发明名称 |
Slanted pole head for magnetic recording |
摘要 |
A magnetic pole head for recording and playback is described. Its features, as illustrated in FIG. 1 are: a high permeability core 1, a magnetic field producing means 3, and an acute angle phi between the bottom surface and side surface at the trailing portion of the head (i.e. the portion which influences the recording medium 5 last). It has been found that this improved pole head significantly increases the derivative of vertical magnetic field intensity with respect to lateral distance. This increase in the rate at which vertical field intensity changes will allow for higher density perpendicular recording than is feasible with conventional vertical heads.
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申请公布号 |
US4700253(A) |
申请公布日期 |
1987.10.13 |
申请号 |
US19830554270 |
申请日期 |
1983.11.22 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
GERBER, JOEL A.;SIEVERS, JERRY A. |
分类号 |
G11B5/127;G11B5/187;(IPC1-7):G11B5/187 |
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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