Patents by Inventor Takashi Nakanura

Takashi Nakanura 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).

  • Sewing machine motor control device
    Patent number: 4938160
    Abstract: An electric motor of a sewing machine may be stopped naturally at an objective position by amending the amount of the motor's running errors as overrun or underrun with respect to the stop objective position without employing an especially forceful stopping circuit in spite of dispersions in a load inertia caused by mass-production of sewing machines or variances in loads during driving of the sewing machine.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: July 3, 1990
    Assignee: Janome Sewing Machine Co. Ltd.
    Inventors: Takashi Nakanura, Akira Orii, Haruhiko Tanaka