Magnetooptical recording medium

Details Magnetooptical recording medium Magnetooptical recording medium

1995-02-07

1996-07-23

Kiliman, Leszek

Stock material or miscellaneous articles

Composite

Of inorganic material

428694GT, 428694DF, 428694RL, 428172, 428213, 428214, 428215, 428332, 428336, 428702, 428457, 428900, 369 13, G11B 566

Patent

active

055388019

ABSTRACT:
A magnetooptical recording medium of good durability and increased reproducing output comprising a substrate and a coating type magnetic layer with a thickness of not larger than 0.5 .mu.m which is formed on the substrate and comprises a binder and a hexagonal system of ferrite particles dispersed therein, wherein a Kerr rotation angle is at least 0.3 degree when it is measured with a light having a wavelength of 830 nm under a residual magnetization condition after a magnetic field of 10 kOe is applied to the magnetic layer, and the reflectance on the surface of the magnetic layer using a light having a wavelength of 830 nm is at least 30%.

REFERENCES:
patent: 3224333 (1965-12-01), Kolk, Jr.
patent: 4586092 (1986-04-01), Martens et al.
patent: 4670322 (1987-06-01), Nakamura et al.
patent: 4690861 (1987-09-01), Nakamura et al.
patent: 4759966 (1988-07-01), Shimozawa et al.
patent: 4770933 (1988-09-01), Kitahata et al.
patent: 4788095 (1988-11-01), Machida et al.

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