Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1986-05-23

1988-07-12

Thibodeau, Paul J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

427131, 428694, 428900, G11B 572

Patent

active

047569670

ABSTRACT:
A magnetic recording medium, comprising a non-magnetic substrate, a magnetic recording layer of a ferromagnetic film on the substrate, and a protective layer on the magnetic recording layer. The protective layer is formed of oxide of an alloy of Co and a metal selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Mo, Rh, Pd, and Si. The protective layer is preferably formed by deposition from vapor phase of the metal components constituting the alloy in an oxygen atmosphere under a reduced pressure. The protective layer provides for a durability and corrosion resistance to the magnetic recording medium.

REFERENCES:
patent: 4391874 (1983-07-01), Yamamoto et al.
patent: 4411963 (1983-10-01), Aine
patent: 4486498 (1984-12-01), Saito
patent: 4537832 (1985-08-01), Kohmoto et al.
patent: 4554217 (1985-11-01), Grimm et al.
patent: 4565734 (1986-01-01), Arai et al.
patent: 4582746 (1986-04-01), Shirahata et al.
patent: 4596735 (1986-06-01), Noguchi et al.
patent: 4599280 (1986-07-01), Izumi et al.

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