| Patents for H01J 23 - Details of transit-time tubes of the types covered by group (3,921) |
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| 01/11/1983 | CA1139444A1 Traveling wave tube with non-reciprocal attenuating adjunct |
| 12/21/1982 | US4365185 Magnetron having three alternatingly connected straps |
| 12/14/1982 | CA1137540A1 Method of producing magnetron anode |
| 11/30/1982 | CA1136691A1 Electron tube with reduced secondary emission |
| 11/23/1982 | US4360760 Electrostatic quadrupole array for focusing parallel beams of charged particles |
| 11/16/1982 | CA1135860A1 Slow-wave circuit for traveling-wave tubes |
| 11/09/1982 | US4358707 Insulated collector assembly for power electronic tubes and a tube comprising such a collector |
| 11/09/1982 | US4358706 Insulated collector for an electronic power tube and a tube equipped with such a collector |
| 11/09/1982 | US4358705 Supporting system for the delay line of a travelling wave tube |
| 11/09/1982 | US4358704 Helix traveling wave tubes with reduced gain variation |
| 11/09/1982 | CA1135324A1 Grid coating for thermionic electron emission suppression |
| 10/13/1982 | EP0062599A2 Slow wave structure for a backward wave oscillator tube |
| 09/21/1982 | US4350928 Crossed field re-entrant beam amplifier |
| 09/21/1982 | US4350926 Hollow beam electron source |
| 09/07/1982 | CA1131362A1 Transit-time tubes |
| 08/31/1982 | US4347419 Traveling-wave tube utilizing vacuum housing as an rf circuit |
| 08/24/1982 | CA1130371A1 Open-circuit magnet structure for cross-field tubes and the like |
| 08/18/1982 | EP0058039A2 Gyrotron device |
| 08/03/1982 | CA1129096A1 Magnetron with continuous magnetic circuit |
| 07/06/1982 | US4338545 Magnetron unit with a magnetic field adjusting means |
| 06/29/1982 | US4337413 Focusing device with permanent magnets for electron tube and electron tube equipped with such a device |
| 06/01/1982 | US4333038 Traveling wave tube devices |
| 05/25/1982 | US4331935 Tuning apparatus for a radio frequency power device |
| 05/19/1982 | EP0052047A1 Thermoelectronic cathode |
| 05/04/1982 | US4328466 Electron bombarded semiconductor device with doubly-distributed deflection means |
| 04/20/1982 | CA1122322A1 Electron beam collector for a microwave power tube |
| 04/13/1982 | US4325003 Magnetron |
| 04/13/1982 | US4324967 Microwave heating apparatus having magnetic coupling for driving the antenna |
| 04/06/1982 | US4323853 Circuit for protecting traveling-wave tubes against faults of a power supply |
| 04/06/1982 | US4323819 Spin-tuned magnetron |
| 04/01/1982 | WO1982001101A1 Magnetron |
| 03/31/1982 | EP0048648A1 Coupled cavities delay line for a travelling-wave tube, and travelling-wave tube comprising such a line |
| 03/23/1982 | US4321505 Zero-bias gridded gun |
| 03/23/1982 | CA1120589A1 Microwave tubes incorporating rare earth magnets |
| 03/02/1982 | US4317336 Electron discharge tube cooling system |
| 02/09/1982 | US4315194 Coupled cavity traveling wave tube with velocity tapering |
| 02/02/1982 | US4313474 Method for the manufacture of a microwave delay line and microwave delay line obtained by this method |
| 01/26/1982 | US4313091 Crankshaft tuning mechanisms for microwave oscillators |
| 01/26/1982 | US4313072 Light modulated switches and radio frequency emitters |
| 01/19/1982 | US4311968 Magnetron having cavity wall vibrated by tuning fork |
| 01/12/1982 | US4310786 Magnetron tube with improved low cost structure |
| 12/22/1981 | US4307322 Coupled cavity traveling wave tube having improved loss stabilization |
| 12/02/1981 | EP0040998A1 Extended interaction oscillator |
| 11/24/1981 | US4302702 Thermionic cathode having an embedded grid, process for its fabrication, and high frequency electron tubes using such a cathode |
| 11/10/1981 | US4300072 Magnetron having an internal capacitor for suppressing leakage of high frequency |
| 11/03/1981 | US4298825 Magnetron device |
| 10/27/1981 | US4297662 Gas-tight-high-frequency permeable window arrangement in a coaxial line, particularly for traveling wave tubes |
