Method of making a magnetic recording medium

Details Method of making a magnetic recording medium Method of making a magnetic recording medium

1989-05-16

1991-03-19

Pianalto, Bernard

Coating processes

Magnetic base or coating

Magnetic coating

427251, 4272553, H01F 1002

Patent

active

050009842

ABSTRACT:
A magnetic recording medium comprising a substrate and, as a recording layer, a ferromagnetic metal thin layer formed on the substrate by deposition, in which the ferromagnetic metal thin layer contains oxygen atom in such a manner that concentrations of oxygen atom in a surface layer and an interfacial layer adjacent to the substrate are higher than that in an intermediate layer between the surface and interfacial layers, which has an improved coercive force and smaller magnetic domain.

REFERENCES:
patent: 4450186 (1984-05-01), Shinohara
patent: 4477489 (1984-10-01), Yanai et al.
patent: 4511635 (1985-04-01), Nagao et al.

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