Title:
COMPOSITE MAGNETIC MATERIAL, COIL COMPONENT USING SAME, AND POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/019576
Kind Code:
A1
Abstract:
This composite magnetic material comprises: a plurality of soft-magnetic metal powder grains; a first oxide that covers a first surface of each of the plurality of soft-magnetic metal powder grains; and a second oxide that covers the surface of the first oxide and that is interposed between the plurality of soft-magnetic metal powder grains covered with the first oxide. The first oxide has first recesses in the surface thereof, and the second oxide is provided in the first recesses. With this structure, peeling between the first oxide and the second oxide can be suppressed, and thus, a composite magnetic material with a high mechanical strength can be achieved.
Inventors:
MATSUTANI NOBUYA
TAKAHASHI TAKESHI
KOTANI JUNICHI
TAKAHASHI TAKESHI
KOTANI JUNICHI
Application Number:
PCT/JP2014/003986
Publication Date:
February 12, 2015
Filing Date:
July 30, 2014
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01F1/24; B22F1/16; B22F3/00; H01F1/147; H01F1/33; H01F27/255; B22F1/08
Domestic Patent References:
| WO2005083725A1 | 2005-09-09 |
Foreign References:
| JPH06267723A | 1994-09-22 | |||
| JP2008205152A | 2008-09-04 | |||
| JPH05251224A | 1993-09-28 | |||
| JP2005243794A | 2005-09-08 | |||
| JP2006024869A | 2006-01-26 |
Attorney, Agent or Firm:
FUJII, Kentaro et al. (JP)
Fujii Kentaro (JP)
Fujii Kentaro (JP)
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