发明名称 |
Magnetic recording medium. |
摘要 |
<p>A magnetic recording medium is disclosed, which has excellent electro-magnetic conversion characteriastics and is improverd in drop-out. The magnetic recording medium comprises a non-magnetic support and a plurality of magnetic layers provided on the support, and the magnetic layer being provided farthest from said support among these magnetic layers comprises a magnetic powder and a carbon black in an amount of not more than 1 part per 100 parts by weight of said magnetic powder; and another magnetic layer comprising a magnetic powder has a thickness of not more than 2.5 mu m, and 900nm light-transmittance of said magnetic medium is not more than 0.1%.</p> |
申请公布号 |
EP0373563(A2) |
申请公布日期 |
1990.06.20 |
申请号 |
EP19890122845 |
申请日期 |
1989.12.11 |
申请人 |
KONICA CORPORATION |
发明人 |
KAWAHARA, SETSUKO;KOYAMA, NOBORU;NAKANO, YASUSHI;NAKAJIMA, NOBORU |
分类号 |
G11B5/708;G11B5/716 |
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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