Patents
Sitemap › H01 - Basic electric elements › H01J - Electric discharge tubes or discharge lamps › H01J 23 - Details of transit-time tubes of the types covered by group
Patents for H01J 23 - Details of transit-time tubes of the types covered by group (3,921)
11/2003
11/11/2003US6646367 Field emitter for microwave devices and the method of its production
11/11/2003US6645628 Carbon nanotube coated anode
11/06/2003US20030205960 Phased array source of electromagnetic radiation
11/04/2003US6642657 Robust pierce gun having multiple transmitting and emitting section
10/2003
10/30/2003WO2003090447A2 An auxiliary coil driver circuit for a cathode ray tube
10/29/2003CN1452208A 磁控管 Magnetron
10/23/2003WO2003043054A3 High-pressure discharge lamp
10/23/2003US20030197471 Magnetron
10/22/2003EP1355340A2 Magnetron
10/22/2003EP0966750B1 Device, notably for controlling a travelling-wave tube
10/22/2003CN1125477C Magnetrons
10/21/2003US6635978 Electron tube with axial beam and pyrolitic graphite grid
10/15/2003CN1124634C Magnetron
10/14/2003US6633131 Magnetron
10/14/2003US6633130 Cooling system of lighting apparatus using microwave energy
10/02/2003WO2003081628A1 An unsymmetrical-dielectric loaded helical structure with negative dispersion characteristics and a wideband travelling-wave tube using the same
10/02/2003US20030184232 Power-supply unit for microwave tube
10/01/2003CN1445811A Sputtering device and its electrode and manufacturing method of the electrode
10/01/2003CN1123041C Terminal cap parts for magnetron and its producing method
10/01/2003CN1123038C Method and apparatus for manufacturing magnetron
09/2003
09/25/2003WO2003079394A1 Magnetron
09/25/2003WO2003079393A1 Magnetron arrangements
09/25/2003US20030178952 Cold cathode-ray tube driving method
09/25/2003US20030178299 Rotation-magnetron-in-magnetron (RMIM) electrode, method of manufacturing the RMIM electrode, and sputtering apparatus including the RMIM electrode
09/24/2003CN1122295C Electromagnetic wave generator
09/23/2003US6624578 Cathode ray tube having multiple field emission cathodes
09/18/2003WO2003077406A2 Power-supply unit for electronic oven
09/18/2003WO2003077273A2 High power density collector
09/18/2003US20030173914 Electrostatic accelerator and ion implanting apparatus with the same
09/17/2003CN1442880A Cooling system of microwave energy illuminating equipment
09/16/2003US6621396 Permanent magnet radial magnetizer
09/11/2003US20030168987 Cooling system of lighting apparatus using microwave energy
09/11/2003US20030168986 Multiple stage depressed collector (MSDC) klystron based amplifier for ground based satellite and terrestrial communications
09/11/2003US20030168985 High power density multistage depressed collector
09/09/2003US6617791 Inductive output tube with multi-staged depressed collector having improved efficiency
09/04/2003WO2003073799A1 Microwave powered uv lamp with improved rf gasket arrangement
09/02/2003US6614158 Electron gun arrangements having closely spaced cathode and electrode and a vacuum seal
08/2003
08/28/2003WO2003071835A1 An apparatus for protection of an inductive output tube (iot) from stored energy in a linear high voltage power supply (hvps) and its associated filter circuit during a high voltage arc
08/26/2003US6611103 Electron gun assembly for cathode ray tube
08/21/2003US20030155870 Microwave powered uv lamp with improved rf gasket arrangement
08/21/2003US20030155868 Apparatus for protection of an Inductive Output Tube (IOT) from stored energy in a linear High Voltage Power Supply (HVPS) and its associated filter circuit during a high voltage arc
08/20/2003CN1437434A Electrostatic accelerator and its ion filling equipment
08/20/2003CN1437203A Capacitor for microwave oven magnetron
08/14/2003US20030151366 Traveling wave tube
08/14/2003US20030151341 Electron source
08/14/2003US20030150722 Magnetrons
08/13/2003EP1335394A1 Capacitor for magnetron of a microwave oven
