发明名称 Magnetic recording medium
摘要 A magnetic recording medium suitable for high density recording comprising a non-magnetic substrate and a magnetic layer which contains a non-magnetic binder and ferromagnetic powder dispersed therein formed on said substrate, the coercive force of the magnetic layer being from 1,400 to 2,000 oersteds, the residual magnetic flux density being at least 1,100 gausses and a thickness of the layer being at least 0.5 mu m, which effectively works when it is used together with a magnetic head, a part of which near a magnetic gap, made of a magnetic material having saturation magnetic flux density of at least 7,000 gausses and which has a magnetic gap length of 0.15 to 0.4 mu m.
申请公布号 US4895758(A) 申请公布日期 1990.01.23
申请号 US19850777017 申请日期 1985.09.17
申请人 HITACHI MAXELL, LTD. 发明人 SAKEMOTO, AKITO;FUJIWARA, HIDEO;MIZUSHIMA, KUNIO;MIYAKE, AKIRA
分类号 G11B5/012;G11B5/127;G11B5/70;G11B5/706;G11B5/714 主分类号 G11B5/012
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