Methods for producing optomagnetic recording media and systems f

Details Methods for producing optomagnetic recording media and systems f Methods for producing optomagnetic recording media and systems f

1988-04-28

1990-02-27

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204376, 204 383, 204 42, C25D 1120

Patent

active

049043498

ABSTRACT:
In production of an optomagnetic recording medium having a porous anode oxidized coat on a base plate, a thin film of magnetic material of high saturated magnetization is developed after grinding and etching following formation of the anode oxidized coat in order to increase the effective reflection plane, thereby greatly raising accuracy of detection of the polarization angle at reading-out of signals.

REFERENCES:
patent: 4109287 (1978-08-01), Kawai et al.
patent: 4210946 (1980-07-01), Iwasaki et al.
patent: 4277809 (1981-07-01), Fisher et al.
patent: 4430387 (1984-02-01), Nakagawa et al.
patent: 4548682 (1985-10-01), Yoshida et al.
patent: 4563397 (1986-01-01), Ishiguro et al.

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