METHOD OF MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC STORAGE MEDIUM
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United States of America Patent
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Issued Date -
May 3, 2012
app pub date -
Oct 21, 2011
filing date -
Oct 29, 2010
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Abandoned
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Abstract
A method of manufacturing a glass substrate for a magnetic recording medium, wherein inner and outer circumference end faces of a disk-like glass substrate having a central aperture are at least treated by: a step of grinding, a step of etching, and a step of polishing, wherein the steps are performed in this order.
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