发明名称 |
Perpendicular magnetic recording head and perpendicular magnetic recording/reproducing head having a magnetic shield layer with a thick edge portion |
摘要 |
A perpendicular magnetic recording head includes a first magnetic layer having a main magnetic pole exposed at a medium-facing surface that faces a recording medium; a second magnetic layer that faces the first magnetic layer with a nonmagnetic layer interposed therebetween; and a coil layer for applying a recording magnetic field to the first magnetic layer. The second magnetic layer includes a relatively thick edge portion, whereby the edge-write magnetic field is reduced and the external magnetic field resistance is increased.
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申请公布号 |
US7903371(B2) |
申请公布日期 |
2011.03.08 |
申请号 |
US20070780600 |
申请日期 |
2007.07.20 |
申请人 |
TDK CORPORATION |
发明人 |
TOMA YUSUKE;KAMEDA HIROSHI;KOBAYASHI KIYOSHI;TAKAHASHI TORU;MORITA SUMIHITO;WATANABE TOSHINORI |
分类号 |
G11B5/147;G11B5/39 |
主分类号 |
G11B5/147 |
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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