发明名称 |
Perpendicular magnetic recording medium and magnetic storage apparatus |
摘要 |
An improved perpendicular magnetic recording medium and an improved magnetic storage apparatus are provided, which are suitable for high speed and high density magnetic recording. A magnetic under layer of a two-layered perpendicular magnetic recording medium includes three layers: a ferromagnetic layer; a non-magnetic layer; and a ferromagnetic layer, wherein the ferromagnetic layers are antiferromagnetically coupled with each other, thereby preventing a magnetic flux from a magnetic wall in a magnetic under layer from entering a read back head.
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申请公布号 |
US6926974(B2) |
申请公布日期 |
2005.08.09 |
申请号 |
US20010861568 |
申请日期 |
2001.05.22 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN, LTD. |
发明人 |
KAWATO YOSHIAKI;FUTAMOTO MASAAKI;NAKAMOTO KAZUHIRO |
分类号 |
G11B5/667;G11B5/64;G11B5/65;G11B5/66;G11B5/738;(IPC1-7):G11B5/66;G11B5/70 |
主分类号 |
G11B5/667 |
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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