| Patents for H01J 23 - Details of transit-time tubes of the types covered by group (3,921) |
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| 09/19/1995 | US5451752 Noise shielding apparatus for magnetron of microwave oven |
| 09/17/1995 | CA2142923A1 Electron gun arrangements |
| 09/13/1995 | CN1108430A Linear electron beam tube arrangements |
| 09/12/1995 | US5450041 Quasi-optical oscillator using ring-resonator feedback |
| 09/12/1995 | US5449972 Low-torque magnetron tuning device |
| 08/31/1995 | WO1995023426A1 Compact microwave source for exciting electrodeless lamps |
| 08/31/1995 | CA2183988A1 Compact microwave source for exciting electrodeless lamps |
| 08/17/1995 | WO1995022038A1 Fluid flow heat exchanger, particularly for electron tubes |
| 08/16/1995 | EP0667033A1 Method of increasing and/or ensuring the efficiency of a gyrotron, and a gyrotron designed to carry out the method |
| 08/08/1995 | US5440202 Electron beam device having a direct current feed with switching stages therein |
| 08/02/1995 | EP0407558B1 Amplifier or oscillator device operating at ultrahigh frequency |
| 08/01/1995 | US5438308 Yokeless permanent magnet solenoids |
| 07/25/1995 | US5436525 Highly depressed, high thermal capacity, conduction cooled collector |
| 07/25/1995 | US5436524 Orthogonally interdigitated shielded serpentine travelling wave cathode ray tube deflection structure |
| 07/18/1995 | US5433640 Cylinder cathodes of nickel alloys and anode vanes, cleaning cylinders and spraying emissive material |
| 07/11/1995 | US5432405 Magnetron device having an antenna shaped electrode |
| 06/28/1995 | EP0660363A1 Linear-beam cavity circuits with non-resonant RF loss slabs |
| 06/28/1995 | CN1104414A Electron beam tubes |
| 06/21/1995 | EP0658913A1 Cathode ray tube with an input activity resonator |
| 06/21/1995 | CN1103992A Electron beam tubes |
| 06/20/1995 | US5426351 Heater coil for electron tube |
| 06/14/1995 | CN1103733A Electron beam tube arrangements |
| 06/06/1995 | US5422596 High power, broadband folded waveguide gyrotron-traveling-wave-amplifier |
| 06/06/1995 | US5422542 Low power pulsed anode magnetron for improving spectrum quality |
| 06/06/1995 | US5422541 Klystron tuning mechanism having means for changing the pitch of an internal threaded portion |
| 06/06/1995 | US5422540 High power klystron tuning mechanism having means for detecting non-synchronous tuning channel conditions |
| 06/01/1995 | DE4340550A1 Elektronenstrahlröhre mit einem Eingangsresonatorhohlraum Cathode ray tube with a Eingangsresonatorhohlraum |
| 05/30/1995 | US5420478 Depressed collector for sorting radial energy level of a gyrating electron beam |
| 05/24/1995 | EP0537327B1 Microwave tube with a frequency-tunable cavity resonator |
| 05/23/1995 | US5418428 Waveguide system with support for magnetrons |
| 05/23/1995 | US5418427 Internally cooled forward wave crossed field amplifier anode vane |
| 05/23/1995 | US5418425 Multistage collector for electron-beam tubes having collector electrodes indirectly connected by collar members |
| 05/10/1995 | EP0652580A1 Linear electron beam tube arrangements |
| 05/02/1995 | US5412282 Radiation fin structure of a magnetron |
| 05/02/1995 | US5412281 Phase smoothing cathode for reduced noise crossed-field amplifier |
| 04/26/1995 | EP0414810B1 Coupled cavity circuit with increased iris resonant frequency |
| 04/12/1995 | EP0648066A1 Noise shielding apparatus for magnetron of microwave oven |
| 04/12/1995 | EP0647962A1 Physical vapor deposition employing ion extraction from a plasma |
| 04/11/1995 | US5406167 Apparatus for shielding unnecessary electromagnetic waves in a magnetron for a microwave oven |
| 03/29/1995 | CN1028064C Device for coupling microwave energy |
| 03/28/1995 | US5402032 Traveling wave tube with plate for bonding thermally-mismatched elements |
| 03/21/1995 | US5399938 Anode assembly for a magnetron covered by an oxygen free copper film |
| 03/21/1995 | US5399937 Starfish bunched electron beam converter |
| 03/21/1995 | US5399935 Electron gun with reduced heating of the grid |
| 03/15/1995 | CN1100234A Electron beam tubes |
| 03/09/1995 | DE4431337A1 Röhre mit induktiver Auskopplung mit mehrstufigen Bremsfeldkollektor-Elektroden Tube with inductive coupling with multi-stage depressed collector electrodes |
| 02/28/1995 | US5394060 Inclined getter structure for a magnetron |
| 02/23/1995 | DE4328232A1 Electron-beam tube (cathode-ray tube), in particular travelling-wave tube |
