Patents by Inventor Shunsuke Nakaura

Shunsuke Nakaura 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).

  • Torque detecting apparatus
    Patent number: 7370541
    Abstract: A torque detecting apparatus detects torque applied upon a torsion bar of an electric power steering apparatus, as two sensors, which have ratiometric characteristics and have the same characteristics, simultaneously detect the amount of torsion of the torsion bar. With a gain of one of the two sensors set to the positive polarity and a gain of the other sensor set to the negative polarity, a control circuit calculates the torque applied upon the torsion bar by multiplying a difference between detection outputs from the two sensors by a predetermined coefficient. A torque detecting apparatus which is capable of detecting the torsional angle of a rotation shaft, namely, torque applied upon the rotation shaft easily and accurately using two sensors is thus realized.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: May 13, 2008
    Assignee: JTEKT Corporation
    Inventors: Yoshitomo Tokumoto, Shunsuke Nakaura, Ken Fukuda
  • Torque detecting apparatus
    Publication number: 20060117870
    Abstract: A torque detecting apparatus detects torque applied upon a torsion bar of an electric power steering apparatus, as two sensors, which have ratiometric characteristics and have the same characteristics, simultaneously detect the amount of torsion of the torsion bar. With a gain of one of the two sensors set to the positive polarity and a gain of the other sensor set to the negative polarity, a control circuit calculates the torque applied upon the torsion bar by multiplying a difference between detection outputs from the two sensors by a predetermined coefficient. A torque detecting apparatus which is capable of detecting the torsional angle of a rotation shaft, namely, torque applied upon the rotation shaft easily and accurately using two sensors is thus realized.
    Type: Application
    Filed: December 1, 2005
    Publication date: June 8, 2006
    Inventors: Yoshitomo Tokumoto, Shunsuke Nakaura, Ken Fukuda
  • Magnetic core for a non-contact displacement sensor
    Patent number: 6538546
    Abstract: In a magnetic core for a non-contact displacement sensor comprising a detecting coil, a coil receiving member and a terminal, the coil receiving member is comprised of a green compact made of insulated soft magnetic powder and an insulating layer covering the green compact, and an organic resin is filled in a closed space of the coil receiving member.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: March 25, 2003
    Assignees: Tokyo Sintered Metal Company Limited, Koyo Seiko Co., Ltd.
    Inventors: Yoichi Serino, Masayuki Yamamoto, Masaki Sugiyama, Hideaki Tsuchiya, Masakazu Moriyama, Shunsuke Nakaura, Norio Nakatani, Takahiro Sanada, Hidenobu Nagano
  • Magnetic core for a non-contact displacement sensor
    Publication number: 20020021199
    Abstract: In a magnetic core for a non-contact displacement sensor comprising a detecting coil, a coil receiving member and a terminal, the coil receiving member is comprised of a green compact made of insulated soft magnetic powder and an insulating layer covering the green compact, and an organic resin is filled in a closed space of the coil receiving member.
    Type: Application
    Filed: June 29, 2001
    Publication date: February 21, 2002
    Inventors: Yoichi Serino, Masayuki Yamamoto, Masaki Sugiyama, Hideaki Tsuchiya, Masakazu Moriyama, Shunsuke Nakaura, Norio Nakatani, Takahiro Sanada, Hidenobu Nagaro
  • Torque detecting apparatus
    Patent number: 5497667
    Abstract: A torque detecting apparatus which includes two detection systems, each formed with a switching element, a sample hold circuit and an output circuit, to be alternately operated, thereby successively outputting, as a signal, torque detected by a torque detecting coil.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: March 12, 1996
    Assignee: Koyo Seiko Co., Ltd.
    Inventor: Shunsuke Nakaura