| 发明名称 |
PRODUCTION OF MAGNETIC HEAD |
| 摘要 |
PURPOSE:To prevent the degradation in magnetic characteristics and obtain a magnetic head of high performances by removing the surface hardened layer by mechanical working of ferrite magnetic head cores by performing electrolytic etching treatment and chemical etching treatment. |
| 申请公布号 |
JPS5312610(A) |
申请公布日期 |
1978.02.04 |
| 申请号 |
JP19760087432 |
申请日期 |
1976.07.21 |
| 申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
HINO TETSUO;FUJIMURA KENICHI;KIKUCHI TATSUO;HIROHATA HEIGO |
| 分类号 |
G11B5/23;G11B5/133 |
主分类号 |
G11B5/23 |
| 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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