Patents by Inventor Megumi KAWAMURA

Megumi KAWAMURA 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).

  • Patent number: 9806575
    Abstract: The present invention relates to a plurality windings of U phase corresponding to one magnetic pole including first and second windings wound in a short pitch winding manner. The winding starts of the first and second windings are shifted by at least one tooth. The windings are wound so that a winding angle occupied by the windings inter-slot angle from the winding start of the first winding to the winding end of the second winding corresponds to a pole angle. The windings in the V phase are disposed in the same relationship as in the U phase at the position delayed by an electric angle of 120 degrees with respect to the U phase, and those in the W phase are disposed at the position delayed by an additional 120 degrees. The outputs of the windings are then each rectified, subsequently joined together and used by adding currents.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: October 31, 2017
    Inventors: Hideo Kawamura, Megumi Kawamura
  • Publication number: 20160043601
    Abstract: The present invention relates to a plurality windings of U phase corresponding to one magnetic pole including first and second windings wound in a short pitch winding manner. The winding starts of the first and second windings are shifted by at least one tooth. The windings are wound so that a winding angle occupied by the windings inter-slot angle from the winding start of the first winding to the winding end of the second winding corresponds to a pole angle. The windings in the V phase are disposed in the same relationship as in the U phase at the position delayed by an electric angle of 120 degrees with respect to the U phase, and those in the W phase are disposed at the position delayed by an additional 120 degrees. The outputs of the windings are then each rectified, subsequently joined together and used by adding currents.
    Type: Application
    Filed: August 30, 2013
    Publication date: February 11, 2016
    Inventors: Hideo KAWAMURA, Megumi KAWAMURA