Title:
PROCESS FOR PRODUCING COMPOSITE MAGNETIC MATERIAL, DUST CORE FORMED FROM SAME, AND PROCESS FOR PRODUCING DUST CORE
Document Type and Number:
WIPO Patent Application WO/2010/082486
Kind Code:
A1
Abstract:
A process for producing a composite magnetic material highly suitable for the production of magnetic elements, e.g., choke coils, that have a reduced size and are usable at a high current, the composite magnetic material having magnetic properties that render the material usable in the high-frequency range; a dust core formed from the composite magnetic material; and a process for producing the dust core. The dust core comprises metallic magnetic particles and an insulating material, the metallic magnetic particles having a Vicker's hardness (Hv) in the range of 230≤Hv≤1,000 and the insulating material having a compressive strength of 10,000 kg/cm2 or lower and being in a mechanically crushed state. The dust core has been configured so that the insulating material in a mechanically crushed state is interposed among the metallic magnetic particles.
Inventors:
WAKABAYASHI YUYA
TAKAHASHI TAKESHI
MATSUTANI NOBUYA
TAKAHASHI TAKESHI
MATSUTANI NOBUYA
Application Number:
PCT/JP2010/000151
Publication Date:
July 22, 2010
Filing Date:
January 14, 2010
Export Citation:
Assignee:
PANASONIC CORP (JP)
WAKABAYASHI YUYA
TAKAHASHI TAKESHI
MATSUTANI NOBUYA
WAKABAYASHI YUYA
TAKAHASHI TAKESHI
MATSUTANI NOBUYA
International Classes:
H01F1/24; B22F1/00; B22F3/00; B22F3/24; C21D6/00; C22C19/03; C22C38/00; H01F41/02
Foreign References:
| JPH11260618A | 1999-09-24 | |||
| JP2002305108A | 2002-10-18 | |||
| JPH11238613A | 1999-08-31 | |||
| JPS63113808A | 1988-05-18 |
Attorney, Agent or Firm:
NAITO, Hiroki et al. (JP)
Hiroki Naito (JP)
Hiroki Naito (JP)
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