Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1987-10-16

1989-02-07

Thibodeau, Paul J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428694, 428900, G11B 570

Patent

active

048031216

ABSTRACT:
A magnetic recording medium is disclosed, comprising a non-magnetic support having thereon a magnetic layer comprising ferromagnetic fine particles, a binder, and .alpha.-alumina particles having an average size of from about 0.1 to 0.3 .mu.m, provided that the number of .alpha.-alumina particles having a particle size of larger than 0.05 .mu.m is at least equal to the number of .alpha.-alumina particles having a particle size of up to 0.05 .mu.m.

REFERENCES:
patent: 4238341 (1980-12-01), Kato
patent: 4584243 (1986-04-01), Kadokura
patent: 4590127 (1986-05-01), Hashimoto
patent: 4652500 (1987-03-01), Ejiri
patent: 4670337 (1987-06-01), Tokuda
patent: 4671993 (1987-06-01), Kadokura

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