发明名称 Perpendicular magnetic recording medium
摘要 A perpendicular magnetic recording medium without shift or loss of written signals even in a case of a high recording density in a rare earth-transition metal alloy amorphous film, and where productivity is excellent. The perpendicular magnetic recording medium includes a soft magnetic under layer, an intermediate layer, a magnetic recording layer including a rare earth-transition metal alloy amorphous film and at least one of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, B, Al, C and Si or a boride or carbide uniformly dispersed in the rare earth-transition metal alloy amorphous film, a protective layer, a liquid lubricant layer, and a nonmagnetic substrate. The soft magnetic under layer, the intermediate layer, the magnetic recording layer, and the protective layer are built up in a predetermined order on the nonmagnetic substrate.
申请公布号 US6787252(B2) 申请公布日期 2004.09.07
申请号 US20020227524 申请日期 2002.08.26
申请人 FUJI ELECTRIC CO., LTD. 发明人 SAKAI YASUSHI;WATANABE SADAYUKI
分类号 G11B5/64;G11B5/65;G11B5/667;G11B5/73;G11B5/738;H01F10/13;(IPC1-7):G11B5/66;G11B5/70 主分类号 G11B5/64
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