Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1990-01-12

1991-09-24

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

427 48, 427131, 428323, 428336, 428694, 428900, G11B 2300

Patent

active

050512919

ABSTRACT:
A magnetic recording medium is disclosed. The medium comprises a non-magnetic support and, provided thereon in order, a first magnetic layer and a second magnetic layer each containing a magnetic material and a binder. Rmax, a maximum roughness, and Ra, a center line average roughness, of a surface of the support on the magnetic layer side, d.sub.1, a thickness of the first magnetic layer, and d.sub.2, a thickness of the second magnetic layer, have the following relation,

REFERENCES:
patent: 4865924 (1989-09-01), Saito et al.
patent: 4911951 (1990-03-01), Ogawa et al.

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