliminates abnormal data deviating from a predetermined range from the measurement data.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: September 16, 2008
    Assignee: Toyo Denso Kabushiki Kaisha
    Inventors: Masahiro Matsuda, Yoshinori Iwaki, Osamu Nakamura
  • RUDDER ANGLE SENSOR
    Publication number: 20080009993
    Abstract: There is provided a rudder angle sensor that is attached to a steering shaft for measuring an absolute angle of the steering shaft and includes: a coarse signal measuring mechanism and a fine signal measuring mechanism which measure a rotation angle of the steering shaft which rotates a predetermined number of times, the coarse signal measuring mechanism outputting a coarse signal and the fine signal measuring mechanism outputting a fine signal; and a calculating mechanism which calculates the absolute angle of the steering shaft based on coarse signal measurement data and fine signal measurement data converted from the coarse signal and the fine signal respectively, wherein the calculating mechanism is constituted by including an abnormal data detecting and eliminating unit which detects and eliminates abnormal data deviating from a predetermined range from the measurement data.
    Type: Application
    Filed: February 26, 2007
    Publication date: January 10, 2008
    Applicant: Toyo Denso Kabushiki Kaisha
    Inventors: Masahiro MATSUDA, Yoshinori Iwaki, Osamu Nakamura