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Class Information
Number: 313/336
Name: Electric lamp and discharge devices > Electrode and shield structures > Point source cathodes
Description: Cathodes where the cathode is designed so that the electron emission from the cathode is restricted to a point-like area.

Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Patent Number Title Of Patent Date Issued
8035291 Field emission electrode, manufacturing method thereof, and electronic device Oct. 11, 2011
8026674 Electron source and method for the operation thereof Sep. 27, 2011
8013505 Field emission electron source having a carbon nanotube needle Sep. 6, 2011
7923914 Field emission cathode device and field emission display using the same Apr. 12, 2011
7898160 Method and apparatus for modifying object with electrons generated from cold cathode electron emitter Mar. 1, 2011
7898161 Diamond electron radiation cathode, electron source, electron microscope, and electron beam exposer Mar. 1, 2011
7868531 Carbon nanotube arrays for field electron emission Jan. 11, 2011
7863805 Diamond electron emission cathode, electron emission source, electron microscope, and electron beam exposure device Jan. 4, 2011
7847273 Carbon nanotube electron gun Dec. 7, 2010
7847596 Electrical device for performing logic functions Dec. 7, 2010
7839067 Carbon film having shape suitable for field emission Nov. 23, 2010
7821193 Color pixel element for field emission display Oct. 26, 2010
7808169 Electron emitting device and electromagnetic wave generating device using the same Oct. 5, 2010
7791258 Activation effect on carbon nanotubes Sep. 7, 2010
7781954 Pixel element for field emission display Aug. 24, 2010
7755271 Field emission electrode, manufacturing method thereof, and electronic device Jul. 13, 2010
7714492 Electron emission material and electron emission panel having the same May. 11, 2010
7710013 Electron emitting device with projection comprising base portion and electron emission portion May. 4, 2010
7667381 Electron emission device and electron emission display device using the same Feb. 23, 2010
7595490 Charged particle beam emitting device and method for operating a charged particle beam emitting device Sep. 29, 2009
7586098 Ion stripper device made of carbon nanotubes or fullerenes Sep. 8, 2009
7579766 Electron emission device with improved electron emission structure for increasing emission efficiency and lowering driving voltage Aug. 25, 2009
7573200 Plasma display panel Aug. 11, 2009
7554255 Electric field emission device having a triode structure fabricated by using an anodic oxidation process and method for fabricating same Jun. 30, 2009
7545089 Sintered wire cathode Jun. 9, 2009
7545179 Electronic device and method and performing logic functions Jun. 9, 2009
7544951 Electron gun assembly Jun. 9, 2009
7531953 Field emission cathode with field emitters on curved carrier and field emission device using the same May. 12, 2009
7527988 Triode structure field emission display device using carbon nanotubes and method of fabricating the same May. 5, 2009
7508124 Field emission device, display adopting the same and method of manufacturing the same Mar. 24, 2009
7501750 Emitting device having electron emitting nanostructures and method of operation Mar. 10, 2009
7492086 Low work function emitters and method for production of FED's Feb. 17, 2009
7489069 Field emission light source and a related backlight device Feb. 10, 2009
7486011 Thread-type electron emission element Feb. 3, 2009
7468578 Group III-nitride layers with patterned surfaces Dec. 23, 2008
7466072 Carbon nanotube and electron emission device including the carbon nanotube Dec. 16, 2008
7459839 Low voltage electron source with self aligned gate apertures, and luminous display using the electron source Dec. 2, 2008
RE40566 Flat panel display including electron emitting device Nov. 11, 2008
7446469 Flat lamp device with multi electron source array Nov. 4, 2008
7429820 Field emission display with electron trajectory field shaping Sep. 30, 2008
7411341 Gated nanorod field emitter structures and associated methods of fabrication Aug. 12, 2008
7388325 Flat display device Jun. 17, 2008
7385344 Electron emission device including dummy electrodes Jun. 10, 2008
7372197 Field emission device and field emission display including dual cathode electrodes May. 13, 2008
7365481 Field emission device with change in emission property Apr. 29, 2008
7355329 Field emission lamp Apr. 8, 2008
7348720 Electron emission device and electron emission display including the same Mar. 25, 2008
7345415 Array-like flat lighting source Mar. 18, 2008
7339324 Electron emission device and electron emission display using the same Mar. 4, 2008
7323812 Process for producing diamond electron emission element and electron emission element Jan. 29, 2008

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