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
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