Title:
MAGNETIC POWDER, DUST CORE, MOTOR AND REACTOR
Document Type and Number:
WIPO Patent Application WO/2008/084756
Kind Code:
A1
Abstract:
Disclosed is a magnetic powder for dust cores, which is excellent in insulation
without decreasing magnetic flux density. Also disclosed are a dust core composed
of such a magnetic powder, and a motor or reactor whose core is composed of such
a dust core. Specifically disclosed is a magnetic powder (10) for dust cores,
wherein a relatively hard oxide fine powder (2) is dispersed over and fixed to
the surface of a soft magnetic metal powder (1), and a relatively soft insulating
coating (3) is fixed to both the oxide fine powder (2) and a part of the surface of
the soft magnetic metal powder (1) where no oxide fine powder (2) is adhered.
Inventors:
KITANO TOMOYASU (JP)
HOSHINA EISUKE (JP)
ICHIGOZAKI DAISUKE (JP)
HOSHINA EISUKE (JP)
ICHIGOZAKI DAISUKE (JP)
Application Number:
PCT/JP2007/075425
Publication Date:
July 17, 2008
Filing Date:
December 28, 2007
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
KITANO TOMOYASU (JP)
HOSHINA EISUKE (JP)
ICHIGOZAKI DAISUKE (JP)
KITANO TOMOYASU (JP)
HOSHINA EISUKE (JP)
ICHIGOZAKI DAISUKE (JP)
International Classes:
B22F1/102; B22F1/16; B22F3/00; H01F1/26; H01F1/33; H01F27/24
Foreign References:
| JPS63244706A | 1988-10-12 | |||
| JPS55130103A | 1980-10-08 |
Attorney, Agent or Firm:
HIRAKI, Yusuke et al. (3-20 Toranomon 4-chom, Minato-ku Tokyo 01, JP)
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