| Patents for H01J 25 - Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons (1,999) |
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| 10/24/2012 | CN102751153A Interchangeability design method for domestic satellite-mounted travelling-wave tube amplifier and imported satellite-mounted travelling-wave tube amplifier |
| 10/17/2012 | CN202495416U S band 10% bandwidth high power klystron |
| 10/17/2012 | CN102737928A Magnetic pole component, magnetron provided with magnetic pole component, sputtering chamber apparatus, and substrate processing device |
| 10/17/2012 | CN102737927A Double electron beam electron gun and gyrotron |
| 10/17/2012 | CN102737926A Magnetron |
| 10/10/2012 | CN101276723B Magnetron |
| 10/04/2012 | US20120248979 High frequency helical amplifier and oscillator |
| 10/03/2012 | CN102709138A Cyclotron extended interaction klystron amplifier |
| 09/27/2012 | US20120242224 Crossed-field amplifiers with reduced spurious emissions |
| 09/26/2012 | CN102693891A Magnetron |
| 09/26/2012 | CN102012502B Closed high-power travelling wave tube transmitter with phase change heat radiator |
| 09/20/2012 | US20120235565 Magnetron and apparatus that uses microwaves |
| 09/20/2012 | US20120235564 Magnetron |
| 09/19/2012 | EP2499650A1 High frequency cathode heater supply for a microwave source |
| 09/19/2012 | CN102683141A Integrated traveling-wave tube amplifier |
| 09/13/2012 | WO2012119786A1 Electron source for linear accelerators |
| 09/11/2012 | US8264151 Color variable field emission device |
| 09/11/2012 | US8264150 Modular magnetron |
| 08/30/2012 | US20120217872 Luminaire |
| 08/29/2012 | EP2491570A1 Low-voltage, multi-beam klystron |
| 08/16/2012 | WO2012107763A1 Filter for a magnetron power supply lead |
| 08/14/2012 | US8242696 Vacuum electronic device |
| 08/09/2012 | US20120200223 Hyperfrequency wave generator device comprising a plurality of magnetrons |
| 08/07/2012 | US8237608 Magnetron and radar apparatus |
| 08/01/2012 | CN202363406U Insulation bracket of travelling wave tube electron gun |
| 08/01/2012 | CN102625921A Method and apparatus for retrieving a phase of a wavefield |
| 07/31/2012 | US8232749 Dual slot resonance coupling for accelerators |
| 07/26/2012 | WO2012098391A1 Electron tube |
| 07/26/2012 | US20120187833 Device for generating hyperfrequency waves having a cathode whereof each end is connected to a voltage source |
| 07/26/2012 | US20120187832 High frequency helical amplifier and oscillator |
| 07/25/2012 | EP2478407A1 Method and apparatus for retrieving a phase of a wavefield |
| 07/25/2012 | CN102610470A Magnetron and semiconductor equipment |
| 07/25/2012 | CN102605192A Preparation method for oxygen-free copper tube for magnetron |
| 07/24/2012 | US8228007 Microwave supplying apparatus and microwave plasma system |
| 07/19/2012 | US20120181930 High frequency helical amplifier and oscillator |
| 07/19/2012 | US20120181928 Solid state klystron |
| 07/19/2012 | US20120181927 High frequency helical amplifier and oscillator |
| 07/18/2012 | CN102598190A High frequency cathode heater supply for a microwave source |
| 07/17/2012 | US8221179 Method of making arrays of thin sheet microdischarge devices |
| 07/12/2012 | US20120176034 High frequency helical amplifier and oscillator |
| 07/12/2012 | DE102010063685B4 Magnetronanordnung mit einem Hohltarget Magnetron with a hollow target |
| 07/12/2012 | DE102010031259B4 Stützeinrichtung für eine Magnetronanordnung mit einem rotierenden Target Support device for a magnetron with a rotating target |
| 07/12/2012 | DE102009056241B4 Stützeinrichtung für eine Magnetronanordnung mit einem rotierenden Target Support device for a magnetron with a rotating target |
| 07/11/2012 | CN1871764B Method and apparatus for bi-planar backward wave oscillator |
| 07/11/2012 | CN102568983A Method for implementing dual-switch grid-control TWT (Traveling Wave Tube) modulator with high pulse repetition frequency and low power consumption on basis of MOS (Metal Oxide Semiconductor) tube |
| 07/11/2012 | CN101567291B Magnetron |
| 07/04/2012 | EP2472555A1 Device for the generation of hyperfrequency waves, comprising a plurality of magnetrons |
| 07/04/2012 | EP2472554A1 Microwave generating apparatus having a cathode, each extremity thereof being connected to a voltage source |
| 07/04/2012 | CN202307779U Externally-heated high-temperature traveling wave tube |
| 07/04/2012 | CN102543631A Carbon-oxygen-free copper multi-stage depressed collector and manufacturing method thereof |
