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Hirosumi Cho
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Yokohama-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Bulb and a method for welding a pipe and a conductive wire thereof
Patent number
6,492,771
Issue date
Dec 10, 2002
Toshiba Lighting & Technology Corporation
Hirosumi Cho
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
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Patent Application
Bulb and a method for welding a pipe and a conductive wire thereof
Publication number
20010028219
Publication date
Oct 11, 2001
Hirosumi Cho
H01 - BASIC ELECTRIC ELEMENTS