Magnetic disc

Details Magnetic disc Magnetic disc

1990-09-20

1992-01-21

Thibodeau, Paul J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

427131, 428694, 428900, G11B 2300

Patent

active

050827286

ABSTRACT:
A magnetic disc with good abrasion resistance and improved durability, which comprises a non-magnetic substrate, a magnetic layer comprising a metal magnetic powder formed on one side of the substrate and a coating comprising an inorganic powder having a Mohs hardness of not less than 4 formed on the other, back side of the substrate, which has good abrasion resistance and improved durability.

REFERENCES:
patent: 4547419 (1985-10-01), Nishimatsu et al.
patent: 4639389 (1987-01-01), Nishimatsu et al.
patent: 4741954 (1988-05-01), Ide et al.
patent: 4788092 (1988-11-01), Chubachi et al.

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