发明名称 MAGNETIC RECORDING MEDIUM
摘要 <p>A magnetic recording medium having high running stability and good magnetic characteristics without causing any abrasion problem, which comprises a base film, a magnetic layer provided on one surface (i.e. the major surface) of the base film and a back coat layer provided on the other surface (i.e. the back surface) of the base film, the back coat layer comprising a binder and non-magnetic particles dispersed therein, characterized in that the non-magnetic particles comprise at least one soft inorganic pigment of less than 5 in Mohs' scale of hardness and at least one hard inorganic pigment of not less than 5 in Mohs' sacle of hardness and of not more than 0.2 mu m in average particle size in a weight ratio of 99 : 1 to 50 : 50.</p>
申请公布号 EP0105471(B1) 申请公布日期 1987.09.09
申请号 EP19830109714 申请日期 1983.09.28
申请人 HITACHI MAXELL LTD. 发明人 MATSUURA, TAKESHI;MORIOKA, AKIRA;TAKAHIRA, YOSHIYUKI
分类号 G11B5/708;(IPC1-7):G11B5/70 主分类号 G11B5/708
代理机构 代理人
主权项
地址