| 发明名称 |
PRODUCTION OF MAGNETIC HEAD |
| 摘要 |
PURPOSE:To perform etching according to work-hardening depth by dividing etching temperature in two steps of high temperature and low temperature in performing etching, in a head using polycrystalline ferrite. |
| 申请公布号 |
JPS5315119(A) |
申请公布日期 |
1978.02.10 |
| 申请号 |
JP19760089419 |
申请日期 |
1976.07.26 |
| 申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
KONDOU SHIGERU |
| 分类号 |
G11B5/127;G11B5/133;G11B5/23 |
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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