| Patents for H01J 23 - Details of transit-time tubes of the types covered by group (3,921) |
|---|
| 05/04/2004 | US6729926 Method for making magnetrons |
| 04/29/2004 | WO2003054900A3 Method for making electrodes and vacuum tube using same |
| 04/28/2004 | CN1147909C Plate-type magnetron |
| 04/27/2004 | US6727651 Traveling wave tube |
| 04/22/2004 | WO2003054899A3 Electronic tube with simplified collector |
| 04/21/2004 | CN2613042Y Magnetron with stable output power |
| 04/20/2004 | US6724153 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 |
| 04/20/2004 | US6724146 Phased array source of electromagnetic radiation |
| 04/15/2004 | WO2004032275A2 Improved on-chip vacuum microtube device and method for making such device |
| 04/15/2004 | US20040070345 Noise filter of high frequency generator |
| 04/14/2004 | EP1408608A2 Noise filter for high frequency generator |
| 04/14/2004 | CN1489282A Noise filter of high-frequency generator |
| 04/06/2004 | US6717365 Magnetron |
| 04/01/2004 | WO2004027111A1 Electrode, solid element and device using the same |
| 04/01/2004 | US20040061562 Magnetron |
| 04/01/2004 | US20040060933 Magnetron for microwave ovens |
| 03/31/2004 | EP1403900A2 Magnetron for microwave ovens |
| 03/31/2004 | EP1403899A2 Magnetron for microwave ovens |
| 03/31/2004 | CN1485878A Magnetron for microwave ovens |
| 03/30/2004 | US6713964 Electron gun for cathode ray tube |
| 03/24/2004 | CN1484884A Communication radar system |
| 03/23/2004 | CA2351037C Microwave vacuum tube device employing grid-modulated cold cathode source having nanotube emitters |
| 03/11/2004 | WO2004021611A2 Wireless communication system with high efficiency/high power optical source |
| 03/10/2004 | EP1396082A2 High voltage switching apparatus |
| 03/04/2004 | US20040041508 Electrode and device using the same |
| 03/03/2004 | CN1479344A Coating layer shielded magnetron |
| 02/26/2004 | WO2003030204A3 Microwave generator with virtual cathode |
| 02/25/2004 | EP1391909A2 Magnetron |
| 02/25/2004 | EP1391908A2 Magnetron for microwave ovens |
| 02/25/2004 | CN1477673A 磁控管 Magnetron |
| 02/24/2004 | US6696790 Magnetron with external terminals having connecting portions which are air-tightly connected to cathode leads |
| 02/24/2004 | US6696789 Color picture tube device |
| 02/19/2004 | WO2003049133A3 Electron collector |
| 02/18/2004 | CN1139095C Equalizer ring in magnetron |
| 02/18/2004 | CN1139094C Magnetron |
| 02/17/2004 | US6693378 Magnetron for microwave ovens |
| 02/11/2004 | EP1388880A2 Magnetron for microwave ovens |
| 02/11/2004 | EP1388879A2 Magnetron |
| 02/11/2004 | CN1474431A Magnetron for microwave oven |
| 02/11/2004 | CN1474430A 磁控管 Magnetron |
| 02/11/2004 | CN1474429A Magnetron of microwave oven |
| 02/05/2004 | WO2004012310A1 Laser-assisted field emission microwave signal generator |
| 02/05/2004 | US20040021522 Magnetron |
| 02/05/2004 | US20040021422 Magnetron |
| 02/05/2004 | US20040021421 Magnetron for microwave ovens |
| 02/05/2004 | US20040020924 Magnetron for microwave ovens |
| 02/04/2004 | CN1472767A 磁控管 Magnetron |
| 02/03/2004 | US6686696 Magnetron with diamond coated cathode |
| 02/03/2004 | US6686695 Cathode ray tube having degaussing coil for minimizing variations in landing of electron beam |
| 01/29/2004 | WO2004010450A1 Field emission cold cathode |
| 01/29/2004 | US20040017166 Method and system for controlling electron beams from field emission cathodes |