| 02/21/1995 | USRE34863 High impedance circuit for injection locked magnetrons |
| 02/21/1995 | US5391964 Magnetron yoke joint having bent joining lugs |
| 02/21/1995 | US5391963 Traveling wave tube with thermally-insensitive loss button structure |
| 02/15/1995 | CN1098817A Electron beam tubes |
| 02/14/1995 | US5389854 Collector ion expeller |
| 02/09/1995 | WO1995004366A1 Device for attenuating interfering waves in an electron tube and electron tube comprising same |
| 02/07/1995 | US5387841 Magnetron having an anode with cooling channels |
| 02/07/1995 | US5387547 Process for adjusting the impedance of a microwave conductor using an air bridge |
| 02/02/1995 | WO1995003616A1 Magnetic circuit |
| 01/31/1995 | US5384951 Method of making anisotropically loaded helix assembly for a traveling-wave tube |
| 01/26/1995 | DE4423532A1 Method for producing a screw-shaped line with wings coupled thereto, line which is produced using the method, and electron tube which contains such a line |
| 01/06/1995 | CA2099814A1 Integral polepiece rf amplification tube for millimeter wave frequencies |
| 01/04/1995 | EP0632481A1 Electron beam tubes |
| 12/28/1994 | EP0593768A4 Magnetron. |
| 12/27/1994 | US5376864 Shielded serpentine traveling wave tube deflection structure |
| 12/20/1994 | US5374873 Gyrotron apparatus having vibration absorbing means |
| 12/14/1994 | CN2185474Y High-frequency window for millimeter wave tube |
| 12/08/1994 | WO1994024690A3 Electron beam tubes |
| 12/08/1994 | DE4418649A1 Elektronenstrahlröhren CRT |
| 12/07/1994 | EP0627757A2 High frequency vacuum tube with closely spaced cathode and non-emissive grid |
| 12/01/1994 | DE4417803A1 Elektronenstrahlröhren CRT |
| 11/29/1994 | US5369335 Coupling device for antenna feeder in a magnetron comprising engaged male and female members |
| 11/17/1994 | EP0624893A2 Magnet arrangements |
| 11/08/1994 | US5363016 Cooled reentrant TWT ladder circuit having axially raised cooling bars |
| 10/27/1994 | WO1994024690A2 Electron beam tubes |
| 10/20/1994 | DE4411944A1 Elektronenstrahlröhrenanordnungen Cathode ray tube assemblies |
| 10/18/1994 | US5357168 Magnetron having a cathode with tapered end shields |
| 10/06/1994 | DE4411405A1 Fokussiersystem mit periodischen Permanentmagneten für Elektronenstrahl Focusing with periodic permanent magnet for electron beam |
| 09/29/1994 | DE4328557C1 Method for compensating for ageing phenomena of a tube and an arrangement |
| 09/27/1994 | US5351166 Cooling apparatus of magnetrons |
| 09/27/1994 | US5350969 Cathode heater and cathode assembly for microwave power tubes |
| 09/27/1994 | US5350905 Magnetron for a microwave oven |
| 09/20/1994 | US5348934 Secondary emission cathode having supeconductive oxide material |
| 09/06/1994 | US5345465 Apparatus and method for guiding an electric discharge |
| 08/23/1994 | US5341066 Anisotropically loaded helix assembly for a traveling-wave tube |
| 08/10/1994 | EP0609838A2 Helical Slow-Wave Circuit Assembly |
| 08/02/1994 | US5335238 Apparatus and method for guiding an electric discharge with a magnetic field |
| 08/02/1994 | US5334910 Interlocking periodic permanent magnet assembly for electron tubes and method of making same |
| 08/02/1994 | US5334909 Microwave tube collector assembly including a chromium oxide film |
| 08/02/1994 | US5334907 Cooling device for microwave tube having heat transfer through contacting surfaces |
| 07/26/1994 | US5332948 X-z geometry periodic permanent magnet focusing system |
| 07/26/1994 | US5332947 Integral polepiece RF amplification tube for millimeter wave frequencies |
| 07/26/1994 | US5332945 Pierce gun with grading electrode |
| 07/19/1994 | US5331248 Cooling apparatus of magnetron |
| 07/13/1994 | CN1089390A Medical microwave magnetron and microwave therapeutic equipment with multi-way output |
| 07/06/1994 | EP0604490A1 Amplifier |
| 07/06/1994 | CN1089061A Structure for supporting of cathode of magnetic controlling tube |
| 07/05/1994 | US5327094 Jitter suppression in crossed-field amplifier by use of field emitter |
| 06/28/1994 | US5325266 Cooling device for a megnetron |
| 06/22/1994 | EP0364574B1 Plasma-assisted high-power microwave generator |
| 06/21/1994 | US5323086 Klystron having a vacuum gate valve disposed in a drift tube |
| 06/16/1994 | DE4342071A1 TWT amplifier with collector operated below equipment potential - includes interaction circuit with delay stage and coupled cavity resonator ahead of multistage collector of beamed electrons |