Patents by Inventor Takeshi Toriumi

Takeshi Toriumi 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).

  • Pinch roller mechanism
    Patent number: 4294390
    Abstract: A pinch roller of a portable video tape recorder is urged against a capstan shaft by a rotatable arm rotated by an eccentric cam. The arm is provided with a pin spring biased against side surface of the eccentric cam. After a portion of side surface of the eccentric cam most remote from an axis of rotation of the cam has passed by the pin, the rotation of the eccentric cap is stopped thereby to prevent the pinch roller from disengaging the capstan shaft.
    Type: Grant
    Filed: October 16, 1979
    Date of Patent: October 13, 1981
    Assignee: Hitachi Denshi Kabushiki Kaisha
    Inventors: Takeshi Toriumi, Tamotsu Tominaga