Dynamic magnetic information storage or retrieval – Head – Core
Patent
1991-05-22
1992-10-20
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Head
Core
360119, 360122, G11B 5187, G11B 531
Patent
active
051575698
ABSTRACT:
A magnetic head having a pair of nonmagnetic core base bodies coupled to each other in such a manner that amorphous magnetic alloy films are applied to their abutment surfaces and a gap layer is interposed in a magnetic gap of the head, the films applied to the bodies being made abut against each other at their end edge surfaces each of which has a width larger than its film thickness, and at least one of the bodies having a coil winding groove formed at a portion at which the bodies are coupled to each other. Surface layer portions of each of the bodies, with which a magnetic tape comes into contact, are removed along a direction in which the magnetic tape moves, to a depth which is substantially the same as the depth of the gap while leaving a widthwise portion, which is the same as the track width defined by the width of contact between the two end edge surfaces of the films, at the widthwise center of the bodies, two recesses which are formed by removing the surface layer portions being filled with 2MgO--SiO.sub.2 or MgO--SiO.sub.2, and another amorphous magnetic alloy film is applied to the inner surface of the coil winding groove which defines a coil winding aperture and the latter film is integrally continued to the former films.
REFERENCES:
patent: 4656547 (1987-04-01), Kumasaka et al.
patent: 4819113 (1989-04-01), Kubota et al.
patent: 4866555 (1989-09-01), Inagoya et al.
patent: 4916563 (1990-04-01), Kawase
patent: 4969253 (1990-11-01), Ota et al.
patent: 4985796 (1991-01-01), Imara et al.
patent: 5031063 (1991-07-01), Hasegawa
Imai Sigeo
Inada Kenkichi
Kumasaka Noriyuki
Sasajima Souzou
Shinta Ikuo
Hitachi , Ltd.
Tupper Robert S.
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