| 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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| 08/20/1981 | WO1981002364A1 Direct heating grid cathode for electron beam tubes and method of making it |
| 08/18/1981 | US4283817 Method for bonding electrode plates in a multicell x-ray detector |
| 08/11/1981 | CA1106909A1 Method for joining an anode target comprising tungsten to a graphite substrate |
| 07/21/1981 | US4279784 Thermionic emission cathodes |
| 07/09/1981 | WO1981001937A1 Device for stabilization of electron beam current |
| 06/23/1981 | US4275347 Precision cathode current regulator |
| 06/23/1981 | US4275123 In wire or sheet form |
| 06/17/1981 | EP0030465A1 Electron beam exposing apparatus |
| 06/16/1981 | US4274030 Thermionic cathode |
| 06/16/1981 | US4273683 Oxide cathode and process for production thereof |
| 06/16/1981 | US4273561 Ultrasharp polycrystalline diamond edges, points, and improved diamond composites, and methods of making and irradiating same |
| 06/09/1981 | US4272699 Electron impact ion source with field emission cathode |
| 05/20/1981 | EP0028954A1 Thermionic cathode, process for manufacturing it and electron tube incorporating such a cathode |
| 05/19/1981 | US4268775 Cathode-heater assembly and support structure therefor |
| 05/19/1981 | CA1101479A1 Electron tube cathode and method for producing the same |
| 05/05/1981 | US4265666 Lanthanum, strontium and/or barium hexaboride |
| 04/28/1981 | US4263701 Method of mounting the support for a fast warm-up cathode |
| 04/21/1981 | US4263528 Grid coating for thermionic electron emission suppression |
| 04/15/1981 | EP0026949A1 Secondary-emission electrode, particularly for a photomultiplier |
| 04/08/1981 | EP0026427A1 Electron gun |
| 04/07/1981 | US4260665 Nickel-tungsten alloy, reducing impurity, alkaline earth oxide, platinum or rhenium, antipeeling |
| 04/01/1981 | EP0025946A1 Heating element for indirectly heated cathode |
| 03/31/1981 | US4259678 Semiconductor device and method of manufacturing same, as well as a pick-up device and a display device having such a semiconductor device |
| 03/31/1981 | CA1098578A1 Cathode structure and method of operating the same |
| 03/24/1981 | US4258283 Cathode for electron emission |
| 03/10/1981 | US4255690 Cathode heating apparatus for an electronic power tube |
| 03/03/1981 | CA1096973A1 X-ray detector |
| 02/24/1981 | US4253038 Light source excited by high frequency for Zeeman effect atomic absorption analysis |
| 02/17/1981 | US4251746 Direct-heated cathode structure |
| 02/10/1981 | US4250429 Supports of foamed carbon having a net-like structure and containing emissive material; wear resistance |
| 01/14/1981 | EP0022201A1 Cathode assembly |
| 01/13/1981 | CA1093626A1 Image tube with conditioned input screen |
| 12/23/1980 | CA1092226A1 Solar energy converter |
| 12/16/1980 | US4240005 Apparatus for the generation of primary electrons from a cathode |
| 12/16/1980 | CA1091748A1 Electron tube cathode with porous foamed carbon body |
| 12/10/1980 | EP0020142A1 Spectral radiation sources of the hollow cathode type |
| 12/10/1980 | EP0019992A1 Thermionic electron emitters and methods of making them |
| 12/09/1980 | CA1091291A1 Method of manufacturing a dispenser cathode and dispenser cathode manufactured according to said method |
| 11/11/1980 | US4233539 Aluminum carbide or boride or boron carbide coating on copper electrode |
| 10/28/1980 | CA1088294A1 Polymeric compositions for manufacture of secondary electron multiplier tubes and method for manufacture thereof |
| 10/07/1980 | US4227116 Zero-bias gridded gun |
| 09/16/1980 | US4222775 Base metal plate materials for directly heated oxide cathodes |
| 09/16/1980 | CA1085907A1 Thermionic electron source with bonded control grid |
| 09/02/1980 | US4220891 Directly heated cathode for electron tube |
| 09/02/1980 | US4220889 Cathode for an electron gun |
| 08/19/1980 | US4218633 Hydrogen hollow cathode ion source |
| 08/05/1980 | CA1083266A1 Field emission cathode and method for preparation thereof |
