Patents for H01J 21 - Vacuum tubes (739) |
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07/13/1993 | US5227699 Recessed gate field emission |
07/06/1993 | US5225735 Electron tube with cylindrical hexagonal grid aligned with rhombus shaped cathode wires |
06/09/1993 | EP0544663A1 Process and structure of an integrated vacuum microelectronic device. |
06/08/1993 | US5217401 Method of manufacturing a field-emission type switching device |
06/02/1993 | EP0544516A1 Apparatus for field emission device electrostatic electron beam focussing |
05/25/1993 | US5214346 Microelectronic vacuum field emission device |
05/19/1993 | CN1072286A Electron device employing low/negative electron affinity electron source |
05/19/1993 | CN1020828C Encapsulated field emission device |
04/27/1993 | US5206565 High-power low-voltage tetrode having a full walled matrix cathode and a control grid spacing of less than 1 mm |
04/20/1993 | US5204588 Quantum phase interference transistor |
04/20/1993 | US5203731 Process and structure of an integrated vacuum microelectronic device |
04/07/1993 | EP0535953A2 Field-emission type electronic device |
03/10/1993 | EP0530981A1 Switching circuits employing field emission devices |
03/10/1993 | CN1069828A 多极场致电子发射器件及其制造方法 Multiple electrode field electron emission device and manufacturing method thereof |
03/09/1993 | US5192240 Method of manufacturing a microelectronic vacuum device |
03/04/1993 | WO1993004496A1 Recessed gate field emission device |
03/02/1993 | US5191217 Method and apparatus for field emission device electrostatic electron beam focussing |
02/03/1993 | EP0525764A2 Method of forming a vacuum micro-chamber for encapsulating a microelectronics device |
02/03/1993 | EP0525763A1 A method for building a vacuum microelectronics device |
01/26/1993 | US5181874 Method of making microelectronic field emission device with air bridge anode |
01/20/1993 | EP0523980A1 A field emission device and method for forming |
01/20/1993 | EP0523494A1 An electron device employing a low/negative electron affinity electron source |
01/19/1993 | CA2070767A1 Electron device employing a low/negative electron affinity electron source |
12/29/1992 | US5175468 Device for generating an on-off modulation electron beam |
12/22/1992 | US5173697 Digital-to-analog signal conversion device employing scaled field emission devices |
12/22/1992 | US5173635 Bi-directional field emission device |
12/22/1992 | US5173634 Current regulated field-emission device |
11/26/1992 | DE4112436A1 Field emission diode for protecting electronic circuits from overvoltages - with single crystal silicon@ anode substrate and field emission cathode bridge |
11/25/1992 | EP0514474A1 Cold cathode field emission device with integral emitter ballasting |
11/24/1992 | US5166575 Grid tube with coupled-cavity output, with coupling element integral with said tube |
11/19/1992 | EP0513777A2 Multiple electrode field electron emission device and process for manufacturing it |
10/20/1992 | US5156988 Operable at room temperature |
10/13/1992 | US5155420 Switching circuits employing field emission devices |
09/22/1992 | US5150019 Integrated circuit electronic grid device and method |
09/15/1992 | US5148079 Planar type cold cathode with sharp tip ends and manufacturing method therefor |
09/15/1992 | US5148078 Field emission device employing a concentric post |
09/08/1992 | US5145438 Method of manufacturing a planar microelectronic device |
08/25/1992 | US5142184 Cold cathode field emission device with integral emitter ballasting |
08/23/1992 | WO1992015111A1 Electron amplifier and method of manufacture therefor |
08/23/1992 | CA2104679A1 Electron amplifier and method of manufacture therefor |
08/12/1992 | EP0498254A1 Microelectronic ballistic transistor and process of manufacturing the same |
08/04/1992 | US5136205 Microelectronic field emission device with air bridge anode |
07/29/1992 | EP0496576A2 Field emission device with vertically integrated active control |
07/29/1992 | EP0496008A1 Controllable high-power electron tube |
07/22/1992 | EP0495436A2 Quantum phase interference transistor |
07/22/1992 | EP0495227A1 Method of forming planar vacuum microelectronic devices with self aligned anode |
07/15/1992 | CN1062813A Design and compound method of multivariant power emission electron tube |
07/07/1992 | US5127990 Vacuum microtubes |
