发明名称 Magnetic recording medium
摘要 <p>A magnetic recording medium of the present invention comprises a base film and a magnetic layer containing at least a hexagonal ferrite magnetic powder and a bonding agent; wherein the magnetic layer has a servo band, where a servo signal for performing tracking control of a magnetic head is written, and a data band where data is recorded; wherein the servo signal is written on the servo band magnetized in any one direction of longitudinal directions with being magnetized in a reverse direction for the any one direction; and wherein the hexagonal ferrite magnetic powder is 15 nm to 40 nm in an average plate diameter of a powder particle thereof, is 4 nm to 15 nm in an average plate thickness thereof, and is 140 kA/m to 320 kA/m in a coercivity Hc thereof.</p>
申请公布号 EP1494214(B1) 申请公布日期 2009.01.07
申请号 EP20040010085 申请日期 2004.04.28
申请人 FUJIFILM CORPORATION 发明人 ISHIGURO, TADASHI
分类号 G11B5/70;G11B5/596;G11B5/706;G11B5/714;G11B5/738;G11B5/78 主分类号 G11B5/70
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