US Patent 7298073 Electron tube with stepped fixing portion
Patent 7298073 was granted and assigned to Futaba on November, 2007 by the United States Patent and Trademark Office.
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Patent abstract
In a fluorescent display tube, a metal spacer is used as a height sustaining member and a fixing member of linear member so that the fixing strength of the linear member in the lengthwise direction is increased. In the fluorescent display tube, both ends of filament and Al wires are bonded onto a cathode electrode formed on a substrate by ultrasonic bonding. The ends of the filament are embedded in a part in the Al wires in the shape of being bent into a letter Z or an inverted letter Z to form fixing portion.
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US Patent 07298073 Electron tube with stepped fixing portion US Patent 7298073 Electron tube with stepped fixing portion
Infobox
Patent Number
0729807300
Patent Number
729807300
Edits on 24 Mar, 2023
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
072980730
Date of Patent
November 20, 2007
0Patent Application Number
107701730
Date Filed
February 2, 2004
0Official Website
Patent Primary Examiner
Edits on 26 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
072980730
Date of Patent
November 20, 2007
0Patent Application Number
107701730
Date Filed
February 2, 2004
0Official Website
Patent Primary Examiner
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US Patent 07298073 Electron tube with stepped fixing portion
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07298073
Date of patent
November 20, 2007
Patent application number
10770173
Date Filed
February 2, 2004
Patent primary examiner
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