| Patents for H01J 1 - Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps (21,638) |
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| 12/04/1990 | US4975621 Coated article with improved thermal emissivity |
| 12/04/1990 | US4975617 Electric discharge tube |
| 11/27/1990 | CA1276965C Hot cathode in wire form coated with rare and alkaline earth metal oxides containing barium oxide |
| 11/21/1990 | CN1047167A Device for generating electrons, and display device |
| 11/21/1990 | CN1010530B Coating method for making emission filament used for ionization in mass spectrum field |
| 11/13/1990 | US4970425 Thermal device, mount, and manufacturing method |
| 11/13/1990 | US4970392 Stably emitting demountable photoelectron generator |
| 11/13/1990 | US4969850 Method of manufacturing a cold cathode, field emission device and a field emission device manufactured by the method |
| 11/13/1990 | CA1276295C Electron beam addressed memory |
| 11/07/1990 | CN1046812A 氧化物阴极 Oxide cathode |
| 11/06/1990 | US4968382 Forming very sharp emitter points for field emission devices |
| 10/31/1990 | EP0395158A1 Device for generating electrons, and display device |
| 10/31/1990 | EP0395157A1 Oxide cathode |
| 10/31/1990 | EP0394698A2 Electron beam lithography machine and image display apparatus |
| 10/30/1990 | CA1275687C Electron gun assembly having a reinforced heater tab |
| 10/28/1990 | CA2015399A1 Oxide cathode |
| 10/28/1990 | CA2015396A1 Device for generating electrons, and display device |
| 10/25/1990 | DE3913338A1 High thermal conductivity embedding material - esp. for embedding cathode heating elements of electron tubes |
| 10/24/1990 | EP0393449A1 Fluorescent lamp |
| 10/23/1990 | US4965486 Electron gun design using a lanthanum hexaboride cathode |
| 10/17/1990 | CN1046245A Cathode for electric discharge tube |
| 10/10/1990 | EP0391466A1 Cathode for an electric discharge tube |
| 10/04/1990 | WO1990011611A1 Electrode for discharge light source |
| 10/04/1990 | WO1990011609A1 Field-effect electron source crt gun |
| 10/03/1990 | EP0390269A1 Scandate cathode |
| 10/03/1990 | CN1009880B Shield grid for color cathode ray tube and method of manufacture thereof |
| 10/03/1990 | CN1009878B Heater for indirectly-heated cathode |
| 09/30/1990 | CA2008849A1 Reflective lamps having an improved light source mounting arrangement |
| 09/26/1990 | EP0389270A2 Electron gun with integral shadow grid |
| 09/26/1990 | EP0389228A1 High temperature operating element |
| 09/26/1990 | EP0388984A2 Electron-beam generator and image display apparatus making use of it |
| 09/25/1990 | US4959583 Reflective lamps having an improved light source mounting arrangement |
| 09/25/1990 | CA1274580A1 Vacuum electron tube having an oxide cathode comprising chromium reducing agent |
| 09/22/1990 | CA2012708A1 Electron gun with integral shadow grid |
| 09/19/1990 | EP0387615A1 Process for manufacturing a dynode, and dynode produced according to this process |
| 09/11/1990 | US4956578 Surface conduction electron-emitting device |
| 09/11/1990 | US4956574 Switched anode field emission device |
| 09/04/1990 | US4954745 Cathode structure |
| 09/04/1990 | US4954744 Electron-emitting device and electron-beam generator making use |
| 09/04/1990 | US4954717 Pattern on transparent sustrate |
| 09/04/1990 | US4954711 Low-voltage source for narrow electron/ion beams |
| 08/30/1990 | DE3905549A1 Gas-discharge arrangement |
| 08/29/1990 | EP0384813A1 Electron gun with a beam modulated by an optical device |
| 08/29/1990 | EP0384406A1 Indirectly heated cathode for a gas discharge tube |
| 08/22/1990 | EP0223834B1 Digital cathode current control loop |
| 08/21/1990 | CA1272876A1 Method of manufacturing a scandate dispenser cathode and scandate dispenser cathode manufactured according to the method |
| 08/07/1990 | CA1272504A1 Surface for electric discharge |
| 08/01/1990 | EP0380205A1 Fast warm-up cathode for high power vacuum tubes |
| 07/31/1990 | US4945286 Microchannel plates formed with deposition using non-reactive gas |
| 07/25/1990 | EP0379298A2 Method of forming an electrode for an electron emitting device |
| 07/25/1990 | EP0379297A2 Electronic devices |
| 07/25/1990 | EP0378793A2 Electron emission cathode, its manufacturing process, electron beam supply with such a cathode and vacuum-processing apparatus |
