| Patents for H01J 25 - Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons (1,999) |
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| 07/18/1995 | US5433640 Cylinder cathodes of nickel alloys and anode vanes, cleaning cylinders and spraying emissive material |
| 06/28/1995 | CN1104414A Electron beam tubes |
| 06/21/1995 | CN1103992A Electron beam tubes |
| 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 |
| 05/23/1995 | US5418427 Internally cooled forward wave crossed field amplifier anode vane |
| 05/10/1995 | EP0652580A1 Linear electron beam tube arrangements |
| 05/02/1995 | US5412282 Radiation fin structure of a magnetron |
| 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 |
| 03/09/1995 | DE4431337A1 Röhre mit induktiver Auskopplung mit mehrstufigen Bremsfeldkollektor-Elektroden Tube with inductive coupling with multi-stage depressed collector electrodes |
| 02/21/1995 | US5391964 Magnetron yoke joint having bent joining lugs |
| 02/15/1995 | CN1098817A Electron beam tubes |
| 02/08/1995 | EP0637832A1 Electron beam devices |
| 02/08/1995 | EP0413018B1 Hyperfrequency wave generator device with virtual cathode |
| 02/07/1995 | US5387881 Atomic frequency standard |
| 01/31/1995 | US5386177 Plasma klystron amplifier |
| 01/31/1995 | US5384951 Method of making anisotropically loaded helix assembly for a traveling-wave tube |
| 01/26/1995 | DE4424135A1 Measuring device for electromagnetic waves |
| 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 |
| 01/04/1995 | EP0632481A1 Electron beam tubes |
| 12/28/1994 | EP0593768A4 Magnetron. |
| 12/20/1994 | US5374873 Gyrotron apparatus having vibration absorbing means |
| 12/13/1994 | US5373263 Transverse mode electron beam microwave generator |
| 12/08/1994 | WO1994024690A3 Electron beam tubes |
| 12/07/1994 | EP0627757A2 High frequency vacuum tube with closely spaced cathode and non-emissive grid |
| 12/01/1994 | DE4417803A1 Elektronenstrahlröhren CRT |
| 11/15/1994 | US5365186 Proton maser |
| 11/08/1994 | US5363054 Double beam cyclotron maser |
| 11/08/1994 | US5363016 Cooled reentrant TWT ladder circuit having axially raised cooling bars |
| 11/08/1994 | CA2039372C Microwave oven with invertor control power source |
| 10/27/1994 | WO1994024690A2 Electron beam tubes |
| 10/20/1994 | DE4411944A1 Elektronenstrahlröhrenanordnungen Cathode ray tube assemblies |
| 10/11/1994 | US5355380 Compact millimeter wave source |
| 08/23/1994 | US5341066 Anisotropically loaded helix assembly for a traveling-wave tube |
| 07/26/1994 | US5332948 X-z geometry periodic permanent magnet focusing system |
| 07/21/1994 | WO1994016338A1 High frequency scan converter |
| 07/19/1994 | US5331248 Cooling apparatus of magnetron |
| 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 |
| 06/07/1994 | US5319322 Electron beam antenna microwave generation device |
| 05/31/1994 | US5317233 Vacuum tube including grid-cathode assembly with resonant slow-wave structure |
| 05/24/1994 | US5315210 Klystron resonant cavity operating in TM01X mode, where X is greater than zero |
| 05/11/1994 | WO1994010699A1 Method of increasing and/or ensuring the efficiency of a gyrotron, and a gyrotron designed to carry out the method |
| 05/04/1994 | EP0594832A1 Tm01x mode (x 0) klystron resonant cavity |
| 04/27/1994 | EP0593768A1 Magnetron |
| 04/19/1994 | US5304942 Extended interaction output circuit for a broad band relativistic klystron |
| 04/13/1994 | EP0591579A1 Cooled coupled-actovity TWT circuit |
| 03/30/1994 | EP0589019A1 Magnetron |
| 03/16/1994 | EP0587481A1 Radial electron tube |
| 03/15/1994 | US5294864 Magnetron for microwave oven |
