Magnetic recording medium having a carbon protective layer and m

Details Magnetic recording medium having a carbon protective layer and m Magnetic recording medium having a carbon protective layer and m

1996-11-06

1998-11-17

Resan, Stevan A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428408, 428694TC, 428900, 427130, 427131, 427523, 427577, 20419215, G11B 572

Patent

active

058373578

ABSTRACT:
A magnetic recording medium is provided that includes a non-magnetic base, a magnetic layer laminated on a non-magnetic base, a carbon protective layer containing hydrogen and laminated on the magnetic layer, and a lubrication layer formed by applying a liquid lubricant to the carbon protective layer. The carbon protective layer includes a surface layer containing nitrogen, and the composition ratios of nitrogen and hydrogen in the surface layer may be suitably controlled to optimum ranges.

REFERENCES:
patent: 5227211 (1993-07-01), Eltookhy et al.
patent: 5397644 (1995-03-01), Yamashita
patent: 5637393 (1997-06-01), Ueda et al.

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