Magneto-optic memory medium

Details Magneto-optic memory medium Magneto-optic memory medium

1982-01-05

1983-06-28

Pianalto, Bernard D.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428 64, 428164, 428457, 428655, 428694, 428900, 428928, B21D 3900

Patent

active

043906001

ABSTRACT:
A magneto-optic memory medium is disclosed which is made up by an acryl resin substrate having strip-like grooves, a magneto-optic magnetization film disposed on the substrate and having an axis of easy magnetization perpendicular to its surface. The magnetization film is made of amorphous ferromagnetic material such as GdTbFe, GdTbDyFe, SmTbFe, GdDyFe, TbCo or the like. A reflective film is provided overlying the magneto-optic magnetization film.

REFERENCES:
patent: 4239835 (1980-12-01), Iijima et al.
patent: 4272348 (1981-06-01), Cox et al.

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