Patents by Inventor Tadahiko Goto

Tadahiko Goto 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).

  • Patent number: 4646184
    Abstract: There is provided a magnetic head used for both magnetic recording and reproduction thereof, comprising a magnetic head body with a gap portion, wherein a first material having a larger saturated magnetic flux density than that of said body is applied to one or both sides of said gap portion, said gap being internally provided with a second material having a smaller saturated magnetic flux density than said body.
    Type: Grant
    Filed: September 21, 1984
    Date of Patent: February 24, 1987
    Assignee: Ye Data Inc.
    Inventors: Tadahiko Goto, Hideo Abe
  • Patent number: 4492906
    Abstract: This invention discloses an electric motor comprising a stator, a rotor disposed concentrically within the stator, a drive shaft rotatably supporting the rotor with a circular gap between the stator and rotor and an output shaft connected to the drive shaft and sharing the same rotating axis with the drive shaft, wherein the improvement is characterized in that the electric motor further includes a resilient connecting member which connects the drive shaft and the output shaft and means which detects the torsion of the resilient connecting member produced during the transmission of the torque from the rotor to the output shaft and measures the transmission torque from the detected torsion.
    Type: Grant
    Filed: October 8, 1981
    Date of Patent: January 8, 1985
    Assignee: Yaskawa Electric Mfg. Co., Ltd.
    Inventors: Tadahiko Goto, Kiyoshi Oniki, Satoshi Murakami, Mitsunori Yokooji, Norio Andou, Norio Shimojyo
  • Patent number: 4432245
    Abstract: Torsion sensor for a grinding machine having a torsion bar with non-linear characteristics provided between the drive shaft of the grinding machine motor and the grinding wheel spindle, and detector means for detecting the twisting angle of the torsion bar.
    Type: Grant
    Filed: March 18, 1981
    Date of Patent: February 21, 1984
    Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Mitsuro Hattori, Koosuke Harad, Tadahiko Goto