Metal-in-gap head with double metal layer

Details Metal-in-gap head with double metal layer Metal-in-gap head with double metal layer

1991-04-17

1993-02-02

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360126, G11B 5235

Patent

active

051842661

ABSTRACT:
In a magnetic head of the metal-in-gap type, a magnetic metal layer provided in a magnetic gap comprises a plurality of thin film layers. Of the thin film layers, one which is located on the side of the magnetic gap is formed by use of a material having a comparatively higher saturation magnetic flux density whereas one which is located on the side of facing the magnetic core is formed by use of a material having a comparatively lower saturation magnetic flux density. Magnetic recording efficiency can be thereby enhanced, without a considerable increase in the thickness of the magnetic metal layer provided in the magnetic gap.

REFERENCES:
patent: 4742412 (1988-05-01), Kuriyama
patent: 4780779 (1988-10-01), Pisharody et al.
patent: 5038242 (1991-08-01), Fukushima et al.

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