发明名称 |
Perpendicular magnetic recording head and perpendicular magnetic recording and reproducing system |
摘要 |
There is provided a perpendicular magnetic recording and reproducing system in which the overwrite erase ratio of a perpendicular magnetic head has been improved to prevent the deterioration of an overwrite property. In the perpendicular magnetic head, a third magnetic pole composed of a soft magnetic layer is formed on the leading side of a recording magnetic pole via a non-magnetic layer, thereby reducing magnetic interference from magnetization on a medium with the recording magnetic pole and preventing the deterioration of the overwrite property.
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申请公布号 |
US7145750(B2) |
申请公布日期 |
2006.12.05 |
申请号 |
US20030335884 |
申请日期 |
2003.01.03 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN, LTD. |
发明人 |
KIMURA HISASHI;NAKAMOTO KAZUHIRO;KAWATO YOSHIAKI;YOSHIDA NOBUO |
分类号 |
G11B5/127;G11B5/00;G11B5/09;G11B5/187;G11B5/31;G11B5/39 |
主分类号 |
G11B5/127 |
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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