Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1996-10-03

2000-10-24

Rodee, Christopher D.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428323, 428336, 428694BR, 428694BN, 428694BS, G11B 5714

Patent

active

06136410&

ABSTRACT:
To enable high density mass storage recording, for an upper magnetic layer, the length of a major axis of metallic magnetic powder, the type of binder, the hardness and particle size of abrasive powder, the condition of kneading, surface roughness and thickness are regulated, for a lower nonmagnetic layer, the length of a major axis of nonmagnetic powder, the ratio of the length of a major axis to that of a minor axis and the type of binder are regulated and further, a method of forming the upper magnetic layer and the lower nonmagnetic layer, the thickness of a nonmagnetic base material and Young's modulus are regulated.

REFERENCES:
patent: 5258223 (1993-11-01), Inaba et al.
patent: 5326618 (1994-07-01), Ryoke et al.
patent: 5385779 (1995-01-01), Miura et al.
patent: 5637390 (1997-06-01), Isobe et al.

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