Magnetic recording coating

Details Magnetic recording coating Magnetic recording coating

1975-10-08

1976-06-15

Pianalto, Bernard D.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

252 6254, 427127, H01F 1002

Patent

active

RE0288667

ABSTRACT:
A magnetic recording medium, such as a magnetic recording disk, having a magnetic recording layer that contains ferromagnetic and nonferromagnetic particles dispersed in a binder. The nonferromagnetic particles are disposed in the binder to be substantially equal to the thickness of the coated layer, and are of a material having a greater hardness than that of the binder.

REFERENCES:
patent: 2594893 (1952-04-01), Faus
patent: 2857879 (1958-10-01), Johnson
patent: 3069815 (1962-12-01), Valentine
patent: 3249466 (1966-05-01), Luster
patent: 3622386 (1971-11-01), Larson
patent: 3630910 (1971-12-01), Akashi et al.
patent: 3630910 (1971-12-01), Akashi et al.
patent: 3687725 (1972-08-01), Hartmann et al.

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