发明名称 |
Thin film magnetic head for use in vertical magnetic recording |
摘要 |
A thin film magnetic head for use in the vertical magnetic recording having a main magnetic pole for carrying out recording and reproduction on and from a recording medium, and an auxiliary magnetic pole for cooperating with the main magnetic pole to form a closed magnetic circuit wherein the dimension of the auxiliary magnetic pole is made larger than that of the main magnetic pole at its end facing the recording medium and in their tracking direction to enhance reproduction efficiency.
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申请公布号 |
US4807076(A) |
申请公布日期 |
1989.02.21 |
申请号 |
US19870024352 |
申请日期 |
1987.03.10 |
申请人 |
ALPS ELECTRIC CO., LTD. |
发明人 |
NAKASHIMA, KEISHI;ISHIBASHI, NAOHIRO |
分类号 |
G11B5/127;G11B5/31;(IPC1-7):G11B5/147 |
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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