Method of and apparatus for manufacturing recording medium
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United States of America Patent
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Jul 15, 2003
Grant Date -
Apr 18, 2002
app pub date -
Jul 13, 2001
filing date -
Jul 17, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a recording medium manufacturing method for obtaining a recording medium by effecting a surface smoothing treatment on a surface smoothing treatment surface of a surface of a medium, the surface smoothing treatment surface of the medium is locally pressed by a polishing work tape having a pressure area less than 1 mm, more preferably, less than 0.5 mm with respect to both radial direction and tangential direction relative to rotation of the medium. In a polishing work of recording medium manufacturing process, a problem of occurrence of defects such as scratches on the surface layer can be improved, whereby yield can be increased and mass-productivity can be improved.
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