发明名称 Magnetic recording medium
摘要 Disclosed is a magnetic recording medium comprising a non-magnetic support, and a first magnetic layer, a second magnetic layer and a third magnetic layer laminated on a non-magnetic support surface in this order, a total layer thickness of the second magnetic layer and the third magnetic layer of 0.7 mu m or less, and a coercive force of a ferromagnetic powder contained in the third magnetic layer being 1.2 to 2.5 times as strong as a coercive force of a ferromagnetic powder contained in the first magnetic layer.
申请公布号 US5094904(A) 申请公布日期 1992.03.10
申请号 US19910673970 申请日期 1991.03.22
申请人 KONICA CORPORATION 发明人 KAWAKAMI, AKIRA;ANDO, YASUO;NISHIKAWA, TAKUO;REN, RIEKO;EDAMATSU, MIKI
分类号 C09D5/23;C09D7/12;G11B5/702;G11B5/716 主分类号 C09D5/23
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