Glass composition for crystallized glass
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United States of America Patent
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-
Nov 11, 2003
Grant Date -
Dec 13, 2001
app pub date -
Apr 2, 2001
filing date -
Apr 3, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A polished glass disk medium substrate suitable for use as a substrate for a hard disk, a hard disk containing the substrate and methods for making the substrate. The substrate containing glass forming raw materials may be formed so as to have a Young's modulus of 110 or higher.
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