Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1985-10-21

1987-06-09

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

427128, 428328, 428331, 428694, 428900, 428329, 428695, 428405, 428403, 428407, G11B 5708

Patent

active

046719938

ABSTRACT:
A magnetic recording medium comprising a substrate and a magnetic layer formed on the substrate and comprising an inorganic powder having an average primary particle size of 0.35 .mu.m or less, an angle of repose of 40.degree. or more and a Mors hardness of 5 or more as a reinforcing material, and a magnetic powder, is excellent in wear resistance and durability of the magnetic layer and improves wear and injury of a magnetic head.

REFERENCES:
patent: 3833412 (1974-09-01), Akashi
patent: 3929658 (1975-12-01), Beske
patent: 4420531 (1983-12-01), Tokuda
patent: 4431712 (1984-02-01), Matsufuji
patent: 4460651 (1984-07-01), Hosaka
patent: 4578314 (1986-03-01), Ohta

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