Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1990-01-22

1992-02-18

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428323, 428329, 428336, 428694, 428900, G11B 2300

Patent

active

050893173

ABSTRACT:
A magnetic recording medium comprising two or more magnetic layers containing ferromagnetic substance dispersed in a binder provided on a non-magnetic substrate is disclosed, which is characterized in that a ferromagnetic substance whose water content is adjusted within the range of from 0.4 to 2.0 wt. % by moisture conditioning is used in the upper layer of the magnetic layers and a ferromagnetic substance having an water content less than by at least 0.1 wt. % than that of the feromagnetic substance used in the upper layer is used in the lower layer of the magnetic layers.

REFERENCES:
patent: 4643941 (1987-02-01), Miyoshi et al.
patent: 4851289 (1989-07-01), Ogawa et al.

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