Recording medium and recording-reproduction system provided with

Details Recording medium and recording-reproduction system provided with Recording medium and recording-reproduction system provided with

1981-10-05

1985-05-21

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of silicon containing

360114, 360134, 360135, 360136, 427128, 427131, 427132, 428446, 428692, 428693, 428694, 428900, 428621, 428655, 428678, 428928, G11B 572, G11B 566

Patent

active

045186570

ABSTRACT:
A recording medium comprises a first layer prepared from a material of perpendicular anisotropy, a second layer prepared from a compound of noncrystalline rare earth metal--3d transition metal and deposited on said first layer, and a transparent protective layer and mounted on said second layer. Data is magnetically recorded on the recording medium and the recorded data is optically read by utilizing the magneto-optics effects.

REFERENCES:
patent: 3229273 (1966-01-01), Baaba
patent: 4042341 (1977-08-01), Smeggil
patent: 4210946 (1980-07-01), Iwasaki
patent: 4277809 (1981-07-01), Fisher
patent: 4293621 (1981-10-01), Togami
patent: 4367257 (1983-01-01), Arai
patent: 4390600 (1983-06-01), Ohta

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