Magnetic recording medium with laser textured glass or glass-ceramic substrate
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United States of America Patent
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Sep 21, 1999
Grant Date -
N/A
app pub date -
Jun 27, 1996
filing date -
May 9, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A magnetic recording medium is formed with a laser textured glass or glass-ceramic substrate. The use of a pulsed, focused laser light beam, such as a CO.sub.2 derived laser light beam, enables the formation of an accurately textured landing zone on a glass or glass-ceramic substrate which is substantially replicated on subsequently applied layers.
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