| 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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| 01/18/1989 | EP0299126A1 Impregnated thermionic cathode |
| 01/17/1989 | CA1249013A1 Image detector for camera operating in "day-night" mode |
| 01/17/1989 | CA1249012A1 Electron-beam device and semiconductor device for use in such an electron-beam device |
| 01/17/1989 | CA1249011A1 Semiconductor cathode with increased stability |
| 01/11/1989 | EP0298817A1 Process and device for the production of electrons using a field coupling and the photoelectric effect |
| 01/11/1989 | EP0298558A1 Method of manufacturing a scandat cathode |
| 01/10/1989 | US4797593 Cathode for electron tube |
| 01/03/1989 | US4795940 Large area directly heated lanthanum hexaboride cathode structure having predetermined emission profile |
| 01/03/1989 | CA1248059A1 Packing for a consumer article |
| 12/14/1988 | EP0294401A1 Fast warm-up cathode arrangement. |
| 12/06/1988 | US4789807 Electron gun assembly having a reinforced heater tab |
| 11/09/1988 | EP0290026A1 Electron emission device |
| 11/08/1988 | US4783613 Emissive barium compound; tungsten and scandium and oxides in thin film layer; porous refractory |
| 11/02/1988 | EP0289277A2 An electron beam head |
| 11/02/1988 | EP0288616A1 Field emission device |
| 10/26/1988 | EP0287774A2 Thermionic hair-needle cathode |
| 10/25/1988 | US4780684 Microwave integrated distributed amplifier with field emission triodes |
| 10/19/1988 | EP0287067A2 Electron emission device |
| 09/27/1988 | US4774414 Liquid metal ion source |
| 09/21/1988 | EP0151588B1 Electron emission system |
| 09/14/1988 | EP0282040A1 Dispenser cathode, especially metal capillary cathode, for electric discharge vessels |
| 09/14/1988 | EP0018402B1 Zero-bias gridded gun |
| 08/25/1988 | WO1988006345A1 Very high speed integrated microelectronic tubes |
| 08/23/1988 | US4766340 Semiconductor device having a cold cathode |
| 08/17/1988 | EP0278494A2 Hollow cathode gun and deposition device for ion plating process |
| 08/17/1988 | EP0278405A2 Electron emission element and method of manufacturing the same |
| 08/09/1988 | US4763043 P-N junction semiconductor secondary emission cathode and tube |
| 08/02/1988 | CA1240003A1 Digital cathode current control loop |
| 07/27/1988 | EP0275769A1 Photoelectronic transducer using a multiple microtip emissive cathode |
| 07/26/1988 | US4760306 Electron emitting filaments for electron discharge devices |
| 07/20/1988 | EP0274940A1 Device with avalanche charge carrier multiplication, and its use in photodetectors, photocathodes and infrared imagers |
| 07/05/1988 | US4755720 Discharge electrode with corrosion-proof structure |
| 06/29/1988 | EP0272881A2 Indirectly heated cathode structure for electron tubes |
| 06/23/1988 | DE3807324A1 Incandescent-cathode material for a replenishment reaction cathode for electron tubes, and method for preparing said material |
| 06/22/1988 | EP0272178A1 Spin-polarized electron source using a multiple microtip emission cathode, use in electron matter or electron particle interaction physics, plasma physics, electron microscopy |
| 06/21/1988 | US4752713 Ceramic body with metal coating for electrodes |
| 06/16/1988 | WO1988004468A1 Fast warm-up cathode arrangement |
| 06/15/1988 | CN87108075A Cathode-heater for teletube |
| 06/15/1988 | CN86107507A Ionic shell protective technique for aluminium cathode |
| 06/14/1988 | US4751423 Photocathode having a low dark current |
| 06/07/1988 | US4749903 High-performance photocathode |
| 05/17/1988 | US4745333 Auxiliary electrodes in fluorescent lamps for preventing irregular light flickering |
| 05/17/1988 | US4745326 Method of manufacturing integral shadow gridded controlled porosity, dispenser cathodes |
| 05/17/1988 | US4745325 High resistance wire wound with low resistance wire |
| 04/19/1988 | US4739213 Electron tube with support for pyrolytic graphite electrode |
| 04/13/1988 | EP0263483A1 Hot cathode in wire form |
| 04/13/1988 | CN87106900A Photo-cathode conducting substrate |
| 04/13/1988 | CN86106604A Electronic microscope capable of extending kinds and range of samples examined and observing negative electrons |
| 04/12/1988 | US4737680 Gridded electron gun |
