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 (1 Toyota-cho, Toyota-sh, Aichi 71, 4718571, JP)
北野智靖 (〒71 愛知県豊田市トヨタ町１番地トヨタ自動車株式会社内 Aichi, 4718571, JP)
HOSHINA, Eisuke (1 Toyota-cho, Toyota-sh, Aichi 71, 4718571, JP)
北野智靖 (〒71 愛知県豊田市トヨタ町１番地トヨタ自動車株式会社内 Aichi, 4718571, JP)
HOSHINA, Eisuke (1 Toyota-cho, Toyota-sh, Aichi 71, 4718571, JP)
Application Number:
JP2007/075425
Publication Date:
July 17, 2008
Filing Date:
December 28, 2007
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho, Toyota-shi Aichi, 71, 4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 4718571, JP)
KITANO, Tomoyasu (1 Toyota-cho, Toyota-sh, Aichi 71, 4718571, JP)
北野智靖 (〒71 愛知県豊田市トヨタ町１番地トヨタ自動車株式会社内 Aichi, 4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 4718571, JP)
KITANO, Tomoyasu (1 Toyota-cho, Toyota-sh, Aichi 71, 4718571, JP)
北野智靖 (〒71 愛知県豊田市トヨタ町１番地トヨタ自動車株式会社内 Aichi, 4718571, JP)
International Classes:
B22F1/02; B22F1/00; B22F3/00; H01F1/26; H01F1/33; H01F27/24
Attorney, Agent or Firm:
HIRAKI, Yusuke et al. (Kamiya-cho MT Bldg. 19F, 3-20 Toranomon 4-chom, Minato-ku Tokyo 01, 1050001, JP)
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