发明名称 Magnetic recording medium
摘要 A magnetic recording medium is provided that comprises a non-magnetic support and at least one magnetic layer above the support, the magnetic layer comprising a ferromagnetic powder dispersed in a binder, and the binder comprising a polyurethane resin having a weight-average molecular weight of 200,000 to 400,000. There is also provided a magnetic recording medium that comprises a non-magnetic support, a non-magnetic layer above the support, the non-magnetic layer comprising a non-magnetic powder dispersed in a binder, and at least one magnetic layer above the non-magnetic layer, the magnetic layer comprising a ferromagnetic powder dispersed in a binder and the binder of the magnetic layer and/or the non-magnetic layer comprising a polyurethane resin having a weight-average molecular weight of 200,000 to 400,000.
申请公布号 US7641991(B2) 申请公布日期 2010.01.05
申请号 US20060520621 申请日期 2006.09.14
申请人 FUJIFILM CORPORATION 发明人 MURAYAMA YUICHIRO;HASHIMOTO HIROSHI
分类号 G11B5/66 主分类号 G11B5/66
代理机构 代理人
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