| 01/29/2004 | US20040017143 Multi-element field emission cathode |
| 01/29/2004 | US20040016753 Magnetron for microwave ovens |
| 01/28/2004 | EP1385191A1 Magnetron |
| 01/28/2004 | CN1471125A Magnetron for microwave oven |
| 01/27/2004 | US6683425 Null-field magnetron apparatus with essentially flat target |
| 01/22/2004 | US20040012349 Magnetron |
| 01/22/2004 | US20040012335 Magnetron |
| 01/22/2004 | US20040011506 Cooling device for an electron tube |
| 01/21/2004 | EP1383154A1 Magnetron |
| 01/21/2004 | EP1034556B1 Electron beam tubes |
| 01/21/2004 | CN1469413A 磁控管 Magnetron |
| 01/21/2004 | CN1135595C Temperature measuring device for magnetron of microwave oven |
| 01/21/2004 | CN1135579C Feedthrough ceramic capacitor |
| 01/20/2004 | US6680576 Lighting apparatus using microwave |
| 01/15/2004 | WO2004006410A2 Apparatus and method for powering multiple magnetrons using a single power supply |
| 01/15/2004 | WO2004006281A2 Method and apparatus for magnetic focusing of off-axis electron beam |
| 01/15/2004 | US20040007959 Method and apparatus for magnetic focusing of off-axis electron beam |
| 01/08/2004 | US20040004423 Cooling an electronic tube |
| 01/08/2004 | US20040004401 Apparatus and method for powering multiple magnetrons using a single power supply |
| 12/31/2003 | WO2004001787A2 Micro-wave tube with mechanical frequency tuning |
| 12/30/2003 | US6670762 Magnetron apparatus |
| 12/30/2003 | US6670761 Magnetron having straps of different materials to enhance structural stability |
| 12/30/2003 | US6670760 Collector structure of traveling wave tube having a lossy ceramic member |
| 12/24/2003 | WO2003106264A1 Cooling device for space craft |
| 12/18/2003 | WO2003105179A1 Inductive outputtube (10t) amplifier system |
| 12/17/2003 | CN1462053A Electron gun of cathode-ray tube |
| 12/17/2003 | CN1131539C Design method for magnetron for electornic range |
| 12/16/2003 | US6664734 Traveling-wave tube with a slow-wave circuit on a photonic band gap crystal structures |
| 12/16/2003 | US6664720 Temperature compensated gun |
| 12/11/2003 | WO2003103130A2 Magnetrons |
| 12/10/2003 | EP1369892A2 Broadband, inverted slot mode, coupled cavity circuit |
| 12/04/2003 | US20030222585 Electron gun for cathode ray tube |
| 12/03/2003 | EP1366504A1 Magnetron |
| 12/03/2003 | CN1129943C Process for preparing diamond rod of travelling wave tube |
| 11/27/2003 | WO2003077406A3 Power-supply unit for electronic oven |
| 11/27/2003 | US20030218413 Electron gun |
| 11/26/2003 | EP1364382A1 Device for producing high frequency microwaves |
| 11/26/2003 | CN1129160C Magnetron device and manufacturing method thereof |
| 11/25/2003 | US6653792 Ion implanting system |
| 11/25/2003 | US6653788 Magnetron having a lowered oscillation frequency and processing equipment employing the same |
| 11/25/2003 | US6653787 High power density multistage depressed collector |
| 11/19/2003 | EP1362358A1 Collector wall and collector coil group for a gyrotron |
| 11/19/2003 | CN1457076A Colour kinescope |
| 11/18/2003 | US6650518 Load protection system in a power modulator |
| 11/18/2003 | US6650057 Magnetron and microwave heating device |
| 11/13/2003 | US20030209988 Color picture tube device |
| 11/12/2003 | EP1361597A2 Color picture tube device |
| 11/11/2003 | US6646384 Microwave powered UV lamp with improved RF gasket arrangement |
| 11/11/2003 | US6646382 Microminiature microwave electron source |