Title:
INDUCTOR
Document Type and Number:
Japanese Patent JP2002222721
Kind Code:
A
Abstract:
To provide an inductor which can be reduced in manufacturing cost and weight without decreasing a magnetic bias effect extremely by reducing comparatively expensive magnet materials.
A coil 12 is wound on the core sides of magnetic cores 11a and 11b with a magnetic gap, and furthermore a permanent magnet 13 is mounted inside the magnetic gap for the formation of an inductor. The permanent magnet 13 is hollow in cross section vertical to the center axis of a magnetic flux.
Inventors:
SATO MIZUHO
SATO KUNINAGA
SATO KUNINAGA
Application Number:
JP2001017924A
Publication Date:
August 09, 2002
Filing Date:
January 26, 2001
Export Citation:
Assignee:
NEC TOKIN CORP
International Classes:
B22F1/00; B22F1/02; B22F3/00; B22F3/02; B22F5/10; C22C19/00; C22C19/07; C22C33/02; H01F17/04; H01F21/08; H01F38/02; (IPC1-7): H01F38/02; B22F1/00; B22F1/02; B22F3/00; C22C19/00; C22C19/07; C22C33/02; H01F17/04; H01F21/08
Attorney, Agent or Firm:
Yosuke Goto (2 outside)