Magnetic recording medium and magnetic recording method

Details Magnetic recording medium and magnetic recording method Magnetic recording medium and magnetic recording method

1993-11-12

1996-04-23

Kiliman, Leszek

Stock material or miscellaneous articles

Structurally defined web or sheet

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

428332, 428337, 428480, 4284735, 4284744, 428684B, 428684BM, 428684ST, 428684SL, 428684SG, 428900, 360128, 36013021, 36013022, 36013024, G11B 566, G11B 1560, B32B 310, B32B 516

Patent

active

055101682

ABSTRACT:
A magnetic recording medium comprises a support and provided thereon, a magnetic recording component layer which comprises an uppermost layer containing a ferromagnetic metal powder and a binder, a thickness of said magnetic recording component layer being from 0.2 to 3.0 .mu.m, a thickness of the support being from 3.5 to 10.5 .mu.m, an average center line roughness of the surface of the support on said magnetic recording component layer side being not more than 10 nm, and an average center line roughness of the surface of said uppermost magnetic layer being not more than 4 nm, wherein E.sub.T (in terms of kg/mm.sup.2), Young's modulus in the transverse direction of the support and t.sub.s (in terms of mm), a thickness of the support satisfy the following inequality:

REFERENCES:
patent: 4614687 (1986-09-01), Nishimatsu
patent: 4710421 (1987-12-01), Ono
patent: 4720412 (1988-01-01), Katoh
patent: 4780353 (1988-10-01), Takahashi
patent: 4804736 (1989-02-01), Utsumi
patent: 5051282 (1991-09-01), Katoh
patent: 5196265 (1993-03-01), Ryoke
patent: 5316823 (1994-05-01), Etchu et al.

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