Magnetic recording medium

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...

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428329, 428328, 428336, 428684B, 428694BA, 428394BM, 428900, B32B 516, G11B 566

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active

054807131

ABSTRACT:
A magnetic recording medium having an improved output property over the wide range of wavelength, by controlling the magnetic reluctance and saturated magnetic flux density of the outermost layer and at least one layer other than the outermost layer, as specified in the claims, is disclosed. A magnetic matal powder contained in the outermost layer has an average major axis length of not more than 250 nm and a ratio of the average major axis length divided by an average X-ray measured particle size is less than 12.

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patent: 4624894 (1986-11-01), Kishimoto
patent: 4851289 (1989-07-01), Ogawa et al.
patent: 4911997 (1990-03-01), Asai et al.
patent: 5051303 (1991-09-01), Noguchi et al.
Patent Abstracts of Japan, vol. 13, No. 16 (E-703); Jan 13, 1989 JPA-63-222,404; Sep. 16, 1988.
Patent Abstracts of Japan, vol. 14 No. 561 (P-1142); Dec. 13, 1990 JPA-2-240, 824; Dec. 13, 1990.
Patent Abstracts of Japan, vol. 14 No. 191 (p-1038); Apr. 18, 1990 JPA-2-35, 622; Feb. 6, 1990.

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