| Patents for H01J 23 - Details of transit-time tubes of the types covered by group (3,921) |
|---|
| 05/09/1989 | US4829261 Circuitless electron beam amplifier (CEBA) |
| 05/05/1989 | WO1989004051A1 Microwave tube with directional coupling of an input locking signal |
| 05/03/1989 | EP0314369A2 Travelling wave push-pull electron beam deflection structure having voltage gradient compensation |
| 05/03/1989 | EP0313582A1 Installation for heat treatment, in particular for drying leather and similar. |
| 05/02/1989 | US4827192 Output circuit for klystron and klystron with an output circuit of this type |
| 04/19/1989 | EP0312446A1 Cooling arrangement for microwave circuits |
| 04/11/1989 | US4820955 Traveling wave tube comprising periodic permanent magnetic focusing system with glass/epoxy retaining means |
| 04/11/1989 | US4820688 Ceramics; high temperature electroconductivity |
| 03/21/1989 | US4814938 High voltage capacitor |
| 03/14/1989 | US4812707 Traveling wave push-pull electron beam deflection structure having voltage gradient compensation |
| 03/07/1989 | US4811161 Through-type capacitor and magnetron using same |
| 03/07/1989 | US4810925 Directly heated cathodes |
| 02/28/1989 | US4807355 Method of manufacture of coupled-cavity waveguide structure for traveling wave tubes |
| 02/07/1989 | US4803397 Indirectly heated dispenser metal capillary cathode for electrical discharge devices |
| 01/25/1989 | EP0300995A2 Rod shaped magnetron or sputter cathode arrangement, sputtering process, device for implementing the process and tube shaped target |
| 01/25/1989 | EP0300608A2 Magnetrons |
| 01/24/1989 | US4800353 Micropole undulator |
| 01/24/1989 | US4800322 Broadband klystron cavity arrangement |
| 01/17/1989 | US4798993 Electron gun for electronic tubes |
| 01/11/1989 | EP0298817A1 Process and device for the production of electrons using a field coupling and the photoelectric effect |
| 01/10/1989 | US4797596 Filter apparatus for a magnetron |
| 01/04/1989 | EP0297653A1 Switching power supply for the helix of a TWT |
| 12/28/1988 | CA1247742A Tunable magnetron |
| 12/27/1988 | US4794304 Magnetron with cooling fin structure |
| 12/27/1988 | US4794303 Axisymmetric electron collector with off-axis beam injection |
| 12/20/1988 | US4792654 Method and apparatus for manufacturing slow-wave structures for traveling-wave tubes |
| 12/14/1988 | EP0294401A1 Fast warm-up cathode arrangement. |
| 11/17/1988 | EP0291487A2 Wide-band extended interaction device |
| 11/09/1988 | EP0290148A2 Surface coating with very high rf loss for microwave components |
| 10/18/1988 | US4778561 Electron cyclotron resonance plasma source |
| 10/11/1988 | CA1242991A1 Magnetron sputter coating source for both magnetic and nonmagnetic target materials |
| 09/20/1988 | US4772823 Magnetic anode and a method of manufacturing the same |
| 09/14/1988 | EP0018402B1 Zero-bias gridded gun |
| 09/06/1988 | USH527 Gyro-TWT stabilization method using coupled lossy waveguide |
| 08/30/1988 | US4767372 Process for the production of a porous pressed part |
| 08/24/1988 | EP0279112A1 Tunable magnetrons |
| 08/23/1988 | US4765056 Method of manufacture of helical waveguide structure for traveling wave tubes |
| 08/16/1988 | US4764710 High-efficiency broad-band klystron |
| 08/09/1988 | US4763043 P-N junction semiconductor secondary emission cathode and tube |
| 08/03/1988 | EP0276933A1 Beam collector with low electrical leakage |
| 08/03/1988 | EP0276446A2 Magnetron |
| 08/02/1988 | US4761584 Strong permanent magnet-assisted electromagnetic undulator |
| 07/27/1988 | EP0276090A1 Charge-particle collector |
| 07/26/1988 | US4760312 Dense silicon carbide microwave absorber for electron linear accelerator |
| 07/20/1988 | EP0274950A1 Broad-band coupling device between the delay line of a travelling-wave tube and the external energy-transmitting circuit, and travelling-wave tube comprising such a device |
