Patents
Patents for H01J 25 - Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons (1,999)
11/2002
11/27/2002EP1259973A1 Transducer with field emitter array
11/26/2002US6486605 Multibeam electronic tube with magnetic field for correcting beam trajectory
11/26/2002US6486604 Traveling-wave valve arrangement
11/21/2002DE10105441C1 Kollektorwand und Kollektorspulengruppe eines Gyrotrons Wall collector and collector coil group a gyrotron
11/19/2002US6483243 Multiband travelling wave tube of reduced length capable of high power functioning
11/14/2002US20020167276 Traveling wave tube and method of manufacture
11/05/2002US6476558 Mode converter and gyrotron tube provided with mode converter for converting mode of millimeter waves
10/2002
10/23/2002EP1251544A1 Microwave amplifier electron tube with miniature entry plug and method of fabrication
10/16/2002EP1249030A2 Magnetron anodes
10/15/2002US6465958 Electron beam tubes
10/15/2002CA2267710C Low impedance grid-anode interaction region for an inductive output amplifier
10/03/2002US20020140356 Optical magnetron for high efficiency production of optical radiation
10/01/2002CA2254677C Apparatus for sputtering or arc evaporation
09/2002
09/19/2002DE10111817A1 Vorrichtung zur Erzeugung von Mikrowellen hoher Frequenz Device for generating microwaves of high frequency
09/12/2002WO2002071435A1 Device for producing high frequency microwaves
08/2002
08/29/2002WO2000054305A9 Laser-assisted field emission microwave signal generator
08/22/2002WO2002065504A1 Magnetron
08/20/2002US6437511 Magnetron having choke structures with a gap spacing therebetween
08/20/2002US6437510 Crossed-field amplifier with multipactor suppression
08/15/2002WO2002063652A1 Collector wall and collector coil group for a gyrotron
08/14/2002EP1230662A2 Magnetrons and methods of making them
08/01/2002US20020101161 Electron gun for color cathode ray tube
07/2002
07/31/2002EP1226601A1 Dual-band rf power tube with shared collector and associated method
07/24/2002CN1360079A Secondary-emission rare earth-molybdenum material and its preparing process
07/23/2002US6424090 Modification of millimetric wavelength microwave beam power distribution
07/09/2002US6417622 Broadband, inverted slot mode, coupled cavity circuit
06/2002
06/19/2002EP1214276A1 Joining of cvd diamond bodies to metal structures
06/13/2002US20020070671 Optical magnetron for high efficiency production of optical radiation, and 1/2 lambda induced pi-mode operation
06/13/2002US20020070108 Magnetron
06/06/2002WO2001097250A3 Magnetrons and methods of making them
06/05/2002EP1155434A4 Crossed-field amplifier with multipactor suppression
05/2002
05/29/2002CN1085817C Magnetron of microwave oven
05/23/2002US20020060521 Apparatus for bunching relativistic electrons
05/14/2002US6388379 Magnetron having a secondary electron emitter isolated from an end shield
05/01/2002CN1347132A Full-metallic spiral slow-wave structure
04/2002
04/30/2002US6380803 Linear amplifier having discrete resonant circuit elements and providing near-constant efficiency across a wide range of output power
04/18/2002US20020043937 Magnetron having a lowered oscillation frequency and processing equipment employing the same
04/16/2002US6373194 Optical magnetron for high efficiency production of optical radiation
04/11/2002WO2002029843A1 Carbon-based field emission electron device for high current density applications
04/09/2002US6369511 Travelling-wave tube amplifier
03/2002
03/28/2002WO2002025684A1 Magnet, vacuum electron devices and communication systems
03/28/2002US20020036470 Electron tube device mounted with a cold cathode and a method of impressing voltages on electrodes of the electron tube device
03/19/2002US6360084 Dual-band RF power tube with shared collector and associated method
03/13/2002EP1186079A2 Miniaturized terahertz radiation source
03/06/2002EP1184888A1 On-chip vacuum tube device and process for making the device
03/06/2002CN1338767A Magnetrons
02/2002
02/26/2002US6350356 Linear magnetron arc evaporation or sputtering source
02/26/2002CA2225121C Microwave oven equipped with a structurally simple apparatus for generating a microwave frequency energy