| 07/29/1980 | US4215180 Oxide-coated cathodes for electron tubes |
| 07/22/1980 | US4214025 Mesh electrodes and method of making them |
| 07/15/1980 | US4213073 Rod pinch diode |
| 07/09/1980 | EP0013201A1 Directly heated cathode and high frequency electron tube comprising such a cathode |
| 07/08/1980 | CA1081313A1 Glassy carbon grid-like electrodes and method of manufacturing same |
| 07/08/1980 | CA1081312A1 Field emission device and method of forming same |
| 07/01/1980 | CA1080778A1 Multicathode electron gun with equal temperature dependent changes in cathode-control grid spacings |
| 06/25/1980 | EP0012427A1 Cathode mounting |
| 06/17/1980 | US4208208 Rhenium and tungsten |
| 05/27/1980 | US4205250 Electronic tubes |
| 05/14/1980 | EP0010793A1 Method for securing the support of a quick-heating cathode |
| 04/29/1980 | US4200555 Low work function hexaboride electron source |
| 04/22/1980 | CA1076270A1 Means and method for controlling the neutron output of a neutron generator tube |
| 04/02/1980 | EP0009261A1 Storage cathode, particularly metal capillary cathode |
| 04/01/1980 | US4196257 Bi-alkali telluride photocathode |
| 03/25/1980 | US4195246 Support structure for directly-heated cathode of cathode ray tube |
| 03/11/1980 | US4193013 Cathode for an electron source and a method of producing the same |
| 03/11/1980 | US4192064 High strength extended leakage path ceramic tube wall for image intensifier and method of manufacture |
| 02/21/1980 | WO1980000282A1 Zero-bias gridded gun |
| 02/19/1980 | US4189618 Electromagnetic shielding envelopes from wound glassy metal filaments |
| 02/19/1980 | CA1072169A1 Flat thermionic cathode with plural heating elements |
| 02/06/1980 | EP0007701A1 Electromagnetic shielding envelopes from wound glassy metal filaments |
| 02/05/1980 | CA1071299A1 Method of manufacturing grid electrodes for electron tubes and grid electrode manufactured according to the method |
| 01/22/1980 | US4185223 Electron gun structure |
| 01/15/1980 | US4184100 Nickel-chromium alloy sleeve |
| 01/09/1980 | EP0006785A1 Cathode heating device for electron power tube and emitter including such a device |
| 01/09/1980 | EP0006267A1 Method of manufacturing a channel plate structure |
| 01/08/1980 | US4182973 Electric discharge tube |
| 12/25/1979 | US4180740 X-ray intensifying screens |
| 12/11/1979 | US4178531 CRT with field-emission cathode |
| 12/11/1979 | US4178530 Electron tube with pyrolytic graphite heating element |
| 12/04/1979 | US4177401 Low pressure metal vapor discharge lamp with tubular member and magnetic means |
| 11/27/1979 | US4176293 Thermionic cathode heater having reduced magnetic field |
| 11/14/1979 | EP0005279A2 Hot cathode |
| 10/30/1979 | CA1065504A1 Ion detection electrode arrangement |
| 10/03/1979 | EP0004424A1 Thermionic cathode |
| 09/25/1979 | US4168565 Method for manufacturing thermionic cathode |
| 09/25/1979 | CA1063244A1 Resonant cavity magnetron having a helical cathode |
| 09/18/1979 | US4168213 Field emission device and method of forming same |
| 09/11/1979 | US4167690 Cathode and method of operating the same |
| 09/05/1979 | EP0003937A2 Cathode for an electron gun |
| 08/21/1979 | US4165473 Electron tube with dispenser cathode |
| 08/14/1979 | US4164680 Polycrystalline diamond emitter |
| 08/07/1979 | US4163918 Electron beam forming device |
| 07/24/1979 | US4162115 Method of fabricating image input screen |
| 06/26/1979 | US4159440 Dielectric guide for electron beam transport |
| 06/19/1979 | US4158790 High intensity atomic spectral lamp with interchangeable cathode |
| 05/15/1979 | US4155026 Mesh electrodes |
| 05/15/1979 | US4155008 Vapor coated emissive cathode |
| 04/24/1979 | US4151441 Cathode support means in electron gun structure of a cathode ray tube |
| 04/24/1979 | US4151440 Cathode heater assembly for electron discharge device |
| 04/17/1979 | US4150319 Ion gating grid |
| 04/17/1979 | US4150318 Low mass, indirectly heated, fast warm-up heater-cathode assembly |