06/17/1992 | EP0490536A1 Vacuum microelectronic field-emission device |
06/09/1992 | US5121087 Electronic resonator employing an FED resonator element |
06/03/1992 | EP0488972A2 Device for generating an on-off modulated electron beam |
05/29/1992 | CA2030972A1 Photon generator for micro-wave signals |
05/12/1992 | US5112436 Method of forming planar vacuum microelectronic devices with self aligned anode |
03/24/1992 | US5099332 Grid tube with increased efficiency |
02/19/1992 | CA2090391A1 Electon beam device |
01/29/1992 | CN1058294A Process and structure of integrated vacuum microelectronic device |
01/28/1992 | US5083958 Field emitter structure and fabrication process providing passageways for venting of outgassed materials from active electronic area |
01/22/1992 | EP0467572A2 Field emitter structure and fabrication process providing passageways for venting of outgassed materials from active electronic area |
01/19/1992 | WO1992002030A1 Process and structure of an integrated vacuum microelectronic device |
01/07/1992 | US5079476 Encapsulated field emission device |
12/24/1991 | US5075595 Field emission device with vertically integrated active control |
12/11/1991 | EP0460173A1 Field emitter structure and fabrication process |
11/20/1991 | CN1056377A Cold cathode field emission device with integral emitter ballasting |
11/20/1991 | CN1056375A Encapsulated field emission device |
11/13/1991 | EP0456550A1 Electron tube with cylindrical grid |
11/05/1991 | US5063323 Field emitter structure providing passageways for venting of outgassed materials from active electronic area |
10/23/1991 | EP0452425A1 Switched anode field emission device |
10/10/1991 | DE4010909A1 Cold-emission protection diode - has air-isolated electrodes with micrometric separation to prevent electrical discharge |
09/10/1991 | US5048068 Magnetically operated pulser |
09/04/1991 | EP0444670A2 Planar type cold cathode with sharp tip ends and manufacturing method therefor |
08/28/1991 | EP0443865A1 Field emission device and method of manufacture therefor |
08/22/1991 | WO1991012625A1 Encapsulated field emission device |
08/22/1991 | WO1991012624A1 Cold cathode field emission device with integral emitter ballasting |
08/06/1991 | US5038082 Vacuum switch apparatus |
08/06/1991 | US5038070 Field emitter structure and fabrication process |
07/11/1991 | WO1991010252A1 Field emitter structure and fabrication process |
06/12/1991 | EP0432045A1 Grid tube with better efficiency |
05/22/1991 | CN2077590U High-voltage d.c inverse transform tube |
05/07/1991 | CA1283946C Very high speed integrated microelectronic tubes |
04/30/1991 | US5012482 Gas laser and pumping method therefor using a field emitter array |
04/30/1991 | US5012153 Split collector vacuum field effect transistor |
04/24/1991 | CN1050946A Electron tube |
04/17/1991 | EP0422451A1 Electron tube |
03/26/1991 | US5003216 Electron amplifier and method of manufacture therefor |
02/21/1991 | WO1991002371A1 Switched anode field emission device |
02/19/1991 | US4994708 Cold cathode device |
02/12/1991 | US4993033 High power fast switch |
02/05/1991 | CA1279890C High-power switch tube with faraday cage cavity anode |
01/22/1991 | US4986787 Method of making an integrated component of the cold cathode type |
01/09/1991 | EP0407252A1 Grid tube with a coupled-cavity output and the coupling element integrated within the tube |
01/09/1991 | EP0406886A2 Field-emission type switching device and method of manufacturing it |
01/08/1991 | US4983878 Field induced emission devices and method of forming same |
09/12/1990 | EP0386710A1 Vacuum switch apparatus |
09/11/1990 | US4956574 Switched anode field emission device |
05/08/1990 | CA1268806A1 Electron tube with mesh or cage cathode |
04/04/1990 | EP0362017A1 Device such as diode, triode or flat and integrated cathodoluminescent display device, and manufacturing process |
03/08/1990 | DE3924745A1 Field emission diode serving as heavy current switch - has cathode emitting surfaces formed by edges of thin conducting layers on insulating support |
01/10/1990 | EP0350378A1 Electronic micro component self-sealed under vacuum, especially a diode or triode, and its manufacturing process |
10/31/1989 | US4877996 Electron tube with control electrode remote from anode |
08/08/1989 | US4855636 Micromachined cold cathode vacuum tube device and method of making |