Magnetic recording medium and manufacturing method for the same

Details Magnetic recording medium and manufacturing method for the same Magnetic recording medium and manufacturing method for the same

1995-06-15

1997-02-18

Resan, Stevan A.

Stock material or miscellaneous articles

Structurally defined web or sheet

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

428 653, 428694SG, 360135, 427129, G11B 5704

Patent

active

056040148

ABSTRACT:
A magnetic recording medium including a nonmagnetic base plate with textured trenches formed thereon. The resulting textured nonmagnetic base plate includes a mean line depth Rv of no more than 500 .ANG. and a relative load length tp(90-99) of no more than 120 .ANG.. A method for manufacturing the magnetic recording medium is also disclosed. The resulting magnetic recording medium exhibits substantially fewer micro-scratches and a reduced error frequency, due, in part, to the textured trenches formed on the nonmagnetic base plate.

REFERENCES:
patent: 5119258 (1992-06-01), Tsai et al.
patent: 5202810 (1993-04-01), Nakamura et al.
patent: 5388020 (1995-02-01), Nakamura et al.

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