Magnetic recording medium having at least two layers wherein the

Details Magnetic recording medium having at least two layers wherein the Magnetic recording medium having at least two layers wherein the

1994-12-22

1996-04-23

Resan, Stevan A.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428328, 428332, 428336, 428402, 428694BN, 428900, 428694BS, 428694BM, G11B 500

Patent

active

055101798

ABSTRACT:
A magnetic recording medium has at least two coating layers on a non-magnetic substrate. The uppermost layer of the coating layers is a magnetic layer having a thickness of 0.2-0.5 .mu.m thick and comprising a ferromagnetic powder, inorganic material-containing alumina particles having a mean particle size of 0.1-0.3 .mu.m, and a binder. The medium ensures effective head cleaning and has improved durability and still life.

REFERENCES:
patent: 4469758 (1984-09-01), Scott
patent: 4780365 (1988-10-01), Kakuishi
patent: 5080967 (1992-01-01), Noguchi
patent: 5366795 (1994-11-01), Goto

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