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