发明名称 MAGNETIC RECORDING MEDIUM AND MANUFACTURING METHOD THEREOF
摘要 According to one embodiment, a magnetic recording medium includes a substrate, a soft magnetic layer, an underlayer, a magnetic recording layer, and a protective layer, wherein the magnetic recording layer is provided with a pattern including recording portions and non-recording portions, the non-recording portions have a composition that is equal to a composition obtained by demagnetizing the recording portions, the non-recording portions contain at least one metal element selected from the group consisting of vanadium and zirconium and at least one element selected from the group consisting of nitrogen, carbon, boron and oxygen, and the at least one element selected from the group consisting of nitrogen, carbon, boron and oxygen is contained in the non-recording portions at a higher content than the content of the at least one element selected from the group consisting of nitrogen, carbon, boron and oxygen in the recording portions.
申请公布号 US2013295299(A1) 申请公布日期 2013.11.07
申请号 US201313934164 申请日期 2013.07.02
申请人 KABUSHIKI KAISHA TOSHIBA 发明人 IWASAKI TAKESHI;KIMURA KAORI;KAMATA YOSHIYUKI;SAKURAI MASATOSHI
分类号 G11B5/84 主分类号 G11B5/84
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