Patents by Inventor Takashi Take

Takashi Take 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).

  • Modulation control type of AC machine
    Patent number: 6320350
    Abstract: A modulation control type of AC motor includes a modulator and a modulation motor. The modulation motor has the structure in which a DC field power source of a two-phase synchronous motor is replaced by a load and a DC main magnetic flux is replaced by an alternate main magnetic flux. There is no interference between the frequency of an AC power source and the frequency of a modulation signal. Therefore, the synchronous torque and the rotation speed can be controlled separately and independently. The controllable range is wide.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: November 20, 2001
    Inventor: Takashi Take