Compositions: ceramic – Ceramic compositions – Refractory
Reexamination Certificate
2006-03-17
2008-09-09
Group, Karl E (Department: 1793)
Compositions: ceramic
Ceramic compositions
Refractory
Reexamination Certificate
active
07422992
ABSTRACT:
An aluminum nitride sintered body is provided, which essentially contains aluminum nitride, 0.4 to 2.5 wt % magnesium and 2.0 to 5.0 wt % yttrium. The aluminum nitride sintered body has an average particle size of not more than 1.0 μm.
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Teratani Naomi
Yamada Naohito
Group Karl E
NGK Insulators Ltd.
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