Magnetic recording medium

Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...

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Details

427131, 428323, 428694, 428900, G11B 570

Patent

active

047465581

ABSTRACT:
A magnetic recording medium comprising a non-magnetic substrate and a coating type magnetic recording layer formed on the substrate, wherein barium ferrite magnetic powder is perpendicularly oriented, characterized in that an undercoating layer comprising a radiation curable binder and carbon black, is provided beneath the magnetic recording layer.

REFERENCES:
patent: 4183976 (1980-01-01), Yamada et al.
patent: 4442159 (1984-04-01), De Zawa et al.
patent: 4511617 (1985-04-01), Hideyama et al.
patent: 4547419 (1985-10-01), Nishimatsu et al.
patent: 4585697 (1986-04-01), Kato
patent: 4596747 (1986-06-01), Nishimatsu et al.

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