发明名称 MAGNETIC RECORDING MEDIUM
摘要 PURPOSE:To form a recording medium whose mechanical and magnetic characteristics are satisfactory, suppressing the generation of a spacing loss, by making the outermost magnetic layer sufficiently thick, in a magnetic recording medium having a magnetic layer of three-layer structure. CONSTITUTION:In a magnetic recording medium which is formed by laminating the first magnetic layer 12 containing gamma-Fe2O3, a magnetic layer 14 containing a VIII group metal (alloy), and the third magnetic layer 16, on the base film 10, thickness of the third magnetic layer 16 is made about 0.3-1mum, an uneven part which has been caused on the surface of the second magnetic layer 14 is smoothed almost completely, and it is made to function as a protective layer, as well.
申请公布号 JPS56134321(A) 申请公布日期 1981.10.21
申请号 JP19800035815 申请日期 1980.03.21
申请人 OLYMPUS OPTICAL CO 发明人 HANAOKA HISAHIRO
分类号 C09D5/23;C09D7/12;G11B5/64;G11B5/716;G11B5/72 主分类号 C09D5/23
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