78430743
Jun 7, 2004
Aug 15, 2006
Industrial ceramics in powder and block form; Ceramic materials for industrial use in powder and block form; Transparent ceramic materials for industrial use in powder and block form
ChemicalsLenses made of ceramics; Transparent ceramics for use as lenses; Transparent ceramics for use as optical elements, namely, light pick up parts of audio visual equipment; Ceramic components for use as parts of photographic apparatus, digital audio and visual apparatus, and communication apparatus and equipment, namely, optical lenses
Electrical and Scientific Apparatus