Nov 11, 2003
Nov 22, 2000
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Tungsten electrodes are arranged on two rhenium rods in an electrode chamber in a high-pressure gas discharge lamp, such that the rhenium rods project to inside the electrode chamber.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
- [Patents Count]
|Patent Info||(Count)||# Cites||Year|
|5,404,077 High-pressure discharge lamp||16||1992|
|6,194,832 Metal halide lamp with aluminum gradated stacked plugs||12||1998|
|6,201,349 Electrode with a helical attachment||2||1999|
|4,806,816 High-pressure discharge lamp||3||1987|
|6,169,365 High-pressure metal halide lamp having three part electrode rods||13||1998|
|6,534,918 High pressure discharge lamp with tungsten electrode rods having second parts with envelope of rhenium||1||1999|
|6,368,175 Discharge lamp and method of producing the same||9||1999|
|6,307,321 High-pressure discharge lamp and lighting apparatus||11||2000|
Patent Citation Ranking
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