发明名称 |
Transducers for perpendicular recording with inductive cancellation at MR sensor |
摘要 |
Perpendicular recording and magnetoresistive sensing transducers are disclosed having additional coil windings carrying current in an opposite direction to windings encircled by a core. The magnetic influence of the recording transducer on the sense transducer is reduced or eliminated. The inductance of the coils used to drive the recording transducer is reduced, facilitating high-frequency operation. Moreover, the magnetic flux induced by the coils and transmitted by the recording pole tip is increased, improving recording capabilities.
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申请公布号 |
US6754049(B1) |
申请公布日期 |
2004.06.22 |
申请号 |
US20010978435 |
申请日期 |
2001.10.16 |
申请人 |
WESTERN DIGITAL (FREMONT), INC. |
发明人 |
SEAGLE DAVID J.;WANG YUGANG |
分类号 |
G11B5/127;(IPC1-7):G11B5/33 |
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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