Magnetic recording media

Details Magnetic recording media Magnetic recording media

1982-06-30

1984-01-10

Pianalto, Bernard D.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428330, 428694, 428900, H01F 1002

Patent

active

044254016

ABSTRACT:
Disclosed is a magnetic recording medium comprising substrate and a resinous composition containing magnetic particles of uniaxially-anisotropic hexagonal crystals having particle diameters of 0.01.about.0.3 .mu.m and coated on said substrate; the ratio of remanent magnetization to saturation magnetization on the magnetization curve corrected to demagnetizing field which is measured in a direction vertical to the surface of the recording medium, ranging from 0.3 to 0.7. This magnetic recording medium requires no orientation treatment for its production.

REFERENCES:
patent: 4075672 (1978-02-01), Manly
patent: 4207092 (1980-06-01), Berry
Finn et al., "Very High Coercivity Particles," The Complete Handbook of Magnetic Recording, 1980, p. 193.
Mee, C. D., "Magnetic Material for Tape," Physics of Magnetic Recording, 1964, p. 206.
Fayling, R. E. et al., "Magnetic Recording Properties of SmCo.sub.5," IEEE, vol. 15, No. 5, Sep. 1978.
Fayling, R. E., "Anisotropic Erasure and Demagnetization Characteristics of Recording Tapes Comprising Particles with Uniaxial Magnetocrystalline Anisotropy," IEEE, vol. 13, No. 5, Sep. 1977.

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