Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1983-10-26

1986-02-25

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

252 6254, 252 6255, 360134, 360135, 360136, 427128, 427131, 427 44, 428694, 428900, 428457, G11B 568

Patent

active

045728666

ABSTRACT:
A magnetic recording medium comprising a support and a magnetic layer on said support. Said magnetic layer is a unitary magnetic layer comprising ferromagnetic metallic powder. The average grain size of said ferromagnetic powder is not more than 0.5.mu., the ratio of the major axis to the minor axis (acicular ratio) of said powders is from 1.3 to 4.5 and the coercive force of said powders is from 550 to 800 Oe.

REFERENCES:
patent: 3702270 (1972-11-01), Kawasaki
patent: 4246316 (1981-01-01), Aonuma et al.
patent: 4262037 (1981-04-01), Asada et al.
patent: 4267207 (1981-05-01), Sasazawa et al.
patent: 4273807 (1981-06-01), Berry
patent: 4396668 (1983-08-01), Saito et al.
patent: 4480004 (1984-10-01), Togawa

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