Magnetic recording medium and method of producing the same
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United States of America Patent
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Nov 2, 1999
Grant Date -
N/A
app pub date -
Oct 23, 1996
filing date -
Oct 23, 1995
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Abstract
The present invention relates to a magnetic recording medium comprising at least a magnetic layer, optionally by means of an under layer and an intermediate layer thereon, on a non-magnetic substrate and, occasionally a protective layer disposed on the magnetic layer, wherein projections each of a shape having a plurality of protrusions per one projection are formed by the number of from 10 to 10.sup.6 per 1 mm.sup.2 by irradiation of energy beam to a surface of at least one of the substrate, the under layer, the intermediate layer, the magnetic layer and the protective layer.
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