Magneto-optical disc having a protective layer of cured radiatio

Details Magneto-optical disc having a protective layer of cured radiatio Magneto-optical disc having a protective layer of cured radiatio

1994-07-19

1996-12-03

Resan, Stevan A.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 655, 428323, 428332, 428336, 428408, 428694BP, 428694TP, 428694BC, 428694DE, 428694SG, 428900, 369 13, G11B 572

Patent

active

055806333

ABSTRACT:
A magneto-optical recording disc adapted for magneto-optical recording in the magnetic field modulation system by means of a magnetic head in continuous contact with the disc includes a recording layer on a substrate and a wear resistant resinous coating thereon. The coating is formed of a resin containing carbon particles having a mean particle size of 1 to 15 .mu.m. The magnetic head is in sliding contact with the surface of the coating during operation. The coating is effective for reducing friction with the magnetic head and retains such reduced friction over a long time.

REFERENCES:
patent: 4427738 (1984-01-01), Fujiyama et al.
patent: 4812358 (1989-03-01), Miyake et al.
patent: 5089317 (1992-02-01), Noguchi et al.

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