Optical magnetic recording medium

Details Optical magnetic recording medium Optical magnetic recording medium

1987-08-17

1988-10-11

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428678, 428679, 428694, 428900, 428928, G11B 724

Patent

active

047770821

ABSTRACT:
In an optical recording medium comprising a substrate and a recording layer thin film comprised of a rare earth element and a transition metal, for example, TbFeCo on the substrate, a metal thin film layer having a high magnetic permeability, for example, Permalloy is formed on the recording layer. A transparent dielectric film layer may be formed between the substrate and the recording layer thin film.

REFERENCES:
patent: 3474428 (1969-10-01), Nelson et al.
patent: 3680065 (1972-07-01), Almasi et al.
patent: 4489139 (1984-12-01), Ohta et al.
patent: 4544443 (1985-10-01), Ohta et al.

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