Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Reexamination Certificate
2008-10-23
2011-12-06
Ton, Toan (Department: 2889)
Electric lamp and discharge devices
Discharge devices having a thermionic or emissive cathode
Reexamination Certificate
active
08072127
ABSTRACT:
A thermionic electron emission device includes an insulating substrate, and one or more grids located thereon. The one or more grids include(s) a first, second, third and fourth electrode down-leads located on the periphery thereof, and a thermionic electron emission unit therein. The first and second electrode down-leads are parallel to each other. The third and fourth electrode down-leads are parallel to each other. The first and second electrode down-leads are insulated from the third and fourth electrode down-leads. The thermionic electron emission unit includes a first electrode, a second electrode, and a thermionic electron emitter. The first electrode and the second electrode are separately located and electrically connected to the first electrode down-lead and the third electrode down-lead respectively. Wherein the thermionic electron emitter includes a carbon nanotube film structure.
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Fan Shou-Shan
Jiang Kai-Li
Liu Liang
Liu Peng
Altis Law Group, Inc.
Featherly Hana
Hon Hai Precision Industry Co. Ltd.
Ton Toan
Tsinghua University
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