发明名称 |
Perpendicular magnetic recording medium and magnetic recording apparatus |
摘要 |
A soft magnetic laminate layer is arranged between a nonmagnetic substrate and a perpendicular magnetic recording layer so as to provide a perpendicular magnetic recording medium low in noise and capable of a high density recording. The soft magnetic laminate layer comprises a soft magnetic layer having a thickness not larger than 500 Å and a nonmagnetic layer, comprises a first soft magnetic layer and a second soft magnetic layer differing from the first soft magnetic layer in the crystal structure, or comprises a layer of a granular structure consisting of magnetic particles and a nonmagnetic matrix and a soft magnetic layer.
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申请公布号 |
US2004058197(A1) |
申请公布日期 |
2004.03.25 |
申请号 |
US20030663914 |
申请日期 |
2003.09.17 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
NAKAMURA FUTOSHI;HIKOSAKA TAKASHI;OIKAWA SOICHI;OGIWARA HIDEO |
分类号 |
G11B5/00;G11B5/66;G11B5/667;(IPC1-7):G11B5/66 |
主分类号 |
G11B5/00 |
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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