Magnetic head and producing method of the same

Details Magnetic head and producing method of the same Magnetic head and producing method of the same

1997-07-16

1999-05-18

Klimowicz, William J.

Dynamic magnetic information storage or retrieval

Head

Gap spacer

360126, G11B5/23;5/127

Patent

active

059056126

ABSTRACT:
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 the butted projection end faces of the 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 the pair of convex magnetic cores and the 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.

REFERENCES:
patent: 3668775 (1972-06-01), Morita et al.
patent: 4110902 (1978-09-01), Tamura et al.
patent: 4425701 (1984-01-01), Takahashi et al.
patent: 5099376 (1992-03-01), Ino et al.
patent: 5170301 (1992-12-01), Muraoka et al.
patent: 5208965 (1993-05-01), Ozeki et al.
patent: 5210668 (1993-05-01), Sillen et al.
Abstract for 58097124 dated Jun. 9, 1983.

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