Magnetic head

Details Magnetic head Magnetic head

1984-07-16

1987-02-03

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360122, G11B 512, G11B 522

Patent

active

046412131

ABSTRACT:
A cobalt-base ternary alloy containing small amounts of hafnium and tantalum formed by sputtering, vapor deposition, etc., is used as the principal magnetic pole of a magnetic head for perpendicular magnetic recording, the core thin layers of a thin layer magnetic recording head, or the magnetic shield thin layers of a thin layer magnetic reproducing head. The ternary amorphous alloy has a high permeability and a high saturation magnetic flux density and hence the thickness of the foregoing layers composed of the alloy can be reduced as thin as possible.

REFERENCES:
patent: 3656229 (1972-04-01), Sakurai et al.
patent: 4265684 (1981-05-01), Boll
patent: 4317148 (1982-02-01), Chi
patent: 4488195 (1984-12-01), Yanagiuchi et al.

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