Magnetic recording media

Details Magnetic recording media Magnetic recording media

1981-11-30

1983-05-24

Pianalto, Bernard D.

Stock material or miscellaneous articles

All metal or with adjacent metals

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

428628, 428639, 428637, 428928, B32B 1500

Patent

active

043850987

ABSTRACT:
A magnetic recording medium of the type in which a thin magnetic film mainly comprising Co; Co and Ni; Co and Cr; or Co, Ni and Cr is deposited on a nonmagnetic substrate; the thin magnetic film comprises a native oxidized surface adjacent to the film layer at the surface and a deep layer below it; and the average oxygen content in the surface layer is greater than that in the deep layer.

REFERENCES:
patent: 3342633 (1967-09-01), Bate et al.
patent: 4272563 (1981-06-01), Steck et al.

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