发明名称 |
Magnetic recording medium |
摘要 |
<p>A magnetic recording medium comprising a flexible support, a lower non-magnetic layer comprising a non-magnetic powder and a binder formed on the flexible support, and an upper magnetic layer comprising a ferromagnetic powder and a binder formed on the lower non-magnetic layer, wherein the upper magnetic layer has a SFD value of 0.5 or less, the magnetic powder contained in the upper magnetic layer has an average major axis length of 80 nm or less, and a SFD value of the upper magnetic layer is 1.2 times or less the initial SFD value after the magnetic recording medium is stored at a temperature of 60 DEG C and a relative humidity of 90%RH for 90 days.</p> |
申请公布号 |
EP1391883(A1) |
申请公布日期 |
2004.02.25 |
申请号 |
EP20030018905 |
申请日期 |
2003.08.20 |
申请人 |
HITACHI MAXELL, LTD. |
发明人 |
INOUE, TESUTARO;YOSHIMURA, KEN;KURUSUMI, CHIKAKO |
分类号 |
G11B5/70;G11B5/714;(IPC1-7):G11B5/70 |
主分类号 |
G11B5/70 |
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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