Magnetic recording medium and process for its production
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United States of America Patent
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Oct 30, 2001
Grant Date -
N/A
app pub date -
Mar 4, 1999
filing date -
Mar 25, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A magnetic recording medium comprising a non-ferromagnetic substrate and a magnetic recording layer formed on the substrate with an underlayer of Cr or a Cr alloy interposed therebetween, which has a seed layer between the substrate and the underlayer, wherein said seed layer is made of a material which contains at least 30 ppm of oxygen and which has a B2 crystal structure.
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