发明名称 Magnetic recording medium, magnetic recording and reproducing apparatus, and method for manufacturing magnetic recording medium
摘要 The magnetic recording medium includes a substrate and a recording layer formed in a predetermined concavo-convex pattern over the substrate, and the recording layer includes recording elements each formed as a convex portion of the recording layer. Surface steps are formed in an inner area including a radially innermost portion of a recording area. Each surface step is formed in such a manner that a portion over a concave portion between the recording elements is recessed toward a substrate to a level below a portion over the recording element. The surface steps are formed such that the recording area can be sectioned into an annular area adjoining the inner area and the inner area where height of the surface steps is larger than that in the annular area.
申请公布号 US2008170318(A1) 申请公布日期 2008.07.17
申请号 US20070004074 申请日期 2007.12.20
申请人 TDK CORPORATION 发明人 SUWA TAKAHIRO;SHIMAKAWA KAZUYA
分类号 G11B5/09 主分类号 G11B5/09
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