发明名称 |
Magnetic head and producing method of the same. |
摘要 |
a magnetic head can be made by : a first step of butting projection end faces of a pair of magnetic cores each of which is previously machined into a convex shape, through a magnetic gap member; a second step of forming notches which reach a winding groove, at said butted projection end faces of said magnetic cores by an electric discharge machining process, thereby regulating a track width; and a third step of filling under heat treatment glass into grooves at two sides of said pair of convex magnetic cores and said notches . When the magnetic head is used, a magnetic recording/reproduction apparatus which is suitable for high density recording such as a digital VTR is provided. <IMAGE> <IMAGE> |
申请公布号 |
EP0646907(A3) |
申请公布日期 |
1996.10.09 |
申请号 |
EP19940115437 |
申请日期 |
1994.09.30 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
HONMA, YOSHIYASU;MASAKI, KEN;TAKAHASHI, KEN |
分类号 |
G11B5/008;G11B5/127;G11B5/187;G11B5/23;G11B5/53;(IPC1-7):G11B5/127 |
主分类号 |
G11B5/008 |
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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