Magnetic head with laminated structure

Details Magnetic head with laminated structure Magnetic head with laminated structure

1987-11-30

1989-06-27

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Core

360119, 360122, 360126, G11B 5187, G11B 531/5/127

Patent

active

048435074

ABSTRACT:
A magnetic head having layered structure for a recording medium for vertical magnetization contains a conductor body on a non-magnetic substrate for conducting the magnetic flux with two magnet legs, the end pieces of which form a thin main pole and a comparatively thicker auxiliary pole. The two magnetic poles are separated by an insulating gap layer of at least 5 .mu.m. This magnetic head and particularly its gap layer should be relatively simple to produce. Recesses are provided in the substrate to submerge at least the end piece of the auxiliary pole of one magnet leg and an adjoining part of this leg as well as at least part of the gap layer.

REFERENCES:
patent: 4287544 (1981-09-01), Lazzari
patent: 4740855 (1988-04-01), Diepers et al.
IEEE Transacations on Magnetics (a) vol. MAG-16, No. 1, Jan. 1980, pp. 71-76, (b) vol. MAG.varies.17, No. 6, Nov. 1981, pp. 3120-3122, (c) vol. MAG-20, No. 5, Sep. 1984, pp. 657-662 and 675-680.

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