| 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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| 09/13/1983 | US4404492 Cathode structure for cathode ray tubes and method for producing same |
| 09/07/1983 | EP0087826A2 Thermionic cathode and manufacturing method |
| 09/06/1983 | US4403169 Cathode suspension means for cathode ray tube electron gun |
| 08/30/1983 | US4401919 Indirectly heated Wehnelt cathode |
| 08/23/1983 | US4400648 Impregnated cathode |
| 08/23/1983 | US4400647 Cathode structure for cathode ray tubes and method |
| 08/09/1983 | US4398132 Electron beam current stabilizing device |
| 08/02/1983 | US4396853 Oxygenated photosensitive screen |
| 07/26/1983 | CA1150763A1 Method of fabricating a dispenser cathode |
| 07/26/1983 | CA1150760A1 Discharge electric lamp having barium and cesium interoxides in the pores of sintered heavy metal electrodes |
| 07/13/1983 | EP0083459A1 Television camera tube |
| 07/12/1983 | US4393328 Hot cathode, its production process and electron tube incorporating such a cathode |
| 06/15/1983 | EP0081360A1 Method of making an electrode assembly |
| 06/15/1983 | EP0081359A1 Method of making an assembly of electrodes |
| 06/15/1983 | EP0081270A2 Process for producing a thermionic cathode, and thermionic cathode manufactured by this process |
| 06/14/1983 | US4388560 Filament dispenser cathode |
| 06/14/1983 | US4388551 Quick-heating cathode structure |
| 06/09/1983 | WO1983002035A1 Method of making an electrode assembly |
| 06/09/1983 | WO1983002034A1 Method of making an assembly of electrodes |
| 05/25/1983 | EP0079660A1 Cathode-ray tube and cathode unit for such a cathode-ray tube |
| 05/11/1983 | EP0078583A1 Input photo cathode for an electronic tube comprising a semiconductor device as transmitting photo emitter |
| 05/03/1983 | US4382206 Directly heated type oxide cathode |
| 04/12/1983 | US4379980 Quick operating cathode |
| 04/12/1983 | US4379979 Controlled porosity sheet for thermionic dispenser cathode and method of manufacture |
| 04/06/1983 | EP0075708A2 Direct heated cathode with filament heating control in electron beam equipments and method for operating the same |
| 04/05/1983 | US4379250 Field emission cathode and method of fabricating the same |
| 04/05/1983 | CA1144221A1 Hollow cathode lamp with improved stability alloy for the cathode |
| 03/29/1983 | US4378385 Method of making oxygen ion conducting solid electrolyte device |
| 03/22/1983 | US4377766 Frame for unit module of a vacuum-fluorescent display |
| 03/02/1983 | EP0073031A2 Field emission assembly and manufucturing process therefor |
| 03/01/1983 | CA1142258A1 Zero-bias gridded gun |
| 03/01/1983 | CA1142216A2 Mercury arc discharge lamp with altered isotopic distribution of mercury |
| 02/15/1983 | CA1141420A1 Method and apparatus for electrolytic sharpening of a filament |
| 02/01/1983 | US4371809 Integral-shadow-grid controlled-porosity dispenser cathode |
| 02/01/1983 | US4370797 Method of semiconductor device for generating electron beams |
| 01/25/1983 | US4370588 Cathode assembly |
| 01/18/1983 | US4369392 Sintered product of alkaline earth metal compound and high melting metal and reducible metal impurity as a base material |
| 01/18/1983 | CA1139827A1 Oxide cathode and method of manufacturing powder metallurgical nickel for such a cathode |
| 01/18/1983 | CA1139821A1 Electron multipliers with discrete dynode separating elements |
| 01/05/1983 | EP0068111A2 Method of forming a cathode structure |
| 12/15/1982 | EP0066926A1 Semiconductor electron emitting device whose active layer has a doping gradient |
| 12/15/1982 | EP0066705A1 Single crystal lanthanum hexaboride cathode suitable for thermionic emission of a shaped electron beam with uniform intensity distribution |
| 12/14/1982 | US4363995 Cathode of single crystal lanthanum hexaboride |
| 12/09/1982 | WO1982004350A1 Filament dispenser cathode |
| 12/08/1982 | EP0066080A1 Single crystal lanthanum hexaboride cathode for thermionic emission of an electron beam having high brightness |
| 11/30/1982 | CA1136691A1 Electron tube with reduced secondary emission |
| 11/16/1982 | US4359667 Convectively cooled electrical grid structure |
| 11/16/1982 | US4359666 Cylindrical cathode with segmented electron emissive surface and method of manufacture |
