US Patent 7781951 Filament lamp
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Patent abstract
To provide a filament lamp having a plurality of filaments disposed in sequence in the axial direction of a light-emitting lamp tube which is configured so as not to shield emitted light from a center filament, internal leads for two filaments disposed proximate hermetically sealed parts at both ends are connected to metal foils in the same hermetically sealed part.
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Patent Inventor Names
Kenji Tanino0
Shinji Taniguchi0
Yukio Ueshima0
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US Patent 07781951 Filament lamp US Patent 7781951 Filament lamp
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Patent Number
077819510
Patent Number
77819510
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Official Website
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Patent Jurisdiction
Patent Number
077819510
Date of Patent
August 24, 2010
0Patent Application Number
124028530
Date Filed
March 12, 2009
0Official Website
Patent Primary Examiner
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US Patent 07781951 Filament lamp
Infobox
Is a
Patent jurisdiction
Patent number
07781951
Date of patent
August 24, 2010
Patent application number
12402853
Date Filed
March 12, 2009
Patent primary examiner
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