Patents by Inventor Kunitake Sato

Kunitake Sato 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).

  • Magnetic core having an effective magnetic bias and magnetic device using the magnetic core
    Patent number: 6545582
    Abstract: A magnetic core (10) is provided with a flange portion (12) protruding outward a winding core portion (11) in a radial direction perpendicular to a center axis (19) of the winding core portion. The winding core portion has an outer peripheral surface (11a) which surrounds the center axis to have a first distance (d1) therebetween. The flange portion is provided with a permanent magnet (15) apart from the center axis by a second distance (d2) greater than the first distance.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: April 8, 2003
    Assignee: NEC Tokin Corporation
    Inventor: Kunitake Sato
  • Magnetic core having an effective magnetic bias and magnetic device using the magnetic core
    Publication number: 20020030574
    Abstract: A magnetic core (10) is provided with a flange portion (12) protruding outward a winding core portion (11) in a radial direction perpendicular to a center axis (19) of the winding core portion. The winding core portion has an outer peripheral surface (11a) which surrounds the center axis to have a first distance (d1) therebetween. The flange portion is provided with a permanent magnet (15) apart from the center axis by a second distance (d2) greater than the first distance.
    Type: Application
    Filed: August 31, 2001
    Publication date: March 14, 2002
    Applicant: Tokin Corporation
    Inventor: Kunitake Sato