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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
8648604 Ionization gauge with operational parameters and geometry designed for high pressure operation Feb. 11, 2014
8624477 Carbon nanotube field emitter Jan. 7, 2014
8536546 Carbon nanotube electron gun Sep. 17, 2013
8530907 Room temperature silicon-compatible LED/laser with electrically pumped field emission device Sep. 10, 2013
8531097 Field emitter Sep. 10, 2013
8519608 Electron source and electron beam apparatus Aug. 27, 2013
8492966 Symmetric field emission devices using distributed capacitive ballasting with multiple emitters to obtain large emitted currents at high frequencies Jul. 23, 2013
8476819 Triode-structured field emission display with anode and gate on the same substrate Jul. 2, 2013
8456076 Electron emitting source and manufacturing method of electron emitting source Jun. 4, 2013
8450920 Field emission electronic device May. 28, 2013
8446088 Field emission device for emitting white light May. 21, 2013
8436524 Electron source May. 7, 2013
8421327 Emitter having carbon nanotubes Apr. 16, 2013
8421330 Carbon film having shape suitable for field emission Apr. 16, 2013
8410678 Liquid metal wetting of micro-fabricated charge-emission structures Apr. 2, 2013
8368295 Elelctron emitter and electron emission element Feb. 5, 2013
8354791 Photomultiplier tube Jan. 15, 2013
8344607 Electron-emitting device and display panel including the same Jan. 1, 2013
8339022 Field emission electron source having carbon nanotubes Dec. 25, 2012
8319414 Image display apparatus with low-potential electrode set Nov. 27, 2012
8304975 Electron beam apparatus and image display apparatus using the same Nov. 6, 2012
8274205 System and method for limiting arc effects in field emitter arrays Sep. 25, 2012
8253700 Touch panel and display device using the same Aug. 28, 2012
8248380 Touch panel and display device using the same Aug. 21, 2012
8248377 Touch panel Aug. 21, 2012
8243030 Touch panel and display device using the same Aug. 14, 2012
8237668 Touch control device Aug. 7, 2012
8237674 Touch panel and display device using the same Aug. 7, 2012
8237672 Touch panel and display device using the same Aug. 7, 2012
8237670 Touch panel and display device using the same Aug. 7, 2012
8237673 Touch panel and display device using the same Aug. 7, 2012
8237680 Touch panel Aug. 7, 2012
8217565 Cold field emitter Jul. 10, 2012
8212465 Field emission device Jul. 3, 2012
8200151 Method and apparatus for enhancing signal carrier performance in wireless networks Jun. 12, 2012
8193692 Surface field electron emitters using carbon nanotube yarn and method of fabricating carbon nanotube yarn thereof Jun. 5, 2012
8177987 Method for producing electron-emitting device and method for producing image display apparatus including the same May. 15, 2012
8172633 Field emission display and manufacturing method of the same having selective array of electron emission source May. 8, 2012
8169134 Field emission device May. 1, 2012
8148685 Transmission electron microscope micro-grid Apr. 3, 2012
8138665 Liquid metal wetting of micro-fabricated charge-emission structures Mar. 20, 2012
8129894 Carbide nanostructures and methods for making same Mar. 6, 2012
8120238 Deep ultraviolet semiconductor optical device Feb. 21, 2012
8115207 Vacuum channel transistor and diode emitting thermal cathode electrons, and method of manufacturing the vacuum channel transistor Feb. 14, 2012
8106576 Field emission unit and pixel tube for field emission display Jan. 31, 2012
8080930 Self-regenerating nanotips for low-power electric propulsion (EP) cathodes Dec. 20, 2011
8076832 Electron emitter structure and associated method of producing field emission displays Dec. 13, 2011
8075359 Phosphorus-doped diamond film allowing significantly reduced electron emission voltage, method for producing the same, and electron source using the same Dec. 13, 2011
8076834 Field emission device with protecting vapor Dec. 13, 2011
8040034 Electron source Oct. 18, 2011

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