Methods for producing optomagnetic recording media and systems for their use
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United States of America Patent
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Feb 27, 1990
Issued Date -
N/A
app pub date -
Apr 28, 1988
filing date -
Apr 3, 1985
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Expired
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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.
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