发明名称 Magnetic recording medium
摘要 A magnetic recording medium employing the ferromagnetic film as the magnetic layer is disclosed in which the non-magnetic metal and/or the non-magnetic metal oxide are diffused into the ferromagnetic film along the direction of film thickness so that the concentration distribution will become substantially uniform. The magnetic recording medium has a high rectangular ratio and a low dispersion of the coercive force.
申请公布号 US4939046(A) 申请公布日期 1990.07.03
申请号 US19880167085 申请日期 1988.03.11
申请人 SONY CORPORATION 发明人 YAZAWA, KENJI
分类号 G11B5/66;G11B5/64;G11B5/65;G11B5/706;G11B5/708;G11B5/73;G11B5/738 主分类号 G11B5/66
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