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专利名称：Magnetic powder, method for producing the
same and magnetic recording mediumcomprising the same
发明人：Nikio Kishimoto,Yuji Sasaki,Shinichi
Kitahata,Yumiko Kitahata,Hideaki Watanabe
申请号：US11222785申请日：20050912
公开号：US200600085A1公开日：20060112
专利附图：
摘要：A magnetic powder consisting of substantially spherical or ellipsoidal particles
comprising a transition metal which comprises iron and a rear earth element which ismainly present in the outer layer of the magnetic powder particles, and having a particlesize of 5 to 200 nm, a coercive force of 80 to 400 kA/m and a saturation magnetization of10 to 25 μWb/g.
申请人：Nikio Kishimoto,Yuji Sasaki,Shinichi Kitahata,Yumiko Kitahata,Hideaki Watanabe
地址：Moriya-shi JP,Otokuni-gun JP,Moriya-shi JP,Moriya-shi JP,Otokuni-gun JP
国籍：JP,JP,JP,JP,JP
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