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Yamada Nobuyuki
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Kitakyushu, JP
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last 30 patents
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Patent Grant
Discharge lamp, discharge lamp sealing method, discharge lamp seali...
Patent number
6,354,901
Issue date
Mar 12, 2002
Toto, Ltd.
Tetsuaki Bundo
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Power regulator of discharge lamp and variable color illumination a...
Patent number
5,491,388
Issue date
Feb 13, 1996
Toto Ltd.
Yamada Nobuyuki
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR