Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Reexamination Certificate
2006-05-23
2006-05-23
Sample, David (Department: 1755)
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
C501S066000, C501S069000, C501S070000, C313S480000, C313S493000, C313S636000, C445S022000
Reexamination Certificate
active
07049255
ABSTRACT:
The present invention provides colored glass containing no hazardous substances, such as CdS, CdSe and PbCrO4, and used for lamps and covers for lighting, a colored glass bulb with yellow to orange color produced by using said colored glass, and a method for producing said colored glass and said colored glass bulb. Glass composition having a formula of R′2O—RO—SiO2(wherein R′ is an alkali metal element and R is an alkaline earth metal element) is added with 0.01–0.6 of weight ratio of Mo (molybdenum) as MoO3and 0.01–1.0 of weight ratio of S to obtain the colored glass and the colored glass bulb therefrom. The colored glass having a formula of R′2O—RO—SiO2is formed to a desired shape to obtain the colored glass bulb, and the shaped hollow article is heated to 400–620° C. to apply a coloring treatment thereto.
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Oyama Hideki
Takagi Yukio
Maeda Kogyo Co., LTD
Nippon Electric Glass Co., LTD
Sample David
Stevens Davis Miller & Mosher LLP
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