发明名称 |
Magnetic recording system including magnetic recording medium having three-dimensional random orientation of axis of easy magnetization |
摘要 |
A magnetic recording system includes a magnetic recording medium including a magnetic layer, the magnetic layer being composed of magnetic grains, and a magnetic head including a recording unit and a reproducing unit. An orientation of an axis of easy magnetization of the magnetic grains is three-dimensionally distributed. An average angle between a direction of an axis of easy magnetization of each of the magnetic grains and a surface of the magnetic recording medium is within a range of 20° to 30°. A squareness ratio Mr/Ms of a remanent magnetization Mr of the magnetic recording medium to a saturation magnetization Ms of the magnetic recording medium is equal to 0.5 or more and is equal to 0.6 or less. A recording density of information which is recorded onto the magnetic recording medium is equal to 360 kfci or more.
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申请公布号 |
US6671116(B2) |
申请公布日期 |
2003.12.30 |
申请号 |
US20020044929 |
申请日期 |
2002.01.15 |
申请人 |
HITACHI, LTD. |
发明人 |
AKAGI FUMIKO;IGARASHI MASUKAZU;YOSHIDA KAZUETSU;ISHIKAWA AKIRA |
分类号 |
G11B5/66;G11B5/00;G11B5/012;G11B5/02;G11B5/455;G11B5/64;G11B5/65;(IPC1-7):G11B5/02 |
主分类号 |
G11B5/66 |
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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