Magnetooptical recording medium having improved sensitivity

Details Magnetooptical recording medium having improved sensitivity Magnetooptical recording medium having improved sensitivity

1992-11-25

1994-08-23

Pascal, Robert J.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369288, 3692752, 360 59, G11B 1100

Patent

active

053413490

ABSTRACT:
A magneto-optical recording medium comprises, at least a transparent base plate, a dielectric layer formed on one major surface of the transparent base plate, and a recording magnetic layer formed over the dielectric layer. The dielectric layer may be a single-layer structure consisting of a dense dielectric film or may be a two-layer structure consisting of a porous dielectric film formed contiguously with the transparent base plate, and a dense dielectric film formed contiguously with the recording magnetic layer. The magneto-optical recording medium has high recording magnetic field sensitivity and excellent mechanical properties, and is capable of satisfactorily functioning for recording/reading operation on either a magnetic modulation recording system or an optical modulation recording system.

REFERENCES:
patent: 5132945 (1992-07-01), Osato et al.
patent: 5228024 (1993-07-01), Moon et al.
patent: 5232790 (1993-08-01), Arimune et al.

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