Magnetic recording medium and method of fabricating the same

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

1997-09-23

1999-11-02

Kiliman, Leszek

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 654, 428 655, 428 656, 428 642, 428 644, 428337, 428433, 428694R, 428694ST, 428694TR, 428694T, 428694SG, 428900, G11B 566

Patent

active

059766611

ABSTRACT:
A magnetic recording has very low warp characteristics but excellent film characteristics. Particularly, the recording medium has a high coercivity with a small range of coercivity distribution, with a warp characteristic below 3 .mu.m per radial inch. The medium is formed by heating a substrate at a high temperature with a temperature distribution on the substrate that is improved by the use of a heat distribution mask, which reduces the temperature distribution of the substrate to below .+-.3%.

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patent: 5277960 (1994-01-01), Tsuya et al.
patent: 5480695 (1996-01-01), Tenhover et al.
patent: 5496653 (1996-03-01), Saito et al.
patent: 5707706 (1998-01-01), Fukaya
ANELVA ILC-3100 Series (p. 1-4, 6-7), including information on ILC-3108RS Apr., 1993.

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