发明名称 Magnetic recording medium having linear or curved tracking servo patterns formed obliquely relative to direction of tracks, and magnetic recording apparatus using the same
摘要 A magnetic recording medium having magnetic patterns into which servo information are written and a magnetic recording layer into which data are written comprises a nonmagnetic substrate, a magnetic recording layer formed on the substrate, and a hard magnetic layer contacting the magnetic recording layer within servo signal recording regions on the substrate and constituting servo patterns of film thicknesses of which are varied in the track length direction. Thereby, more precise reading of the servo signals by the magnetic head is assured and a surface of the magnetic recording medium can be flattend.
申请公布号 US6324032(B1) 申请公布日期 2001.11.27
申请号 US19990307458 申请日期 1999.05.07
申请人 FUJITSU LIMITED 发明人 OHTSUKA YOSHINORI;MIZOSHITA YOSHIFUMI;KOSHIKAWA TAKAO;MAEDA HIROSHI
分类号 G11B5/596;G11B5/66;G11B5/82;G11B5/855;(IPC1-7):G11B5/74 主分类号 G11B5/596
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