发明名称 |
Main pole structure coupled with trailing gap for perpendicular recording |
摘要 |
A magnetic head with a narrow track width angle and of excellent mass productivity is provided for attaining a large capacity magnetic disk drive. In an embodiment, a perpendicular recording magnetic head includes: a first non-magnetic film and a first soft magnetic film stacked on the trailing side of a main magnetic pole piece for constituting a gap film; a second non-magnetic layer in contact with the end face of the first non-magnetic layer on both sides of the main magnetic pole piece; a third soft magnetic film in contact with the second non-magnetic layer on both sides of the main magnetic pole piece; and a second soft magnetic film in contact with the first soft magnetic film and the third soft magnetic film on the trailing side of the main magnetic pole.
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申请公布号 |
US7551395(B2) |
申请公布日期 |
2009.06.23 |
申请号 |
US20060492378 |
申请日期 |
2006.07.24 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. |
发明人 |
MARUYAMA YOJI;KUDO KAZUE;OHDAKE ICHIRO;IWAKURA TADAYUKI |
分类号 |
G11B5/127 |
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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