Method for producing magnetic recording medium

Details Method for producing magnetic recording medium Method for producing magnetic recording medium

1992-12-09

1994-06-21

Pianalto, Bernard

Coating processes

Direct application of electrical, magnetic, wave, or...

Pretreatment of substrate or post-treatment of coated substrate

427129, 427131, 427132, 427172, 427296, 427470, 427536, 427537, 427549, 427557, 427573, 427585, 427599, H01F 1002

Patent

active

053227166

ABSTRACT:
A method of producing a magnetic recording medium comprises the steps of heating in vacuum a magnetic recording medium produced by forming a ferromagnetic metal-film-type recording medium onto a non-magnetic substrate and of forming, immediately after heating, a protective layer on the magnetic recording medium by a plasma CVD method. A production apparatus for carrying out this method comprises a feeding apparatus for feeding a magnetic recording medium with a ferromagnetic thin film formed on a non-magnetic substrate, a plasma CVD apparatus, disposed in the path of this feeding apparatus, for forming a protective layer, and a heating apparatus disposed just before this plasma CVD apparatus in the feeding path.

REFERENCES:
patent: 4585537 (1986-04-01), Nakayama et al.
patent: 4833031 (1989-05-01), Kurokawa et al.
patent: 4835070 (1989-05-01), Kurokawa
patent: 5013583 (1991-05-01), Yamamura et al.

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