Production of a magnetic recording medium
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United States of America Patent
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Feb 23, 1993
Grant Date -
N/A
app pub date -
Apr 10, 1992
filing date -
Apr 12, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A magnetic recording medium, consisting essentially of a polymeric, web-like substrate and a coherent thin layer of a ferromagnetic material, is produced in a chamber under reduced pressure by depositing a vapor jet of the ferromagnetic material onto the moving substrate surface guided over a cylindrical drum, by a process in which the axis of the cooling element is inclined relative to the plane of the evaporator unit.
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