Patents by Inventor Kitajima KENJI

Kitajima KENJI 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).

  • SYNCHRONOUS MOTOR
    Publication number: 20120153763
    Abstract: A synchronous motor which causes decrease in iron loss without increase in copper loss due to increase in q-axis current, and increases efficiency. The synchronous motor includes a rotor, the number of magnetic poles of which is changeable. The magnetic poles of the rotor include permanent magnets and electromagnets having changeable polarity, and the number of the magnetic poles of the rotor is changed by changing a current flow direction of the electromagnets.
    Type: Application
    Filed: December 5, 2011
    Publication date: June 21, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Kitajima KENJI