| Patents for H01J 23 - Details of transit-time tubes of the types covered by group (3,921) |
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| 04/30/2008 | CN101170039A 磁控管 Magnetron |
| 04/29/2008 | US7365493 Device for producing high frequency microwaves |
| 04/29/2008 | US7365291 High voltage input apparatus for magnetron |
| 04/24/2008 | WO2008008191A3 Method and apparatus for confining, neutralizing, compressing and accelerating an ion field |
| 04/16/2008 | CN101162677A Cathode structure of magnetrons for improved micro-wave oven |
| 04/16/2008 | CN100382225C Pulse magnetron |
| 04/15/2008 | US7359206 Radio frequency isolation system and cover assembly for vacuum electron device |
| 04/15/2008 | US7358676 Fluorescent light source |
| 04/03/2008 | WO2005017939A3 Ribbon-beam travelling wave amplifier with a single-sided slow-wave structure |
| 04/03/2008 | US20080079372 Circular acceleration apparatus, electromagnetic wave generator and electromagnetic-wave imaging system |
| 04/02/2008 | EP1252645B1 Collector |
| 04/02/2008 | CN100378897C Magnetron |
| 03/19/2008 | CN101145490A TWT impregnated Ba-W cathode and its preparation method |
| 03/19/2008 | CN101145483A Magnetron cathode filament carbonization method |
| 03/19/2008 | CN101145480A Composition for impregnated barium tungsten electrode and preparation method |
| 03/19/2008 | CN100376013C A-packaging brazing structure for magnetron |
| 03/18/2008 | US7345435 Superstructure for high current applications in superconducting linear accelerators |
| 03/12/2008 | CN101140845A Microwave source cathode and manufacturing method therefor |
| 03/06/2008 | WO2001022049A3 A novel ion-mobility based device using an oscillatory high-field ion separator with a multi-channel array charge collector |
| 02/20/2008 | CN101127291A A choke coil of magnetron |
| 02/13/2008 | CN201022070Y A metal film attenuator |
| 02/06/2008 | CN101118829A Anode blade of magnetrons for improved micro-wave oven |
| 02/05/2008 | US7327088 Magnetron |
| 02/05/2008 | US7327077 Electron tube control grid |
| 01/24/2008 | US20080018255 Electro-permanent magnet for power microwave tubes |
| 01/17/2008 | WO2007130095A3 Single layer construction for ultra small devices |
| 01/16/2008 | CN101107693A Magnetron control method, magnetron service life judgment method, microwave generation device, magnetron service life judgment device, processing device, computer program, and storage medium |
| 01/01/2008 | US7315134 Power supply for a high voltage device |
| 12/26/2007 | CN101095206A L-band inductive output tube |
| 12/26/2007 | CN101093770A 磁控管 Magnetron |
| 12/20/2007 | US20070293115 Process for making an on-chip vacuum tube device |
| 12/19/2007 | CN200993992Y Amplifying chamber output capacitance regulating device |
| 12/13/2007 | US20070285018 Coaxial cavity gyrotron with two electron beams |
| 12/12/2007 | EP1864310A2 Packaging systems incorporating thin film liquid crystal polymer (lcp) and methods of manufacture |
| 12/05/2007 | CN200986910Y Magnet steel forming mold dedicated for magnetrons of microwave oven |
| 11/21/2007 | EP1106035B1 Magnetron drive power supply |
| 11/20/2007 | CA2311352C Electron beam tubes |
| 11/14/2007 | CN101071717A Magnetron with anti-current structure |
| 11/14/2007 | CN101070568A Method for preparing copper pipe for magnetic control pipe |
| 11/07/2007 | CN100347485C Microwave oven with reduced electromagnetic noise |
| 11/01/2007 | US20070253715 Wireless communication system with high efficiency/high power optical source |
| 10/31/2007 | EP1849174A1 Dynamic depressed collector (ddc) |
| 10/31/2007 | CN100346443C Electronic tube grid with axial beam |
| 10/24/2007 | CN200965860Y A coupling cavity multi-beam traveling wave tube slow wave structure |
| 10/24/2007 | CN200965859Y A multi-beam traveling wave tube step-down collector |
| 10/23/2007 | US7286175 Bias control circuitry for cathode ray tube beam currents |
