Patents by Inventor Katutaro Kuge

Katutaro Kuge 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).

  • Controlling apparatus for asynchronous motors with wound rotor
    Patent number: 4074174
    Abstract: A super-synchronous Scherbius apparatus which enables wound rotor type induction motors to have a smooth speed control below and above the synchronous speed by controlling the secondary power in either the forward or backward direction through the connection of a cyclo-converter on its secondary side includes a first detecting circuit for detecting a signal corresponding to the primary voltage or the rotating magnetic field, a second detecting circuit for detecting a signal corresponding to the position of the rotor, and a calculating circuit for forming a signal corresponding to the phase of the secondary voltage in accordance with the signals of the first and second detecting circuits.
    Type: Grant
    Filed: January 28, 1976
    Date of Patent: February 14, 1978
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventor: Katutaro Kuge