Patents by Inventor Kosuke Sekiya

Kosuke Sekiya 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).

  • Automotive embedded permanent magnet rotary electric machine
    Patent number: 9172279
    Abstract: An automotive embedded permanent magnet rotary electric machine can suppress increases in torque ripples and cogging torque, reduce core loss near a stator, and increase magnetic torque and reluctance torque. In the automotive embedded permanent magnet rotary electric machine, a first permanent magnet and a second permanent magnet that constitute a magnetic pole are embedded so as to line up in a main direction of rotation of magnetic poles of a rotor core and are embedded so as to be radially outwardly convex in a region that extends from a leading end portion to a trailing end portion in the main direction of rotation of the magnetic poles, and the first permanent magnet is formed into an integrated body that extends from the leading end portion in the main direction of rotation of the magnetic poles beyond a pole center toward a trailing side.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: October 27, 2015
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kosuke Sekiya, Moriyuki Hazeyama, Takeshi Mori, Hideaki Arita, Haruyuki Kometani, Masaya Inoue
  • AUTOMOTIVE EMBEDDED PERMANENT MAGNET ROTARY ELECTRIC MACHINE
    Publication number: 20130307365
    Abstract: An automotive embedded permanent magnet rotary electric machine can suppress increases in torque ripples and cogging torque, reduce core loss near a stator, and increase magnetic torque and reluctance torque. In the automotive embedded permanent magnet rotary electric machine, a first permanent magnet and a second permanent magnet that constitute a magnetic pole are embedded so as to line up in a main direction of rotation of magnetic poles of a rotor core and are embedded so as to be radially outwardly convex in a region that extends from a leading end portion to a trailing end portion in the main direction of rotation of the magnetic poles, and the first permanent magnet is formed into an integrated body that extends from the leading end portion in the main direction of rotation of the magnetic poles beyond a pole center toward a trailing side.
    Type: Application
    Filed: February 2, 2012
    Publication date: November 21, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kosuke Sekiya, Moriyuki Hazeyama, Takeshi Mori, Hideaki Arita, Haruyuki Kometani, Masaya Inoue