| 04/12/1988 | US4737679 Impregnated cathode |
| 04/12/1988 | US4737623 Canal structure of an electron multiplier |
| 04/06/1988 | EP0262676A2 Electron emission device |
| 04/05/1988 | US4736135 Electron emission device provided with a reservoir containing material reducing the electron work function |
| 04/05/1988 | US4735591 Firing in hydrogen furnace to melt impregnant |
| 03/30/1988 | EP0261720A1 Method of contacting semiconductor cathodes and of manufacturing an electron tube provided with such a cathode |
| 03/29/1988 | US4734073 Machining of surface gives sharp, symmetrical microscopic projections |
| 03/22/1988 | CA1234411A1 Semiconductor device for producing an electron beam |
| 03/16/1988 | EP0259878A2 Electron emission element |
| 03/16/1988 | CN87106151A Dipping type cathode and its manufacturing process |
| 03/02/1988 | EP0257528A1 Photo cathodes for electron image projection |
| 03/02/1988 | EP0257460A2 Solid-state electron beam generator |
| 03/01/1988 | US4728852 Device for fixing a pyrolytic graphite grid onto the base of an electron tube |
| 03/01/1988 | US4728850 Mounting means for mounting spiral wire cathodes |
| 02/23/1988 | US4727292 High voltage power supply fault isolation system |
| 02/16/1988 | US4725758 Photocathode |
| 02/03/1988 | CN85102649A Ceramic sealing device for lamp with high-voltage discharge |
| 02/02/1988 | US4722852 Device for electron emission including device for providing work function reducing layer and method of applying such a layer |
| 01/26/1988 | US4721891 Axial flow plasma shutter |
| 01/26/1988 | US4721885 Very high speed integrated microelectronic tubes |
| 01/26/1988 | CA1232086A1 Device for electron emission provided with an electron-emitting body having a layer of a material reducing the work function and method of applying such a layer of a material reducing the work function |
| 01/07/1988 | EP0251328A2 Electron emitting device and process for producing the same |
| 01/05/1988 | US4717855 Dual-cathode electron emission device |
| 12/23/1987 | EP0249968A2 Electron emitting apparatus |
| 12/22/1987 | US4714863 Vibration damping means for the line cathodes of an image display apparatus |
| 12/16/1987 | EP0249254A1 Semiconductor device for generating an electron current |
| 12/16/1987 | EP0248914A1 Liquid metal ion source |
| 12/09/1987 | EP0248470A1 Method of manufacturing a dispenser cathode |
| 12/09/1987 | EP0248417A2 Impregnated cathode |
| 11/25/1987 | EP0121564B1 Method for fabricating a dispenser-reservoir housing for a dispenser cathode |
| 11/24/1987 | US4709185 Device for electron emission including device for providing work function-reducing layer and method of applying such a layer |
| 11/19/1987 | EP0245982A2 Directly heated cathodes |
| 11/17/1987 | CA1229430A1 Electron emission system |
| 11/10/1987 | US4705992 System for stabilizing cathode emissions with an in-line gun cathode ray tube |
| 10/21/1987 | EP0241956A1 Semiconductor device for generating an electron current |
| 10/20/1987 | CA1228429A1 Vitreous semiconductor supporting structure and device realized with such a structure |
| 09/23/1987 | EP0238083A2 Display device and method of driving the same |
| 09/22/1987 | US4695760 Self-aligned double grids for vacuum tubes |
| 09/16/1987 | EP0116083B1 Low voltage field emission electron gun |
| 08/18/1987 | US4687970 Digital cathode current control loop |
| 08/18/1987 | US4687964 Apparatus for mounting a field emission cathode |
| 08/18/1987 | US4687922 Image detector operable in day or night modes |
| 08/11/1987 | US4686556 Photocathode for the infra-red range |
| 08/11/1987 | CA1225229A1 Alloys for liquid metal ion sources |
| 08/05/1987 | EP0230818A1 Photo cathode with internal amplification |
| 08/04/1987 | US4684845 Magnetron cathode assembly with grooved insulating spacer |
| 08/04/1987 | US4684844 Liquid cooled stationary anode tubes |
| 08/04/1987 | US4684204 Electron source assembly with a replaceable filament ribbon |
| 07/28/1987 | US4683399 Silicon vacuum electron devices |
| 07/28/1987 | US4683163 Vitreous semiconductor supporting structure and device realized with such a structure |
| 07/21/1987 | US4682074 Electron-beam device and semiconductor device for use in such an electron-beam device |