发明名称 Magnetic recording medium and magnetic recording and reproducing apparatus
摘要 A magnetic recording medium is provided in which recording elements and concave portions have a clear difference in terms of magnetism at the boundaries therebetween, and which has favorable production efficiency. The magnetic recording medium includes a substrate; a recording layer formed in a predetermined concavo-convex pattern over the substrate, convex portions of the concavo-convex pattern serving as recording elements; and a filler portion filling a concave portion between the recording elements. A center part of a bottom surface of the concave portion protrudes from edge parts of the bottom surface of the concave portion in a direction away from the substrate.
申请公布号 US8298691(B2) 申请公布日期 2012.10.30
申请号 US20100659407 申请日期 2010.03.08
申请人 UCHIYAMA YOSHINORI;SUWA TAKAHIRO;FUKUZAWA NARUTOSHI;SHIMAKAWA KAZUYA;TDK CORPORATION 发明人 UCHIYAMA YOSHINORI;SUWA TAKAHIRO;FUKUZAWA NARUTOSHI;SHIMAKAWA KAZUYA
分类号 G11B5/66 主分类号 G11B5/66
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