发明名称 |
Magnetic recording medium comprising a magnetic layer exhibiting low DeltaM value |
摘要 |
A magnetic recording medium comprises a non-magnetic layer containing a non-magnetic powder abd a binder provided on a support, and a magnetic layer containing a ferromagnetic powder and a binder provided on the non-magnetic layer, wherein the magnetic layer contains a hexagonal ferrite magnetic powder having an average tabular diameter of 10 to 28 nm and has a coercive force (Hc) of 135 to 400 kA/m, a ratio (Hc/Hk) of the Hc to an anisotropic magnetic field (Hk) of 0.3 to 0.6, and a maximum value of DeltaM of 0 to 0.10.
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申请公布号 |
US6727009(B2) |
申请公布日期 |
2004.04.27 |
申请号 |
US20010940527 |
申请日期 |
2001.08.29 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
MASAKI KOUICHI;SUZUKI TOSHIYUKI |
分类号 |
G11B5/70;G11B5/008;G11B5/706;(IPC1-7):B32B5/16 |
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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