| 07/23/1990 | CA2008295A1 Fast warm-up cathode for high power vacuum tubes |
| 07/12/1990 | WO1990007788A1 Image display device |
| 07/10/1990 | US4940916 Electron source with micropoint emissive cathodes and display means by cathodoluminescence excited by field emission using said source |
| 07/04/1990 | EP0376825A1 Electron source of the field emission type |
| 07/04/1990 | CN1043586A Indirectly heated cathode assembly and its associated electron gun structure |
| 07/04/1990 | CN1043585A 氧化物阴极 Oxide cathode |
| 07/03/1990 | US4939373 Electron image projector |
| 06/28/1990 | DE3843023A1 Hollow cathode of a plasma electron and ion source |
| 06/27/1990 | EP0374572A2 Cathode with a control arrangement for a flat-picture tube, and mounting frame for such an arrangement |
| 06/26/1990 | CA1270890A1 Cathode for electron tube |
| 06/20/1990 | EP0373701A1 Oxide cathode |
| 06/20/1990 | EP0373511A2 Indirectly heated cathode assembly. |
| 06/13/1990 | DE3940215A1 Kathoden- und heizungsbaugruppe fuer elektronenstrahlanalagen Cathode and heater assembly for elektronenstrahlanalagen |
| 06/12/1990 | US4933108 Metal carrier wire coated with crystals of transition metal compound oxide |
| 06/06/1990 | CN1042802A Scandate cathode |
| 06/05/1990 | US4931691 Electron gun assembly having a reinforced heater tab with locating means |
| 05/29/1990 | US4929418 Method of making a cathode from tungsten powder |
| 05/22/1990 | US4928034 Tungsten matrix impregnated with alkaline earth oxide and coated with iridium-tungsten alloy; stability |
| 05/09/1990 | EP0367195A2 Mim cold-cathode electron emission elements and methods of manufacture thereof |
| 05/09/1990 | EP0366851A1 Low-voltage source for narrow electron/ion beams |
| 05/09/1990 | CN1007911B Processing method and installation used for production of tungsten-cerium electrode material |
| 05/08/1990 | US4924137 Cathode for electron tube |
| 05/08/1990 | US4924136 Holders located immediately under emitting tip |
| 05/02/1990 | EP0365647A1 Expandable dispenser cathode |
| 05/02/1990 | EP0365630A1 Process for manufacturing sources of field-emission type electrons, and application for producing emitter networks. |
| 04/25/1990 | EP0364964A2 Field emission cathodes |
| 04/19/1990 | DE3835043A1 Planar (flat) cathode |
| 04/11/1990 | EP0363055A2 Electron gun and process of producing same |
| 04/11/1990 | EP0248914B1 Liquid metal ion source |
| 04/10/1990 | US4916356 High emissivity cold cathode ultrastructure |
| 04/05/1990 | DE3833604A1 Pulsed particle source on the basis of rapidly repolarisable ferroelectrics |
| 04/04/1990 | EP0362017A1 Device such as diode, triode or flat and integrated cathodoluminescent display device, and manufacturing process |
| 04/04/1990 | EP0361587A1 Electron gun and method of manufacturing an electron gun,and display tube comprising such an electron gun |
| 03/27/1990 | US4912362 Sturdy oxide cathode for cathode ray tube |
| 03/21/1990 | CN1040705A Electron gun assembly having reinforced heater tab with locating means |
| 03/20/1990 | US4910079 Method for the fabrication of an impregnated cathode and cathode obtained thereby |
| 03/08/1990 | DE3924745A1 Field emission diode serving as heavy current switch - has cathode emitting surfaces formed by edges of thin conducting layers on insulating support |
| 03/07/1990 | EP0357358A2 Electron gun assembly having a reinforced heater tab with locating means |
| 03/06/1990 | US4907051 Photocathode |
| 03/06/1990 | US4907042 Device for the multiplication of charge carriers by an avalanche phenomenon and application of the said device to photosensors, photocathodes and infrared viewing devices |
| 03/06/1990 | US4906894 Photoelectron beam converting device and method of driving the same |
| 02/27/1990 | US4904897 Oxide cathode |
| 02/27/1990 | US4904896 Vacuum electron tube having an oxide cathode comprising chromium reducing agent |
| 02/27/1990 | US4904895 Electron emission device |
| 02/14/1990 | EP0354750A2 Image display apparatus and method of fabrication thereof |
| 02/13/1990 | US4900973 Electron tube sealing structure |
| 02/07/1990 | EP0353632A2 Amorphous electron multiplier |
| 02/06/1990 | US4899078 For use in electron microscopes |