Patents by Inventor Hiroe Fukuzumi

Hiroe Fukuzumi 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).

  • Permanent magnet type electric rotating machine having main magnets and auxiliary magnets, and manufacturing method thereof
    Patent number: 9893571
    Abstract: In a permanent magnet type electric rotating machine, a rotor is arranged in a Halbach array, a main magnet magnetized in the radial direction is formed of a rare-earth magnet and an auxiliary magnet magnetized in the circumferential direction is formed of a ferrite magnet, and a gap is provided between the main magnet and the auxiliary magnet; as a result, the quantity of utilized rare-earth magnets is reduced without the output torque of the electric rotating machine being decreased.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: February 13, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Taizo Iwami, Sachiko Kawasaki, Hiroe Fukuzumi, Yoshinori Miyamoto
  • PERMANENT MAGNET TYPE ELECTRIC ROTATING MACHINE AND MANUFACTURING METHOD THEREOF
    Publication number: 20140084731
    Abstract: In a permanent magnet type electric rotating machine, a rotor is arranged in a Halbach array, a main magnet magnetized in the radial direction is formed of a rare-earth magnet and an auxiliary magnet magnetized in the circumferential direction is formed of a ferrite magnet, and a gap is provided between the main magnet and the auxiliary magnet; as a result, the quantity of utilized rare-earth magnets is reduced without the output torque of the electric rotating machine being decreased.
    Type: Application
    Filed: July 8, 2011
    Publication date: March 27, 2014
    Applicant: Mitsubishi Electric Corporation
    Inventors: Taizo Iwami, Sachiko Kawasaki, Hiroe Fukuzumi, Yoshinori Miyamoto