08/13/2003CN1435859A Magnetron and method for mfg. same
08/07/2003US20030147195 Capacitor for magnetron of a microwave oven
08/07/2003US20030146703 Inner conductor for a co-axial gyrotron with axial corrugations which are evenly distributed around the periphery
08/06/2003CN1434976A Magnetron anodes
07/2003
07/24/2003WO2002099835A3 Cathode ray tube having multiple field emission cathrodes
07/23/2003EP1328958A1 Magnet, vacuum electron devices and communication systems
07/23/2003CN1432186A Magnetrons
07/17/2003US20030132887 Transducer with field emitter array
07/16/2003EP1328004A2 Electron tube with a cooled tubular sheath
07/15/2003US6593695 Broadband, inverted slot mode, coupled cavity circuit
07/10/2003US20030127987 Magnetron anodes
07/03/2003WO2003054904A1 Method and apparatus for detecting individual twt helix current for multiple twt loads
07/03/2003WO2003054900A2 Method for making electrodes and vacuum tube using same
07/03/2003WO2003054899A2 Electronic tube with simplified collector
07/03/2003US20030122491 Depressed collector for electron beams
07/03/2003US20030121911 Magnetron arrangement
07/01/2003US6586883 Method and apparatus for detecting individual TWT helix current for multiple TWT loads
07/01/2003US6584675 Constructing thermally and dimensionally stable, narrow tolerance, robust, miniature structures for high frequency use
06/2003
06/26/2003US20030117076 Traveling wave tube
06/25/2003EP1322035A2 Travelling wave tube
06/24/2003US6583567 Electron tube device mounted with a cold cathode and a method of impressing voltages on electrodes of the electron tube device
06/18/2003EP1066534B1 Vector network analyser
06/17/2003US6579393 High thermal conductivity lossy dielectric using co-densified multilayer configuration
06/12/2003WO2003049133A2 Electron collector
06/12/2003CA2469341A1 Electron collector
06/05/2003WO2003046941A1 Phased array source of electromagnetic radiation
06/04/2003EP1316984A2 Magnetron apparatus
06/04/2003EP1316101A1 Voltage reducing means for linear beam device having multi-stage depressed collector
05/2003
05/29/2003US20030098655 Linear-beam microwave tube
05/29/2003US20030098410 Field emission electron source, electron gun and cathode ray tube device using the same
05/28/2003CN1110060C 磁控管 Magnetron
05/22/2003WO2003043054A2 High-pressure discharge lamp
05/22/2003WO2003043046A1 Carbon nanotube coated anode
05/21/2003EP1312102A1 Tapered traveling wave tube
05/21/2003EP1312101A1 Broadband, inverted slot mode, coupled cavity circuit
05/15/2003US20030091825 Carbon nanotube coated anode
05/15/2003US20030090220 Magnetron apparatus
05/15/2003US20030090208 Collector
05/14/2003EP1309982A1 Inner conductor for a coaxial gyrotron with axial corrugations which are evenly distributed around the periphery
05/14/2003EP0745266B1 Chromatically compensated particle-beam column
05/14/2003CN1417834A Magnetron unit
05/08/2003WO2003038854A1 Electron beam tube apparatus
05/08/2003US20030085666 Electron beam tubes
05/08/2003US20030085658 Cathode ray tube having degaussing coil for minimizing variations in landing of electron beam
04/2003
04/29/2003US6555964 Device, notably for controlling a travelling-wave tube
04/24/2003US20030076043 Cathode ray tube with efficiently driven electron gun
04/23/2003CN1412812A Cathode-ray tube with erasing coil capable of minimizing electronic beam change on screen
04/22/2003US6552490 Multiple stage depressed collector (MSDC) klystron based amplifier for ground based satellite and terrestrial communications
04/17/2003US20030070922 Magnetron
04/16/2003CN1411019A 磁控管 Magnetron
04/10/2003WO2003030204A2 Microwave generator with virtual cathode
04/08/2003US6545717 Display system having selectable automatic CRT cutoff stabilization or AKB with CRT feedback current simulation
04/03/2003WO2003027994A2 Display system comprising a video processor
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