| 10/23/2007 | US7285915 Electron gun for producing incident and secondary electrons |
| 10/10/2007 | CN101051594A High order mould multiple injection speed regulating tube output circuit |
| 10/10/2007 | CN100342478C 磁控管 Magnetron |
| 10/09/2007 | US7279842 Magnetron with wavy straps |
| 10/03/2007 | EP1840933A2 Magnetron |
| 10/03/2007 | CN101047095A 磁控管 Magnetron |
| 09/26/2007 | CN100339928C Combined extrusion method using transition cellpacking to realize helical slow-wave structure |
| 09/05/2007 | EP1565926B1 Electron tube with multistage depressed collector |
| 08/30/2007 | US20070200506 Microwave tube |
| 08/29/2007 | EP1826805A2 Microwave tube |
| 08/29/2007 | EP1825490A1 Optically controlled field emission cathode |
| 08/22/2007 | EP1129465B1 High voltage standoff, current regulating, hollow electron beam switch tube |
| 08/21/2007 | US7259510 On-chip vacuum tube device and process for making device |
| 08/15/2007 | CN101017921A High-power ridge wave guide microwave window |
| 08/14/2007 | US7257327 Wireless communication system with high efficiency/high power optical source |
| 08/14/2007 | US7256637 High voltage switching apparatus |
| 08/08/2007 | CN101013646A 磁控管 Magnetron |
| 08/01/2007 | EP1814134A2 Power supply apparatus and high frequency circuit system |
| 08/01/2007 | CN1329941C 磁控管 Magnetron |
| 07/25/2007 | EP1810310A2 L-band inductive output tube |
| 07/17/2007 | US7245082 Mode seeding cathode for a relativistic magnetron |
| 07/12/2007 | US20070158539 Radiation system |
| 07/11/2007 | CN1326184C Magnetron for microwave oven |
| 07/10/2007 | US7242135 High voltage connection for vacuum electron device |
| 07/05/2007 | US20070152598 Method for increasing profit in a business to maintain lighting operations in an office building or other place of business |
| 07/04/2007 | EP1804269A2 Magnetron |
| 07/04/2007 | CN1993796A Electrostatic fluid accelerator for and a method of controlling fluid flow |
| 07/04/2007 | CN1992135A 磁控管 Magnetron |
| 07/04/2007 | CN1992134A 磁电管 Magnetron |
| 07/04/2007 | CN1324636C Magnetron and microwave oven and high-frequency heating equipment equiped with the same magnetron |
| 06/28/2007 | US20070146096 Magnetron |
| 06/28/2007 | US20070146084 Klystron amplifier |
| 06/28/2007 | US20070145916 Sequentially pulsed traveling wave accelerator |
| 06/27/2007 | CN1988105A 磁控管 Magnetron |
| 06/26/2007 | US7235929 Magnetron |
| 06/12/2007 | US7230385 Collector arrangement |
| 06/06/2007 | EP1792525A1 Multi-channel induction accelerator with external channels |
| 06/06/2007 | CN1320589C Output component structure for magnetron |
| 05/23/2007 | CN1317730C Magnetron |
| 05/16/2007 | CN1316553C High-pressure discharge lamp |
| 05/16/2007 | CN1316538C Magnetrons |
| 05/15/2007 | US7218053 Electron beam tube output arrangement |
| 05/10/2007 | WO2007052774A1 Multi-beam klystron apparatus |
| 05/02/2007 | CN1956124A High efficient cathode assembly |
| 04/24/2007 | US7208890 Multi-section particle accelerator with controlled beam current |
| 04/24/2007 | US7208889 Particle accelerator having wide energy control range |
| 04/24/2007 | US7208878 Method of manufacturing a rotation-magnetron-in-magnetron (RMIM) electrode |
| 04/19/2007 | WO2006052811A3 L-band inductive output tube |
| 04/10/2007 | US7202605 Electron beam tube apparatus having a common output combining cavity |
| 04/03/2007 | US7199524 Magnetron arrangements |
| 03/27/2007 | US7196601 Temperature correction of wigglers and undulators |
| 03/20/2007 | US7193485 Method and apparatus for bi-planar backward wave oscillator |
| 03/15/2007 | WO2007029580A1 Magnetron control method, magnetron service life judgment method, microwave generation device, magnetron service life judgment device, processing device, computer program, and storage medium |
| 03/15/2007 | US20070060008 Collector cooling arrangement |