MATERIAL OF CERAMIC SUBSTRATE FOR THIN-FILM MAGNETIC HEAD
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United States of America Patent
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N/A
Issued Date -
Mar 12, 2009
app pub date -
Apr 7, 2006
filing date -
Apr 21, 2005
priority date (Note) -
Abandoned
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Abstract
. The WC includes at most 0.1 mass % of a metal, at most 0.5 mass % of oxygen and at most 0.5 mass % of nitrogen. And the WC has a mean particle size of 0.6 μm or less.
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