Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1985-11-27

1987-11-10

Thibodeau, Paul J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

252 6251, 252 6263, 427128, 428694, 428900, 428695, G11B 570

Patent

active

047057181

ABSTRACT:
A magnetic recording medium suitable for high density recording comprising a substrate and a magnetic layer wherein the magnetic layer comprises a binder resin and ferrite magnetic powder comprising hexagonal system plate particles having such magnetic anisotropy that a magnetic anisotropy constant K.sub.1 corresponding to the vertical magnetic component and a magnetic anisotropy constant K.sub.2 corresponding to the horizontal magnetic component, both derived from Fourier analysis of a magnetic torque curve measured in a plane including the C axis of the hexagonal system, satisfy following equations:

REFERENCES:
patent: 4442159 (1984-04-01), Dezawa et al.
patent: 4511617 (1985-04-01), Hideyama et al.
patent: 4565726 (1986-01-01), Oguchi et al.
patent: 4606971 (1986-08-01), Ido et al.

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