| 07/04/2012 | CN101770921B Frequency-multiplier klystron and manufacture method thereof |
| 06/27/2012 | CN102522299A Electromagnetic band gap structure, electromagnetic band gap high-impedance substrate and planar travelling wave tube |
| 06/27/2012 | CN102005354B Pre-bunching high-power gyro traveling wave tube amplifier |
| 06/27/2012 | CN101444008B Wireless network system |
| 06/21/2012 | DE102010063685A1 Magnetronanordnung mit einem Hohltarget Magnetron with a hollow target |
| 06/20/2012 | CN102509687A PCMS (plasma discharge CROSSATRON modulator switch) transistor with grid auxiliary screens |
| 06/20/2012 | CN101689463B High frequency helical amplifier and oscillator |
| 06/14/2012 | US20120146504 Seal and Fixation Assembly for a Rotating Cylindrical Magnetron Electrode |
| 05/31/2012 | US20120133280 Coupled Cavity Traveling Wave Tube |
| 05/30/2012 | CN101944467B Collector of traveling wave tube |
| 05/23/2012 | EP2454748A1 Device for preventing parasitic oscillations in electron beam tubes |
| 05/17/2012 | US20120119646 helical slow-wave structure |
| 05/15/2012 | US8179048 High frequency helical amplifier and oscillator |
| 05/15/2012 | US8179045 Slow wave structure having offset projections comprised of a metal-dielectric composite stack |
| 05/09/2012 | CN102446677A Method for inhibiting grid emission of pulsed travelling wave tube |
| 05/02/2012 | EP2446456A1 Magnetically insulated cold-cathode electron gun |
| 04/25/2012 | EP2445105A1 Power management system for dual travelling wave tube amplifier |
| 04/25/2012 | EP2445103A1 Power management system for dual travelling wave tube amplifier |
| 04/25/2012 | CN202205696U 一种场分布均匀的磁控管 A field distribution of the magnetron |
| 04/25/2012 | CN202205695U 一种输出功率高的磁控管 An output power of high-magnetron |
| 04/25/2012 | CN202205694U 一种可实现微波设备小型化的磁控管 Which can realize miniaturization of the magnetron microwave equipment |
| 04/25/2012 | CN202205693U 一种磁控管 A magnetron |
| 04/25/2012 | CN101894723B 一种空间行波管收集极辐射散热器 A spatial traveling wave tube collector radiator |
| 04/19/2012 | WO2012048473A1 Method and system for temporal focusing and temporal alignment of ultra-short electron bunch |
| 04/17/2012 | US8159137 Magnetron |
| 04/05/2012 | US20120081003 Terahertz interaction circuit having ridged structure |
| 04/05/2012 | DE102009051056B4 Verfahren zum Wiederherstellen des Betriebszustandes der Entladung beim Magnetronsputtern und Schaltung zur Durchführung des Verfahrens A method for restoring the operating state of the discharge in the magnetron sputtering and circuit for carrying out the method |
| 04/04/2012 | CN102403180A 一种分布作用太赫兹振荡器 Role in a distributed terahertz oscillator |
| 03/20/2012 | US8138460 Radio frequency phototube |
| 03/14/2012 | EP2335266B1 Microwave tube with a device for extracting the ions generated in the tube |
| 02/22/2012 | EP2420448A1 Absorbing dome for a radiating collector tube |
| 02/22/2012 | CN202150440U Magnetron |
| 02/21/2012 | US8120258 Magnetron |
| 02/14/2012 | US8115392 Device for generation of microwaves |
| 02/02/2012 | WO2012013658A1 Device for generating thz radiation with free electron beams |
| 02/02/2012 | US20120025703 Device for generation of microwaves |
| 02/02/2012 | CA2806448A1 Device for generating thz radiation with free electron beams |
| 02/01/2012 | EP2413343A1 Device for generating THz radiation with free electron beams |
| 02/01/2012 | CN102339711A Magnetron capable of realizing miniaturization of microwave equipment |
| 02/01/2012 | CN102339710A Magnetron |
| 02/01/2012 | CN102339709A Magnetron with uniform field distribution |
| 01/24/2012 | CA2593586C Dual energy source loss-on-drying instrument |
| 01/18/2012 | CN102054645B Wideband traveling wave tube slow wave system and fabrication method thereof |
| 01/18/2012 | CN101964290B Multi-stage depressed collector material and preparation and surface treatment method thereof |
| 01/18/2012 | CN101930886B Dual-mode gyrotron traveling wave tube amplifier |
| 01/12/2012 | DE102010031205A1 Magnetron device, has magnet system arranged inside pipe target and extended with coating material, where outer side of coating material-free end region of support tube is made from reduced sputteringability material |
| 01/11/2012 | CN202111052U Fluctuant waveguide slow wave structure |
| 01/11/2012 | CN102315064A Magnetron and thin film deposition treatment equipment applying same |
| 01/04/2012 | CN202103007U Water cooling magnetron |
| 12/29/2011 | DE102011014982A1 Magnetron Magnetron |