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