US Patent 7482739 Electron emitter comprised of dielectric material mixed with metal
Patent 7482739 was granted and assigned to NGK Insulators on January, 2009 by the United States Patent and Trademark Office.
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Patent abstract
A dielectric device of higher performance is provided. An electron emitter, to which the dielectric device is applied is provided with: an emitter including a dielectric; and an upper electrode and a lower electrode to which drive voltage is applied in order to emit electrons. The emitter is formed by the aerosol deposition method or the sol impregnation method, and the surface roughness of the upper surface thereof is controlled in the range from 0.1 to 3 in Ra.
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US Patent 07482739 Electron emitter comprised of dielectric material mixed with metal US Patent 7482739 Electron emitter comprised of dielectric material mixed with metal
Infobox
Patent Number
0748273900
Patent Number
748273900
Edits on 25 Apr, 2023
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074827390
Date of Patent
January 27, 2009
0Patent Application Number
111809750
Date Filed
July 13, 2005
0Official Website
Patent Primary Examiner
Edits on 24 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074827390
Date of Patent
January 27, 2009
0Patent Application Number
111809750
Date Filed
July 13, 2005
0Official Website
Patent Primary Examiner
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US Patent 07482739 Electron emitter comprised of dielectric material mixed with metal
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07482739
Date of patent
January 27, 2009
Patent application number
11180975
Date Filed
July 13, 2005
Patent primary examiner
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