Patents
Patents for H01J 23 - Details of transit-time tubes of the types covered by group (3,921)
10/2000
10/04/2000CN1268758A 电容器 Capacitors
10/04/2000CN1057170C Medical microwave magnetron and microwave therapeutic equipment with multi-way output
10/03/2000US6127779 High voltage standoff, current regulating, hollow electron beam switch tube
09/2000
09/14/2000WO2000054305A1 Laser-assisted field emission microwave signal generator
09/13/2000EP1035554A2 High voltage capacitor and magnetron
09/13/2000EP1034556A1 Electron beam tubes
09/05/2000US6114808 Cold cathode electron gun for microwave tube
08/2000
08/29/2000US6111358 System and method for recovering power from a traveling wave tube
08/23/2000EP1030341A1 Radio frequency generator with very high power
08/23/2000CN1055780C Electron beam tubes
08/17/2000WO2000048220A1 Field emitter array with enhanced performance
08/16/2000CA2298321A1 Very high power radio frequency generator
08/02/2000EP1024517A1 Electron beam tubes
08/01/2000US6097154 Microwave oven magnetron design with a harmonic choke following a numerical expression
07/2000
07/26/2000EP1022764A1 Article comprising enhanced nanotube emitter structure and process for fabricating article
07/26/2000EP1022763A1 Article comprising aligned, truncated carbon nanotubes and process for fabricating article
07/26/2000CA2296831A1 Electron beam tubes
07/25/2000US6094010 Electron gun with photocathode and folded coolant path
07/25/2000US6094009 High efficiency collector for traveling wave tubes with high perveance beams using focusing lens effects
07/25/2000CA2295290A1 Article comprising aligned, truncated carbon nanotubes and process for fabricating article
07/25/2000CA2294656A1 Article comprising enhanced nanotube emitter structure and process for fabricating article
07/19/2000EP1020880A2 Capacitor
07/18/2000CA2033030C Electrical power circuit for a charge such a magnetron
07/06/2000WO2000039832A2 Multiband travelling wave tube of reduced length capable of high power functioning
07/05/2000CN1054256C Noise shielding apparatus for magnetron of microwave oven
06/2000
06/28/2000EP1012864A1 Method and device for controlling a magnetron filament current
06/21/2000CN1053784C Clutter shielding device for mangetron of microwave oven
06/21/2000CN1053762C Linear electron beam tube arrangements
06/20/2000US6078141 Magnetron with improved vanes
06/15/2000WO2000034976A1 Crossed-field amplifier with multipactor suppression
06/06/2000US6071595 Substrate with low secondary emissions
05/2000
05/30/2000CA2026111C Amplifier or oscillator device for generating microwaves
05/25/2000WO2000030234A1 Load protection system in a power modulator
05/25/2000WO2000030145A1 Low-power wide-bandwidth klystron
05/25/2000WO2000030144A1 Multiple beam electronic tube with minimal electron interception
05/25/2000DE19852723A1 Schutzsystem in einem Leistungsmodulator zum Schutze der Last Protection system in a power modulator for the Protection of load
05/24/2000EP1003198A1 Magnetron apparatus and manufacturing method therefor
05/24/2000CN1254175A Magnetoelectric tube device and its production method
05/18/2000WO2000028797A1 Internally cooled linear accelerator and drift tubes
05/18/2000WO2000028569A1 High voltage standoff, current regulating, hollow electron beam switch tube
05/17/2000CN1052559C Fixing device for antenna feed line of magnetron
05/16/2000US6064154 Magnetron tuning using plasmas
05/09/2000US6060832 Self-biasing collector elements for linear-beam microwave tubes
04/2000
04/27/2000WO2000024026A1 Ceramic electron collector assembly having metal sleeve for high temperature operation
04/26/2000CN1051868C Unnecessary electromagnetic wave shielding structure of magnetron for microwave oven
04/11/2000US6049249 TWT with mismatched section for controlled gain variation with frequency
04/11/2000US6048242 Fabrication of traveling wavetube barrels using precision track forming
04/05/2000EP0934599A4 Multi-stage depressed collector for small orbit gyrotrons
03/2000
03/29/2000EP0989580A2 Cold cathode electron gun
03/07/2000US6034572 Magnetically insulated line oscillator microwave pulse generator
