| Patents for H01J 23 - Details of transit-time tubes of the types covered by group (3,921) |
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| 04/06/2005 | EP1521288A2 Magnetron for microwave oven |
| 04/06/2005 | EP1101240B1 Waveguide series resonant cavity for enhancing efficiency and bandwidth in a linear beam tube |
| 04/06/2005 | CN1604248A High voltage through capacitor and magnetron |
| 04/06/2005 | CN1196164C 磁控管 Magnetron |
| 04/06/2005 | CN1196163C Magnetron |
| 03/31/2005 | US20050067966 Power supply apparatus for traveling-wave tube which eliminates high voltage relay |
| 03/31/2005 | US20050067965 Electronic tube with simplified collector |
| 03/29/2005 | US6872929 Low-noise, crossed-field devices such as a microwave magnetron, microwave oven utilizing same and method of converting a noisy magnetron to a low-noise magnetron |
| 03/24/2005 | US20050062427 Magnetron cathode assembly |
| 03/24/2005 | US20050062424 Photonic crystal ribbon-beam traveling wave amplifier |
| 03/24/2005 | US20050062381 Electron collector |
| 03/24/2005 | US20050061805 Magnetron for microwave ovens and method of forming same |
| 03/23/2005 | EP1517352A2 Power supply circuit for traveling-wave tube which eliminates large relay and relay driving power supply |
| 03/23/2005 | EP1517351A2 Magnetron cathode assembly |
| 03/23/2005 | CN1599944A Electron collector |
| 03/23/2005 | CN1599012A Magnetron cathode assembly |
| 03/22/2005 | US6870318 Multiple stage depressed collector (MSDC) klystron based amplifier for ground based satellite and terrestrial communications |
| 03/22/2005 | CA2384908C Dual-band rf power tube with shared collector and associated method |
| 03/17/2005 | US20050057159 Power supply circuit for traveling-wave tube which eliminates large relay and relay driving power supply |
| 03/17/2005 | US20050057157 Traveling-wave tube having heat radiating structure with high thermal conductivity |
| 03/16/2005 | EP1515353A2 Magnetron for microwave ovens and method of forming same |
| 03/16/2005 | CN1595591A Magnetron for microwave ovens and method of forming same |
| 03/15/2005 | US6867405 Magnetron for microwave ovens |
| 03/15/2005 | CA2195035C Actuator |
| 03/10/2005 | WO2005022553A2 Radiation system |
| 03/09/2005 | CN1592097A Magnetron interference eliminating filter |
| 03/09/2005 | CN1591754A Guard structure for magnetron |
| 03/09/2005 | CN1591753A Structure of filtering box of magnetron |
| 03/09/2005 | CN1591752A Fixing structure of cooling fin of ionic centrifuge |
| 03/09/2005 | CN1591751A Antenna cover fixing structure of ionic centrifuge |
| 03/09/2005 | CN1591750A Wire Structure for magnetron |
| 03/09/2005 | CN1591749A Cooling fin structure of magnetron |
| 03/09/2005 | CN1591748A Magnetron output device |
| 03/08/2005 | US6864636 Apparatus, method, and system for a laser-assisted field emission microwave signal generator |
| 03/03/2005 | WO2005020272A2 Magnetron |
| 03/03/2005 | CA2536013A1 Magnetron |
| 02/24/2005 | WO2005017939A2 Ribbon-beam travelling wave amplifier with a single-sided slow-wave structure |
| 02/24/2005 | WO2003103130A3 Magnetrons |
| 02/23/2005 | EP1508151A2 High power density collector |
| 02/23/2005 | EP1312102A4 Tapered traveling wave tube |
| 02/23/2005 | CN1585995A High-pressure discharge lamp |
| 02/22/2005 | US6858973 Cooling an electronic tube |
| 02/16/2005 | CN2679840Y Filter modular for magnetron |
| 02/16/2005 | CN2679839Y High efficiency radiating fin for magnetron |
| 02/16/2005 | CN2679838Y Radiating fin for magnetron |
| 02/16/2005 | CN1581410A 磁控管 Magnetron |
| 02/15/2005 | US6856081 Method and apparatus for magnetic focusing of off-axis electron beam |
| 02/15/2005 | US6856080 Carbonized resin coated anode |