| 06/21/1988 | US4752720 Magnetron with fifth harmonic suppression projection in through capacitor seal |
| 06/16/1988 | WO1988004468A1 Fast warm-up cathode arrangement |
| 06/16/1988 | EP0160094A4 Tuning apparatus for a radio frequency power device. |
| 06/14/1988 | US4751437 Wide bandwidth linear motor system |
| 06/08/1988 | EP0270005A2 High-voltage input terminal structure of a magnetron for a microwave oven |
| 06/07/1988 | US4749906 Multiple beam lasertron |
| 06/02/1988 | WO1988004102A1 Method for securing a slow-wave structure in enveloping structure with crimped spacers |
| 06/01/1988 | EP0268959A1 Travelling-wave tube with PPM focusing |
| 06/01/1988 | CN87106167A Apparatus for thermal treatment specially for drying of leather and like |
| 06/01/1988 | CN85105676B Arrangement in a tunable magnetron |
| 05/31/1988 | US4748424 Magnetron with frequency control means |
| 05/31/1988 | US4748379 Arrangement in a tunable magnetron |
| 05/31/1988 | US4748378 Ionized channel generation of an intense-relativistic electron beam |
| 05/31/1988 | US4748377 Travelling wave tubes |
| 05/31/1988 | US4748369 Electron gun assembly useful with traveling wave tubes |
| 05/31/1988 | CA1237467A1 Travelling wave tubes |
| 05/25/1988 | EP0268405A2 High-efficiency broad-band klystron |
| 05/24/1988 | US4746839 Side-coupled standing-wave linear accelerator |
| 05/24/1988 | US4746833 Coupled cavity travelling wave tubes |
| 05/24/1988 | US4746054 Method of joining concentric cylinders |
| 05/17/1988 | US4745326 Method of manufacturing integral shadow gridded controlled porosity, dispenser cathodes |
| 05/17/1988 | US4745324 High power switch tube with Faraday cage cavity anode |
| 05/10/1988 | US4743805 Anode assembly of magnetron and method of manufacturing the same |
| 05/04/1988 | CN87106316A Penetrating center type condenser and magnetron adopted this kind condenser |
| 05/03/1988 | US4742272 Magnetron |
| 05/03/1988 | CA1236215A1 Travelling wave or like tubes |
| 05/03/1988 | CA1236179A1 Circular window for ultra-high frequency waveguide |
| 04/27/1988 | CN87107007A Magnetron device |
| 04/20/1988 | EP0264127A2 Magnetron device |
| 04/19/1988 | CA1235456A1 Coupled cavity travelling wave tubes |
| 04/13/1988 | EP0263491A2 Magnetron for microwave oven |
| 04/12/1988 | US4737738 Extended interaction device tuned by movable delay line structure |
| 04/12/1988 | US4737680 Gridded electron gun |
| 03/30/1988 | EP0261198A1 Plasma-anode electron gun. |
| 03/29/1988 | US4734666 Microwave apparatus having coaxial waveguide partitioned by vacuum-tight dielectric plate |
| 03/29/1988 | US4734183 Sputtering cathode on the magnetron principle |
| 03/29/1988 | US4734073 Machining of surface gives sharp, symmetrical microscopic projections |
| 03/22/1988 | US4733131 Multiple-beam klystron |
| 03/22/1988 | US4733124 Cathode structure for magnetron |
| 03/16/1988 | EP0259766A2 Through-type capacitor and magnetron using same |
| 03/16/1988 | EP0259606A1 Electron-beam collector or a transit-time tube |
| 03/10/1988 | WO1988001825A1 Installation for heat treatment, in particular for drying leather and similar |
| 03/09/1988 | EP0258667A1 Electron beam collector for transit-time tubes |
| 03/01/1988 | US4728860 Slidable seal for klystron vacuum tubes |
| 01/20/1988 | EP0253344A2 Sputtering cathode based on the magnetron principle |
| 01/20/1988 | EP0253266A1 Transit time tube collector |
| 01/19/1988 | US4720693 Ridged rectangular waveguide provided with a sealed window |
| 01/19/1988 | US4720659 Magnetron |
| 01/19/1988 | US4720658 Magnetron filter apparatus |
| 01/12/1988 | US4719436 Stabilized chromium oxide film |
| 01/07/1988 | EP0251830A1 Multiple beam lasertron |
| 12/22/1987 | US4714859 Magnetrons |
| 12/16/1987 | EP0249324A2 High-power switch |
| 12/15/1987 | US4712294 Method of forming a helical wave guide assembly by precision coining |
| 12/15/1987 | US4712293 Method for securing a slow-wave structure in enveloping structure with crimped spacers |