| 11/16/1982 | US4359664 Method of mounting a cathode and eyelet for use therewith |
| 11/09/1982 | CA1135324A1 Grid coating for thermionic electron emission suppression |
| 11/03/1982 | EP0063840A1 High tension vacuum tube, particularly X ray tube |
| 10/27/1982 | EP0063474A2 Thermionic cathode and process for preparing the same |
| 10/19/1982 | US4355259 Heater for an indirectly heated cathode |
| 09/28/1982 | US4352117 Electron source |
| 09/21/1982 | US4350920 Dispenser cathode |
| 09/14/1982 | US4349766 Directly heated cathode for electron tube |
| 09/14/1982 | CA1131795A1 Cold cathode semiconductor device |
| 09/08/1982 | EP0059491A1 Oxide cathode |
| 09/07/1982 | CA1131008A1 Fluorescent lamp |
| 08/24/1982 | US4346325 Having a cathode of a single crystal of lanthanum hexaboride |
| 08/17/1982 | US4345182 Electrode having spiral-shaped electrically conducting regions therein useful as an anode in electron beam discharge devices |
| 08/17/1982 | US4345181 Edge effect elimination and beam forming designs for field emitting arrays |
| 07/28/1982 | EP0056749A2 Directly heated cathode and method of making it |
| 07/13/1982 | US4339691 Discharge apparatus having hollow cathode |
| 07/06/1982 | US4338542 Directly heated cathode assembly |
| 06/16/1982 | EP0053867A1 Thermionic electron emitters and methods of making them |
| 06/01/1982 | US4333035 Areal array of tubular electron sources |
| 05/19/1982 | EP0052047A1 Thermoelectronic cathode |
| 04/13/1982 | US4325084 Semiconductor device and method of manufacturing same, as well as a pick-up device and a display device having such a semiconductor device |
| 04/13/1982 | US4325000 Low work function cathode |
| 04/13/1982 | US4324999 Zirconium and oxygen doped tungsten, heating to diffuse from ring -shaped surface, low work function |
| 04/13/1982 | CA1121899A1 Electromagnetic shielding envelopes from wound glassy metal filaments |
| 04/13/1982 | CA1121854A1 High pressure sodium vapour discharge lamp with electron emissive electrodes |
| 03/23/1982 | US4321505 Zero-bias gridded gun |
| 03/16/1982 | US4319889 Ultrasharp diamond edges and points and methods of making same by precision micro-irradiation techniques |
| 02/17/1982 | EP0045932A2 Method for shortening the heatingtime of an indirectly heated cathode |
| 02/02/1982 | US4313854 Oxide-coated cathode for electron tube |
| 01/19/1982 | US4311941 Thermionic cathode supporting device |
| 01/19/1982 | US4311939 Photomultipliers; measuring instruments/radiation/ |
| 01/19/1982 | US4311743 Semiconductor-glass composite material and method for producing it |
| 01/19/1982 | CA1116389A1 X-ray intensifying screens |
| 01/12/1982 | US4310777 Base plate of tungsten, zirconium and nickel alloy for color televisions |
| 01/12/1982 | US4310775 Dispenser cathode, particularly a metal capillary cathode |
| 01/12/1982 | US4310603 Alkaline earth oxide pellet impregnated with a protective coating and a perforated refractory foil |
| 12/29/1981 | US4308178 Thermionic cathode emitter coating |
| 12/09/1981 | EP0041119A1 Cold electron emission device |
| 12/01/1981 | US4303930 Semiconductor device for generating an electron beam and method of manufacturing same |
| 11/24/1981 | US4302702 Thermionic cathode having an embedded grid, process for its fabrication, and high frequency electron tubes using such a cathode |
| 11/24/1981 | US4302701 Directly heated cathode for an electron tube with coaxial electrode design |
| 11/17/1981 | US4301369 Semiconductor ion emitter for mass spectrometry |
| 11/03/1981 | US4298814 Directly heated type cathode assembly |
| 10/27/1981 | US4297612 Electron gun structure |
| 10/20/1981 | US4296351 Tungsten halogen lamp having lead-in wire comprising tantalum alloy |
| 10/13/1981 | US4295077 Circumferentially apertured cylindrical grid for electron tube |
| 10/13/1981 | CA1110689A1 Electron tube |
| 10/06/1981 | US4293793 Fluorescent display tube |
| 09/22/1981 | US4291252 Electron tube cathode |
| 09/08/1981 | US4288717 Thermionic cathode apparatus |
| 09/01/1981 | US4286373 Method of making negative electron affinity photocathode |
| 08/26/1981 | EP0034512A2 Heating element for indirectly heated cathodes, process for manufacturing such an element and indirectly heated cathode comprising the same |