02/21/2002WO2002015217A1 Inner conductor for a coaxial gyrotron with axial corrugations which are evenly distributed around the periphery
02/21/2002US20020021095 Mode converter and gyrotron tube provided with mode converter for converting mode of millimeter waves
02/19/2002CA2124726C High frequency vacuum tube with closely spaced cathode and non-emissive grid
02/07/2002US20020014844 Double capacitor
01/2002
01/30/2002CN1078733C Resonator device
01/15/2002US6339294 Magnetron anode vanes having a face portion oriented towards the anode center
01/15/2002CA2225038C Structurally simple apparatus for generating a microwave frequency energy
01/15/2002CA2118350C Electron beam tube arrangements
01/03/2002WO2002001593A1 Broadband power micro-wave tube
12/2001
12/27/2001WO2001046985A3 Magnetron arrangement
12/20/2001WO2001097250A2 Magnetrons and methods of making them
12/20/2001US20010052825 Magnetrons
12/13/2001DE10104935A1 High frequency oscillator tube has electron beam passing through resonator twice transversely, first at electric field antinode and second at magnetic field antinode or vice-versa
12/13/2001DE10040320C1 Inner conductor for coaxial gyrotron provided with impedance corrugations of varying depth between input funnel and output funnel of resonator center piece
12/11/2001US6329753 M-type microwave device with slanted field emitter
12/06/2001WO2001046981A3 Magnetron anodes
12/05/2001EP1159753A1 Multiple beam electronic tube with minimal electron interception
12/04/2001US6326730 Low-power wide-bandwidth klystron
12/04/2001US6326729 Field emission cathode and electromagnetic wave generating apparatus comprising the same
11/2001
11/22/2001WO2001088945A1 Broadband, inverted slot mode, coupled cavity circuit
11/21/2001EP1155434A1 Crossed-field amplifier with multipactor suppression
11/06/2001US6313710 Interaction structure with integral coupling and bunching section
10/2001
10/31/2001CN1319869A 磁控管 Magnetron
10/30/2001US6310438 Electron tube device mounted with a cold cathode and a method of impressing voltages on electrodes of the electron tube device
10/17/2001EP1145268A2 Multiband travelling wave tube of reduced length capable of high power functioning
10/11/2001WO2001075928A1 Magnetrons
10/09/2001US6300715 Very high power radiofrequency generator
10/04/2001EP1139377A1 Magnetrons
09/2001
09/27/2001US20010024091 Electron tube device mounted with a cold cathode and a method of impressing voltages on electrodes of the electron tube device
09/12/2001EP1131840A1 Low-power wide-bandwidth klystron
09/04/2001US6283812 Process for fabricating article comprising aligned truncated carbon nanotubes
08/2001
08/16/2001WO2001059802A1 Transducer with field emitter array
08/16/2001US20010013757 Broadband, inverted slot mode, coupled cavity circuit
08/15/2001CN1308769A Multibeam electronic tube with magnetic field for correcting beam trajectory
08/09/2001US20010011924 Linear amplifier having discrete resonant circuit elements and providing near-constant efficiency across a wide range of output power
08/01/2001CN1306294A Magnetron
07/2001
07/04/2001EP1113481A1 Magnetron
06/2001
06/28/2001WO2001046985A2 Magnetron arrangement
06/28/2001WO2001046981A2 Magnetron anodes
06/27/2001CN1301033A Electromagnetic wave generator
06/27/2001CN1067798C Grid electron tube with improved performance characteristics
06/26/2001US6250984 Article comprising enhanced nanotube emitter structure and process for fabricating article
06/21/2001US20010004192 Magnetron
06/12/2001US6246295 Planar radiation oscillator apparatus
05/2001
05/30/2001CN2432677Y MIcrowave magnetron with more than two-way output power
05/22/2001US6236161 Crossed-field device
05/15/2001US6232721 Inductive output tube (IOT) amplifier system
05/10/2001WO2001033599A1 Dual-band rf power tube with shared collector and associated method
05/09/2001CN1294750A Magnetron
05/09/2001CN1065649C 磁控管 Magnetron
05/09/2001CN1065648C 磁控管 Magnetron
05/02/2001EP1095390A1 Multibeam electronic tube with magnetic field for correcting beam trajectory
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