| 02/01/1994 | US5283534 High frequency amplifying apparatus with a collector which has a periodic amplitude variable longitudinal magnetic field therein |
| 01/25/1994 | US5281894 For producing a flow of electrons |
| 01/18/1994 | US5280216 Mode converter and power splitter for microwave tubes |
| 12/29/1993 | EP0403583B1 Plasma wave tube and method |
| 12/08/1993 | CN1079346A Atomic frequency standard |
| 12/08/1993 | CN1079335A Electron beam device |
| 11/30/1993 | US5266868 Gyrotron including quasi-optical mode converter |
| 11/25/1993 | WO1993023867A1 Tm01x mode (x>0) klystron resonant cavity |
| 10/28/1993 | WO1993021648A1 Magnetron |
| 10/28/1993 | WO1993021647A1 Magnetron |
| 10/06/1993 | EP0563543A1 Electron beam device |
| 09/22/1993 | EP0561261A1 Atomic frequency standard |
| 08/24/1993 | US5239235 Multiple-beam microwave tube with coaxial output and coaxial collector |
| 08/11/1993 | CN1075232A Anode assembly for a magnetron |
| 08/10/1993 | US5235249 Multiple-beam microwave tube with groups of adjacent cavities |
| 08/10/1993 | US5235248 Method and split cavity oscillator/modulator to generate pulsed particle beams and electromagnetic fields |
| 08/03/1993 | US5233269 Vacuum tube with an electron beam that is current and velocity-modulated |
| 08/03/1993 | US5232902 Method and apparatus for modulating relativistic electron beams to produce microwaves using a superconducting passage |
| 07/28/1993 | CN1074797A Fixing device for antenna feed line of magnetron |
| 07/27/1993 | US5231330 Digital helix for a traveling-wave tube and process for fabrication |
| 07/27/1993 | US5231073 Microwave/far infrared cavities and waveguides using high temperature superconductors |
| 07/13/1993 | US5227701 Gigatron microwave amplifier |
| 07/07/1993 | CN1074061A Magnetron for microwave oven |
| 07/06/1993 | US5225739 Klystron with cavities arranged in different blocks for providing widened instantaneous passband |
| 06/30/1993 | CN1073802A Vane and strap ring ring assembly of a magnetron |
| 06/09/1993 | EP0400089B1 Improved plasma wave tube |
| 05/26/1993 | CN1020987C Quasi-optical gyrotron |
| 03/23/1993 | US5196765 High RF isolation crossed-field amplifier |
| 03/17/1993 | CN1070063A High voltage capacitor and magnetron |
| 02/17/1993 | EP0522153A4 Gyrotron with radial beam extraction |
| 02/16/1993 | US5187409 Gyrotron having a quasi-optical mode converter |
| 02/16/1993 | US5187408 Quasi-optical component and gyrotron having undesired microwave radiation absorbing means |
| 01/26/1993 | US5182493 Rising sun magnetron with planar tuning member protruding into only one set of cavities |
| 01/19/1993 | US5180944 Gyrotron with a mode convertor which reduces em wave leakage |
| 01/13/1993 | EP0522153A1 Gyrotron with radial beam extraction. |
| 12/30/1992 | EP0520229A2 Microwave tube |
| 12/23/1992 | EP0519803A1 Strapped magnetron with frequency stabilisation |
| 12/23/1992 | CN1019621B Concentricity adjusting technology for cathode and anode of magnetron |
| 12/16/1992 | EP0518368A2 Gyrotron apparatus |
| 11/17/1992 | US5164634 Electron beam device generating microwave energy via a modulated virtual cathode |
| 11/11/1992 | EP0512451A2 A cooling apparatus of magnetron |
| 11/10/1992 | US5162747 Velocity modulation microwave amplifier with multiple band interaction structures |
| 11/10/1992 | US5162698 Cascaded relativistic magnetron |
| 11/10/1992 | US5162697 Traveling wave tube with gain flattening slow wave structure |
| 11/10/1992 | CA1310123C High performance extended interaction output circuit |
| 11/04/1992 | CN1018966B Quasi-optical gyrotron |
| 10/27/1992 | US5159241 Single body relativistic magnetron |