发明名称 |
MAGNETIC HEAD AND MAGNETIC RECORDING AND REPRODUCING DEVICE |
摘要 |
PURPOSE: To improve the recording and reproducing characteristics of a diagonally anisotropic magnetic recording medium. CONSTITUTION: This ring type magnetic head of a metal-in-gap type constitutes a magnetic circuit having a gap by disposing a first magnetic core half body formed to deposit a soft magnetic metallic film on a ferromagnetic ferrite surface and a second magnetic core half body opposite to each other. The average film thickness of the soft magnetic metallic film 3a deposited on the gap forming surface of the first magnetic core half body is >=1.5μm and the average film thickness of the soft magnetic metallic film 3b deposited on the gap forming surface of the second magnetic core half body is made larger than twice the average film thickness of the soft magnetic metallic film deposited on the gap forming surface of the first magnetic core half body.
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申请公布号 |
JPH0869608(A) |
申请公布日期 |
1996.03.12 |
申请号 |
JP19940205132 |
申请日期 |
1994.08.30 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
ISHIDA TATSURO;SUGITA RYUJI;HASEGAWA HIROYUKI;ECHIGO NORIYASU |
分类号 |
G11B5/66;G11B5/02;G11B5/127;G11B5/147;G11B5/23;G11B5/64;(IPC1-7):G11B5/127 |
主分类号 |
G11B5/66 |
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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