Magnetic recording medium having a magnetic layer containing hex

Details Magnetic recording medium having a magnetic layer containing hex Magnetic recording medium having a magnetic layer containing hex

1995-12-29

1997-12-02

Resan, Stevan A.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428329, 428336, 428694BH, 428900, G11B 5706

Patent

active

056933975

ABSTRACT:
A disk-form magnetic recording medium is described, comprising a nonmagnetic support having provided thereon at least one magnetic layer comprising a binder and hexagonal ferrite magnetic particles dispersed therein, wherein the magnetic layer has an in-plane coercive force Hc of 1,200 to 3,000 Oe, an anisotropy field H.sub.k of more than 3000 Oe, an Hc/Hk ratio of 0.25 or higher, an in-plane orientation ratio of 0.8 or higher, and a vertical-direction squareness ratio calculated through diamagnetic correction of lower than 0.6.

REFERENCES:
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patent: 5114801 (1992-05-01), Aoki et al.
patent: 5118575 (1992-06-01), Maekawa et al.
patent: 5258223 (1993-11-01), Inaba et al.
patent: 5384175 (1995-01-01), Kojima et al.
patent: 5503911 (1996-04-01), Aoki et al.

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