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Azuma; Masanobu
Shunan, JP
No. of patents:

Patent Number Title Of Patent Date Issued
8148283 Aluminum nitride sintered body April 3, 2012
A high-purity aluminum nitride sintered body is provided by efficiently removing oxides contained in a raw material powder in producing an aluminum nitride sintered body and preventing composite oxide produced by reaction of oxides contained in the raw material powder with a sintering
7960915 Cement for bonding an aluminum nitride arc tube body to a molybdenum electrode support, articles June 14, 2011
A cement for bonding an arc tube body made of an aluminum nitride sintered body and an electrode support made of molybdenum achieves high gas tightness in the obtainable arc tube without impairing the excellent translucency of the aluminum nitride sintered body. The cement contains a
7553788 Process for producing an aluminum nitride sintered body June 30, 2009
An aluminum nitride sintered body having resistance to plasma gas and high thermal conduction and having excellent optical properties. The aluminum nitride sintered body of the present invention is characterized in that the proportion of positrons which are annihilated within a period of
7081425 Aluminum nitride sintered body July 25, 2006
An aluminum nitride sintered body having an oxygen concentration of not larger than 400 ppm, a metal impurity concentration of not larger than 150 ppm, and a carbon concentration of not larger than 200 ppm, and having an average crystal grain size of 2 .mu.m to 20 .mu.m. The sintered

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