Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1985-03-25

1986-09-16

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

427128, 427131, 360134, 360135, 360136, 428323, 428328, 428329, 428330, 428331, 428694, 428900, G11B 572

Patent

active

046122354

ABSTRACT:
This invention relates to a magnetic recording medium whose coefficient of friction is lowered without lowering S/N and which has an improved running property, which comprises a magnetic recording layer on one side of a nonmagnetic support and a back layer containing an inorganic powder and a binder and having a thickness of at most 2.mu., on the other side thereof, characterized in that the surface of the back layer is provided with surface projections with a height of 0.05 to 0.8.mu., an interval of at least 50.mu. and 50 to 50,000 projections/cm.sup.2.

REFERENCES:
patent: 4189514 (1980-02-01), Johnson
patent: 4367261 (1983-01-01), Miyoshi
patent: 4427738 (1984-01-01), Fujiyama
patent: 4452863 (1984-06-01), Takizawa
patent: 4474843 (1984-10-01), Miyoshi

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