Method for increasing track density of magneto-optical storage m

Details Method for increasing track density of magneto-optical storage m Method for increasing track density of magneto-optical storage m

1989-06-29

1993-03-02

LaRoche, Eugene R.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

3692753, G11B 1100

Patent

active

051915634

ABSTRACT:
An optical data storage medium has, on one face, a recording track and a non-recording track for high-density magneto-optical recording. The media is manufactured by sputtering magnetic material onto a surface with alternating tracks of rough and smooth textures. Alternatively, the media may be manufactured by depositing a coating of hydrogenated carbon composition and exposing the coating to ion bombardment, or by sputtering or angular deposition of magnetic material onto a corrugated surface.

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