发明名称 MAGNETIC RECORDING MEDIUM
摘要 PROBLEM TO BE SOLVED: To provide a magnetic recording medium suitable for high density recording. SOLUTION: The magnetic recording medium is provided with a first substrate layer 4 consisting essentially of Cr, a second substrate layer 5 consisting essentially of CrO and a magnetic layer 6 consisting essentially of a CoPt alloy and/or a CoPtCr alloy on a substrate 2. The first substrate layer 4, the second substrate layer 5 and the magnetic layer 6 are formed in this sequence from the substrate 2 side. Therefore the magnetic layer 6 exhibits high coercive force and also high S/N at the time of recording and reproducing. Accordingly, even when magnetic signals are recorded with high density, recording and reproducing can be executed stably and certainly.
申请公布号 JP2001067648(A) 申请公布日期 2001.03.16
申请号 JP19990246537 申请日期 1999.08.31
申请人 SONY CORP 发明人 HAGA SUSUMU;UCHIYAMA HIROSHI
分类号 G11B5/738;G11B5/64;G11B5/73;(IPC1-7):G11B5/738 主分类号 G11B5/738
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