发明名称 Magnetic recording medium and its method of manufacture
摘要 The present invention relates to a high-density magnetic recording medium for a recording/playback device (such as those used in computer disk units) and, more especially, a magnetic recording medium including a plurality of magnetic recording layers such that the upper layer is thinner and has a denser structure than the lower magnetic recording layer. The present magnetic recording medium consists of a non-magnetic plated substrate (12), a layer forming the non-magnetic sub-layer (13) laminated to the plated substrate, a plurality of magnetic alloy layers embracing the upper layer (16) laminated to the layer forming a sub-layer, a non-magnetic overlay layer (17) laminated to the upper layer, and a lubricating layer (18) formed on the non-magnetic overlay layer. <IMAGE>
申请公布号 FR2688920(A1) 申请公布日期 1993.09.24
申请号 FR19920011043 申请日期 1992.09.16
申请人 HITACHI LTD 发明人 NORIYOSHI GODA;SHINYA MATSUOKA;TATSUO KAWAIDE;TAKAAKI SHIRAKURA
分类号 G11B5/64;G11B5/65;G11B5/66;G11B5/85;(IPC1-7):G11B5/66 主分类号 G11B5/64
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