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Title:
COMPOSITE MAGNETIC MATERIAL AND MAGNETIC ELEMENT
Document Type and Number:
WIPO Patent Application WO/2010/113681
Kind Code:
A1
Abstract:
Disclosed are: a composite magnetic material which has a good balance among electric characteristics, magnetic characteristics and chemical characteristics; and a magnetic element using the composite magnetic material. Specifically disclosed is a composite magnetic material which contains a magnetic powder and a binder. The magnetic powder contains, relative to the total weight of the magnetic powder material, not less than 0.25 wt% but not more than 3 wt% of Mn, not less than 1 wt% but not more than 7 wt% of Si and not less than 2 wt% but not more than 8 wt% of Cr, with the balance made up of Fe and unavoidable impurities. The magnetic powder is also characterized in that the ratio of powder particles having a length/breadth ratio of not less than 2 is 5% or less of the total powder particles.

Inventors:
NAKAMURA, Akihiko (Asahi Building 3-12-2, Nihonbashi, Chuo-k, Tokyo 89, 〒1038589, JP)
中村 昭彦 (〒89 東京都中央区日本橋三丁目12番2号 朝日ビルヂング スミダ電機株式会社内 Tokyo, 〒1038589, JP)
Application Number:
JP2010/054828
Publication Date:
October 07, 2010
Filing Date:
March 19, 2010
Export Citation:
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Assignee:
SUMIDA CORPORATION (Asahi Building, 3-12-2 Nihonbashi, Chuo-k, Tokyo 89, 〒1038589, JP)
スミダコーポレーション株式会社 (〒89 東京都中央区日本橋三丁目12番2号 朝日ビルヂング Tokyo, 〒1038589, JP)
NAKAMURA, Akihiko (Asahi Building 3-12-2, Nihonbashi, Chuo-k, Tokyo 89, 〒1038589, JP)
International Classes:
H01F1/14; B22F1/00; B22F3/00; C22C38/00; H01F1/20; H01F1/26
Foreign References:
JP2008255384A2008-10-23
JP2006261378A2006-09-28
JP2003160847A2003-06-06
Attorney, Agent or Firm:
SHIBATA, Fujiko et al. (TAF Kyobashi Bldg. 7th Floor, 19-4 Kyobashi 1-chome, Chuo-k, Tokyo 31, 〒1040031, JP)
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