Patents by Inventor Chikasa Uenosono

Chikasa Uenosono 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).

  • System for predicting desynchronization of a synchronous machine
    Patent number: 4376295
    Abstract: There is disclosed a system for predicting desynchronization of a synchronous machine by detecting a phenomenon of radical variation of the magnetic flux in the gap of a synchronous machine immediately before falling in an asynchronous state. For example, a functional value of the fundamental harmonic component and that of the higher harmonic component of the flux in the gap are detected for comparing the variation of each functional value with a predetermined reference level to predict desynchronization of the synchronous machine.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: March 8, 1983
    Assignees: Fuji Electric Co. Ltd., Yoshizo Obata
    Inventors: Chikasa Uenosono, Takao Okada, Junya Matsuki, Tadashi Naito, Shinichiro Inoue, Yoshizo Obata
  • System for predicting desynchronization of a synchronous machine
    Patent number: 4350947
    Abstract: Desynchronization of a synchronous machine is predicted by detecting a phenomenon of radical variation of the magnetic flux in the gap of a synchronous machine immediately before falling into an asynchronous state. For example, each functional value of the direct axis flux and the quadrature axis flux in the gap is detected for comparing the variation of each functional value with a predetermined reference level to predict desynchronization of the synchronous machine.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: September 21, 1982
    Assignees: Fuji Electric Co. Ltd., Masaki Takahashi
    Inventors: Chikasa Uenosono, Takao Okada, Junya Matsuki, Tadashi Naito, Shinichiro Inoue, Masaki Takahashi