Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1985-05-30

1987-06-30

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

427131, 427128, 428329, 428331, 428336, 428694, 428900, 428408, G11B 572

Patent

active

046770232

ABSTRACT:
A magnetic recording medium comprising a non-magnetic substrate, a ferromagnetic thin film formed on the substrate, and a top coating layer containing a fine particulate pigment, formed on the surface of the ferromagnetic thin film, wherein the top coating layer satisfies the condition of 0.3x<y<2x where x is the average particle size of the fine particulate pigment and y is the thickness of the top coating layer, and the average particle size x is less than 200 .ANG..

REFERENCES:
patent: 4309482 (1982-01-01), Suzuki
patent: 4425404 (1984-01-01), Suzuki
patent: 4443514 (1984-04-01), Yamamoto
patent: 4542071 (1985-09-01), Homola

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