Perpendicular magnetic-recording medium

Details Perpendicular magnetic-recording medium Perpendicular magnetic-recording medium

1984-03-12

1986-12-16

O'Keefe, Veronica

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428680, 428900, 428928, 428611, 428615, 427131, 427132, 357 71, H01F 026

Patent

active

046296603

ABSTRACT:
A perpendicular magnetic-recording medium wherein an amorphous alloy layer of nickel and phosphorus is formed on a disc substrate; the surface of the alloy layer is smoothed with high precision; and a ferromagnetic Co-based perpendicular magnetic-recording layer is formed on the smoothed surface of the alloy layer.

REFERENCES:
patent: 4013534 (1977-03-01), Ishii et al.
patent: 4277809 (1981-07-01), Fisher et al.
K. Kobayashi et al., Proceedings of 1982 Sendai Symposium on Perpendicular Magnetic Recording, Mar. 11-12, 1982, 177-187
European Search Report of Application No. 84102804.6.

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