发明名称 Magnetic recording media, magnetic recording apparatus, and method for manufacturing magnetic recording media
摘要 A magnetic recording media includes a toroidal substrate, a surface thereof is divided into a recording area located in a central part between an outer peripheral edge and an inner peripheral edge, edge areas located within 100 mum or more and 2,000 mum or less from the outer and inner peripheral edges, respectively, and adjacent areas located between the edge areas and the recording area, respectively, a magnetic film on the substrate, and a protective film on the magnetic film, in which the magnetic film is thinner in the edge areas than that in the adjacent areas, and at least a part of the protective film in the edge areas is thicker than that in the adjacent areas.
申请公布号 US2007230055(A1) 申请公布日期 2007.10.04
申请号 US20070723977 申请日期 2007.03.22
申请人 KABUSHIKI KAISHA TOSHIBA 发明人 SHIROTORI SATOSHI;SAKURAI MASATOSHI;KIKITSU AKIRA;KAMATA YOSHIYUKI;KIMURA KAORI
分类号 G11B5/82 主分类号 G11B5/82
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