| 02/10/2005 | US20050029917 Magnetron |
| 02/09/2005 | EP1505628A2 Magnetron |
| 02/09/2005 | EP1505627A2 Magnetron |
| 02/09/2005 | CN1577702A 磁控管 Magnetron |
| 02/09/2005 | CN1577701A Magnetron for microwave oven |
| 02/09/2005 | CN1577700A 磁控管 Magnetron |
| 02/09/2005 | CN1188890C Electron gun arrangements |
| 02/03/2005 | WO2004032275A3 Improved on-chip vacuum microtube device and method for making such device |
| 02/02/2005 | CN1574168A 磁控管 Magnetron |
| 02/02/2005 | CN1187783C 磁控管 Magnetron |
| 01/26/2005 | CN1571096A Combined extrusion method using transition cellpacking to realize helical slow-wave structure |
| 01/25/2005 | US6847168 Electron gun for a multiple beam klystron using magnetic focusing with a magnetic field corrector |
| 01/25/2005 | US6847023 Magnetron for microwave ovens |
| 01/20/2005 | US20050012464 High-pressure discharge lamp |
| 01/20/2005 | US20050012461 Magnetron |
| 01/19/2005 | CN2672848Y Filter assembly for continuous wave magnetic control tube |
| 01/19/2005 | CN1567520A Seal ring arrangement for magnetron |
| 01/19/2005 | CN1567519A A-packaging brazing structure for magnetron |
| 01/19/2005 | CN1567518A Exhaust pipe structure for magnetron |
| 01/19/2005 | CN1567517A Shielding structure of magnetron input part |
| 01/18/2005 | US6844860 Transducer with field emitter array |
| 01/18/2005 | US6844689 Multiple beam linear accelerator system |
| 01/18/2005 | US6844680 Magnetron having specific dimensions for solving noise problem |
| 01/12/2005 | CN2671116Y Magnetron fins with asymmetric areas |
| 01/11/2005 | US6841940 Magnetron anodes |
| 01/06/2005 | US20050001552 Cathode-ray tube |
| 01/05/2005 | EP1494259A2 Choke coil for a magnetron, and magnetron comprising such coil. |
| 01/05/2005 | CN1559631A Medical microwave magnetron and medical microwave therapeutic machine |
| 01/04/2005 | US6838829 Depressed collector for electron beams |
| 12/30/2004 | US20040263050 Electron tube control grid |
| 12/30/2004 | US20040262304 Magnetron |
| 12/30/2004 | US20040262302 Magnetron with evaporation baffle |
| 12/29/2004 | WO2004114350A2 Progressive wave tube with improved efficiency |
| 12/29/2004 | WO2003077273A3 High power density collector |
| 12/23/2004 | US20040257008 CRT vertical scanning circuit with a low power standby |
| 12/22/2004 | CN1181669C Cathode-ray tube display device |
| 12/21/2004 | US6833679 Method for forming an image on a screen of a cathode ray tube |
| 12/15/2004 | EP1485933A1 Magnetron |
| 12/15/2004 | EP1485932A1 Magnetron arrangements |
| 12/14/2004 | US6831416 Inductive compensator for magnetron |
| 12/09/2004 | US20040245933 Method and apparatus for generation and frequency tuning of modulated, high current electron beams |
| 12/09/2004 | US20040245932 Microwave generator with virtual cathode |
| 12/08/2004 | EP1483823A2 Power-supply unit for electronic oven |
| 12/08/2004 | CN1553471A Double gap microwave resournance chamber with pai modular strong coupling |
| 12/07/2004 | US6828696 Apparatus and method for powering multiple magnetrons using a single power supply |
| 12/02/2004 | US20040239255 Magnetron |
| 12/02/2004 | US20040239254 Electronic energy-saving fluorescent lamp of ultra-short chayote-shaped compact type |
| 12/01/2004 | EP1482531A2 Magnetron |
| 12/01/2004 | CN1178259C Ternary RE-Mo secondary emitting material and its prepn. |
| 11/18/2004 | WO2004100353A2 Low-noise, crossed-field devices such as a microwave magnetron, microwave oven utilizing same and method of converting a noisy magnetron to a low-noise magnetron |
| 11/18/2004 | WO2004100204A2 Low spurious radiation microwave tube |
| 11/18/2004 | US20040227468 Klystron-type devices |