发明名称 Magnetic recording medium
摘要 A magnetic recording medium having high reliability is provided, in which concave portions between recording elements formed as convex portions of a concavo-convex pattern are approximately completely filled with a non-magnetic material. The magnetic recording medium is a plate-like body including: a substrate; a recording layer that is formed in a predetermined concavo-convex pattern over the substrate and includes recording elements for recording information formed as convex portions of the concavo-convex pattern; and the non-magnetic material filling concave portions between the recording elements. Side faces of the recording elements are inclined to face a surface of the plate-like body on a side toward which the recording elements 16 project in the concavo-convex pattern. An inclination angle of the side faces of the recording elements with respect to a direction perpendicular to that surface is smaller than 90° and 5° or more.
申请公布号 US7482070(B2) 申请公布日期 2009.01.27
申请号 US20050115116 申请日期 2005.04.27
申请人 TDK CORPORATION 发明人 TAKAI MITSURU;SOENO YOSHIKAZU;TAGAMI KATSUMICHI;SHIMAKAWA KAZUYA
分类号 G11B5/65;G11B5/66;G11B5/82;G11B5/855;G11B7/24;G11B11/105 主分类号 G11B5/65
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