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 |
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代理人 |
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主权项 |
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地址 |
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