| 10/21/1981 | EP0038249A1 Multi-stage depressed collector for a microwave tube |
| 10/20/1981 | US4296385 X-Ray assisted multipactor discharge tuned resonant cavity device |
| 10/20/1981 | US4296355 Magnetron with cooling means |
| 10/20/1981 | US4296354 Traveling wave tube with frequency variable sever length |
| 10/20/1981 | US4295748 Mounting structure for magnetrons |
| 10/20/1981 | US4295595 Method of producing magnetron anode |
| 10/07/1981 | EP0037309A1 Travelling-wave tube with coupled cavities and with periodic permanent magnet focussing, and amplifier unit with such a tube |
| 09/29/1981 | US4292567 In-band resonant loss in TWT's |
| 09/29/1981 | US4292566 Traveling wave tube with a helical delay line |
| 09/29/1981 | CA1109918A1 Tube with bonded cathode and electrode structure and getter |
| 09/15/1981 | US4289992 Microwave device |
| 09/01/1981 | US4287451 Magnetron having improved interconnecting anode vanes |
| 08/25/1981 | US4286239 Gas-tight, high-frequency permeable window arrangement in a coaxial line, particularly for traveling wave tubes |
| 08/25/1981 | US4286191 Delay line with coupled cavities |
| 08/18/1981 | US4284924 Microwave magnetron-type device |
| 08/11/1981 | US4283656 Traveling wave tube devices |
| 08/06/1981 | WO1981002221A1 Reversible periodical magneto-focusing system |
| 08/04/1981 | US4282463 Magnetron with continuous magnetic circuit |
| 08/04/1981 | US4282459 Magnetron |
| 08/04/1981 | US4282458 Waveguide mode coupler for use with gyrotron traveling-wave amplifiers |
| 08/04/1981 | US4282457 Backward wave suppressor |
| 08/04/1981 | CA1106456A1 High gain crossed field amplifier |
| 07/28/1981 | US4281273 Spin tuned magnetron having load sharing bearing arrangements |
| 07/21/1981 | US4280078 Magnetron |
| 07/14/1981 | US4278915 Magnetrons |
| 07/14/1981 | US4278914 Diamond supported helix assembly and method |
| 07/07/1981 | US4277723 Symmetrical magnetron with output means on center axis |
| 07/07/1981 | US4277721 Multistage depressed collector for dual mode operation |
| 06/17/1981 | EP0030328A1 Multicavity klystron |
| 06/16/1981 | US4274032 High power liquid cooled double strapped vane type magetron |
| 06/11/1981 | WO1981001628A1 Klystron |
| 05/26/1981 | US4270070 Traveling wave tube |
| 05/26/1981 | US4270069 Traveling wave tube and method of making same |
| 05/20/1981 | EP0028954A1 Thermionic cathode, process for manufacturing it and electron tube incorporating such a cathode |
| 05/19/1981 | US4268778 Traveling wave device with unific slow wave structure having segmented dielectric support |
| 04/28/1981 | US4264843 Magnetron filament assembly |
| 04/28/1981 | US4264842 Helix type traveling-wave tubes with auxiliary selective shielding provided by conductive elements applied upon dielectric supports |
| 04/21/1981 | US4263532 Microwave delay line |
| 04/21/1981 | US4263531 Electron beam-semiconductor diode hybrid device for phase control |
| 04/21/1981 | US4263528 Grid coating for thermionic electron emission suppression |
| 04/21/1981 | CA1099817A1 Helix traveling wave tubes with resonant loss |
| 04/14/1981 | CA1099348A1 Method and apparatus for reducing noise in crossed- field amplifiers |
| 03/24/1981 | US4258286 Coupled cavity type traveling wave tube |
| 03/18/1981 | EP0025120A1 Travelling wave tube with a ring and bar structure |
| 03/17/1981 | US4256990 Cooling system for tunable microwave generator |
| 03/11/1981 | EP0024591A1 Travelling-wave tube, in particular high-power travelling-wave tube |
| 03/11/1981 | EP0024590A1 Slow-wave structure for a travelling-wave tube with periodic magnetic focussing |
| 03/10/1981 | CA1097401A1 Switching regulator |
| 03/03/1981 | US4254357 Multi-arrayed micro-patch emitter with integral control grid |
| 02/10/1981 | US4250430 Multi-stage collector for transit-time tubes |
| 02/04/1981 | EP0023376A1 Electron discharge tube cooling system |
| 01/27/1981 | US4247828 Reciprocating piston tuning mechanism for a microwave oscillator |
| 01/13/1981 | US4245058 Polycarbonate compositions |