Magnetic recording medium and method of producing the same

Details Magnetic recording medium and method of producing the same Magnetic recording medium and method of producing the same

1993-04-16

1995-09-19

Resan, Stevan A.

Coating processes

Magnetic base or coating

Magnetic coating

427128, 427131, 4273981, 427534, 427576, 427577, 428694TC, G11B 500

Patent

active

054514274

ABSTRACT:
With the use of a novel method in which after a magnetic recording medium carrying a ferromagnetic metal thin film is heated, a protective layer is developed on the ferromagnetic metal thin film by a known plasma CVD technique while an out gas from the magnetic recording medium being eliminated by absorption, another method in which a ferromagnetic metal thin film and a protective layer are formed in succession within a vacuum chamber, or a further method in which after a non-magnetic substrate is heated, a ferromagnetic metal thin film and a protective layer are formed in succession within a vacuum chamber while an out gas from the non-magnetic substrate and the ferromagnetic metal thin film being eliminated by absorption, the atomic ratio of the hydroxyl group to a primary component metal element contained in the ferromagnetic metal thin film can be decreased at the interface between the ferromagnetic metal thin film and the protective layer.

REFERENCES:
patent: 3213825 (1965-10-01), Cooper et al.
patent: 4624214 (1986-11-01), Suzuki et al.
patent: 4717622 (1988-01-01), Kurokawa et al.
patent: 4833031 (1989-05-01), Kurokawa et al.
patent: 5322716 (1994-06-01), Takahashi et al.

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