03/07/2000US6034469 Impregnated type cathode assembly, cathode substrate for use in the assembly, electron gun using the assembly, and electron tube using the cathode assembly
03/01/2000EP0982754A1 Self-biasing collector elements for linear-beam microwave tubes
02/2000
02/24/2000DE19818144C1 Progressive field tube arrangement for high power microwave amplifiers, especially in satellites, has linearizing circuit/tube unit with circuit held at lower temperature than tube wall by active cooling
02/16/2000CN1049527C Structure for supporting of cathode of magnetic controlling tube
02/15/2000US6025678 Linear-beam microwave tube with output cavity beyond the collector
02/15/2000US6024618 Method of operating electron tube
02/10/2000WO2000007211A1 Waveguide series resonant cavity for enhancing efficiency and bandwidth in a linear beam tube
02/02/2000EP0977237A1 System and method for recovering power from a traveling wave tube
01/2000
01/26/2000EP0975002A1 Transverse field collector
01/26/2000EP0974999A1 Microwave electron gun
01/19/2000CN1241802A Microwave non-electrode discharge lamp device
01/19/2000CN1048580C Magnetron for microwave oven
01/13/2000WO2000002226A1 Multibeam electronic tube with magnetic field for correcting beam trajectory
12/1999
12/29/1999EP0966750A1 Device, notably for controlling a travelling-wave tube
12/29/1999CN1239814A High thermal conductivity and high accuracy electron tube holding pole
12/22/1999CN1239315A Method and apparatus for manufacturing magnetron
12/21/1999US6005347 Cathode for a magnetron having primary and secondary electron emitters
12/14/1999US6002988 Method for optimizing the magnetic field of a periodic permanent magnet focusing device
12/08/1999CN1237776A Electron beam tubes
11/1999
11/23/1999US5990622 Grid support structure for an electron beam device
11/23/1999US5990621 Electron beam tubes including ceramic material for realizing rf chokes
11/23/1999US5990600 Emissive heat radiator with semi-cylindrical heat radiating member
11/23/1999CA2173641C Switched-inverter modulator
11/17/1999EP0957505A2 Electron gun assembly
11/17/1999EP0957504A2 Electron gun arrangements
11/17/1999CN1235366A Electron gun arrangements
11/16/1999US5986388 Field-emission cold-cathode electron gun having emitter tips between the top surface of gate electrode and focusing electrode
11/09/1999CA2271253A1 Electron gun assembly
11/09/1999CA2271250A1 Electron gun arrangements
11/02/1999US5977719 Field emission cathode type electron gun with individually-controlled cathode segments
11/02/1999US5977714 Magnetron anodes having refractory material and cooled by fluid boiling
11/02/1999US5977713 High voltage noise filter and magnetron device using it
11/02/1999US5977697 Field emission devices employing diamond particle emitters
10/1999
10/26/1999US5972180 Apparatus for electropolishing of helix used for a microwave tube
10/21/1999DE4032137C2 Wanderfeldröhre Traveling wave tube
10/14/1999WO1999052123A1 Inductive output amplifier output cavity structure
10/12/1999US5964633 Method of heat shrink assembly of traveling wave tube
10/06/1999EP0948024A2 Low impedance grid-anode interaction region for an inductive output amplifier
09/1999
09/30/1999WO1999049326A1 Vector network analyser
09/29/1999EP0945891A1 Electron beam tubes
09/28/1999US5959406 Traveling wave tube with expanding resilient support elements
09/22/1999EP0944107A2 Electron gun for electron tube with cold cathode
09/21/1999US5955849 Cold field emitters with thick focusing grids
09/16/1999DE19812604C1 Vectorial network analyzer for millimeter wave range
09/14/1999US5952785 Transverse field collector for a traveling wave tube
09/14/1999US5950719 To cool a part
08/1999
08/24/1999US5942852 Efficient, highly linear traveling wave tube using collector with high backstreaming current under saturated drive
08/19/1999WO1999041762A1 Electronic tube grid with axial beam
08/18/1999EP0902959A4 Multi-stage electron gun having an electrostatic cavity
08/11/1999EP0934599A1 Multi-stage depressed collector for small orbit gyrotrons
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