发明名称 |
Simplified, shielded twin-track read/write head structure |
摘要 |
This invention is an improvement in the design of a twin-track read/write heads. The present design eliminates the reluctance gap between the U-shaped write drive coil structure and the U-shaped magnetic sensor and coupling leg structure in that patent. A new structure incorporating two separate coupling legs with a gap at the pole tip interface to the magnetic recording medium for reading and writing is utilized. The new design also incorporates a back gap to adjust the overall reluctance and proportional effect of flying height gap variations. In addition, magnetic shields are introduced to further reduce the effects of fringe field interference at the write head to media interface.
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申请公布号 |
US4698711(A) |
申请公布日期 |
1987.10.06 |
申请号 |
US19850782661 |
申请日期 |
1985.10.02 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
VINAL, ALBERT W. |
分类号 |
G11B5/31;G11B5/127;G11B5/39;(IPC1-7):G11B5/147 |
主分类号 |
G11B5/31 |
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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