Patents by Inventor Shigun Oh

Shigun Oh 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).

  • Method for manufacturing bonded magnet and method for manufacturing magnetic device having bonded magnet
    Patent number: 7531050
    Abstract: A viscous material (4) is obtained by mixing an alloy magnetic powder, magnetized in advance, with a resin. The viscous material (4) thus obtained is applied to an upper surface of a center magnetic leg of an E-shaped core (2). A coil (3) and an I-shaped core are coupled to the E-shaped core (2). An orientation magnetic field is applied by a permanent magnet (5) while the resin is hardened. As a consequence, a bond magnet is obtained which is formed in tight contact with both of a pair of surfaces defining a magnetic gap between the E-shaped core (2) and the I-shaped core.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: May 12, 2009
    Assignee: Nec Tokin Corporation
    Inventors: Shigun Oh, Teruhiko Fujiwara, Yasubumi Kikuchi, Takashi Yambe
  • Method for manufacturing bonded magnet and method for manufacturing magnetic device having bonded magnet
    Publication number: 20060280921
    Abstract: A viscous material (4) is obtained by mixing an alloy magnetic powder, magnetized in advance, with a resin. The viscous material (4) thus obtained is applied to an upper surface of a center magnetic leg of an E-shaped core (2). A coil (3) and an I-shaped core are coupled to the E-shaped core (2). An orientation magnetic field is applied by a permanent magnet (5) while the resin is hardened. As a consequence, a bond magnet is obtained which is formed in tight contact with both of a pair of surfaces defining a magnetic gap between the E-shaped core (2) and the I-shaped core.
    Type: Application
    Filed: September 19, 2003
    Publication date: December 14, 2006
    Inventors: Shigun Oh, Teruhiko Fujiwara, Yasubumi Kikuchi, Takashi Yambe