| Patents for H01J 19 - Details of vacuum tubes of the types covered by group (1,326) |
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| 03/20/2002 | CN1340479A Low-temp plastic-removing process in preparing special-alpha-Al2O3 ceramic device |
| 03/20/2002 | CN1340475A Alpha-Al2O3 ceramic for electric vacuum |
| 03/06/2002 | EP1184888A1 On-chip vacuum tube device and process for making the device |
| 02/05/2002 | US6344674 Flash memory using micro vacuum tube technology |
| 12/27/2001 | WO2001099146A2 Process for manufacturing electron field emitters |
| 12/20/2001 | WO2001097246A1 A cold cathode |
| 11/27/2001 | US6323831 Electron emitting device and switching circuit using the same |
| 11/14/2001 | EP0726589B1 Field emission cathode and a device based thereon |
| 10/31/2001 | EP1149405A1 Flat light source |
| 10/24/2001 | EP1147538A1 Method for controlling a structure comprising a source of field emitting electrons |
| 10/23/2001 | US6306314 Evaporable getter device with reduced activation time |
| 09/12/2001 | EP0868752A4 Integrated circuit devices and methods employing amorphous silicon carbide resistor materials |
| 09/05/2001 | EP1129465A1 High voltage standoff, current regulating, hollow electron beam switch tube |
| 08/02/2001 | US20010010649 Novel flash memory using micro vacuum tube technology |
| 07/31/2001 | US6268229 Emitting electrons |
| 07/19/2001 | DE10046532A1 UV high vacuum electron tube has flat shape with pulsation of electron emission by pulsation of UV light directed onto cathode and HF chopping of anode current |
| 05/22/2001 | US6236261 Multi-driving apparatus by a multi-level detection and a method for controlling the same |
| 05/22/2001 | US6236164 Current sensing in vacuum electron devices |
| 05/17/2001 | WO2001035434A1 Method for producing an emitting cathode using sol-gel technique and resulting cathode |
| 05/09/2001 | CN1294760A Vacuum field transistor |
| 05/03/2001 | WO2001031672A1 Method for controlling a structure comprising a source of field emitting electrons |
| 04/11/2001 | CN1290950A Field emitting device |
| 04/10/2001 | US6214651 Making vacuum diode by providing collector and emitter, wherein at least one of said collector or emitter comprises doped carbonaceous material to reduce threshold voltage for emission of electrons from said collector or emitter |
| 04/04/2001 | EP1089310A2 Field emission device |
| 04/03/2001 | US6212104 Flash memory using micro vacuum tube technology |
| 03/27/2001 | US6208091 Current sensing in vacuum electron devices |
| 03/07/2001 | EP0960430A4 Improved thermionic electric converters |
| 02/27/2001 | US6194829 Micro vacuum tube with cap seal |
| 12/05/2000 | US6157123 Flat panel display typically having transition metal oxide in ceramic core or/and resistive skin of spacer |
| 11/22/2000 | CN1058833C Filament power supply circuit for vacuum fluorescent display tube |
| 11/15/2000 | EP1052680A1 Pulse mode electron generator |
| 10/31/2000 | US6139388 Method of forming a frit seal between a stem and a neck of a cathode ray tube during manufacturing of a cathode ray tube |
| 10/17/2000 | US6132278 Mold method for forming vacuum field emitters and method for forming diamond emitters |
| 10/03/2000 | US6127779 High voltage standoff, current regulating, hollow electron beam switch tube |
| 07/20/2000 | WO2000042635A1 Flat light source |
| 07/20/2000 | CA2360329A1 Flat light source |
| 07/04/2000 | US6083069 Method of making a micro vacuum tube with a molded emitter tip |
| 06/29/2000 | DE19914825A1 Vacuum housing for an electron tube, especially a rotating-anode x-ray tube, has a metallic housing section with an interior high thermal absorption coefficient coating layer |
| 05/30/2000 | US6069436 Boron nitride cold cathode |
| 05/18/2000 | WO2000028569A1 High voltage standoff, current regulating, hollow electron beam switch tube |
| 05/02/2000 | US6057636 Micro power switch using a cold cathode and a driving method thereof |
| 03/28/2000 | US6042771 Method for manufacturing composite insulators |
| 02/29/2000 | US6031250 Integrated circuit devices and methods employing amorphous silicon carbide resistor materials |
| 02/09/2000 | CN1244292A Improved thermionic electric converters |
| 01/26/2000 | EP0974156A4 Microtip vacuum field emitter structures, arrays, and devices, and methods of fabrication |
| 01/26/2000 | EP0974156A1 Microtip vacuum field emitter structures, arrays, and devices, and methods of fabrication |
| 01/12/2000 | CN1241294A Surface electron display device and fabrication process |
| 12/01/1999 | EP0960430A1 Improved thermionic electric converters |
| 11/16/1999 | US5985067 Formation of spacers suitable for use in flat panel displays |
| 11/09/1999 | US5981071 Doped diamond for vacuum diode heat pumps and vacuum diode thermionic generators |
| 11/02/1999 | US5977693 Micro-vacuum device |
| 09/30/1999 | WO1999049520A1 Vacuum field transistor |
| 08/24/1999 | US5942834 Thermionic electric converters |
| 08/10/1999 | US5936334 Matrix body impregnated with an alkaline earth compound whose surface is provided with a top coat comprising a high melting point metal, such as particularly tungsten, and scandium. |
| 08/10/1999 | US5936257 Thin-film electron emitter device having a multi-layer top electrode for suppressing degradation of an insulating layer and application apparatus using the same |
| 07/06/1999 | US5919070 Vacuum microelectronic device and methodology for fabricating same |
| 06/29/1999 | US5916396 Forming a laminated wafer of electrically insulating ceramic |
| 05/12/1999 | CN1043341C Process for producing a gastight soldered joint and use of the process in the production of components with a vacuum-tight casing |
| 04/13/1999 | US5894197 Device for attenuating unwanted waves in an electron tube |
| 03/18/1999 | WO1999013484A1 Doped diamond for vacuum diode heat pumps and vacuum diode thermionic generators |
| 02/17/1999 | CN1208240A Method of manufacturing cathode ray-tube and heating device for performing same |
| 02/02/1999 | US5865930 Formations of spacers suitable for use in flat panel displays |
| 01/19/1999 | US5861058 Composite structure and method for the production thereof |
| 01/13/1999 | CN1204853A Filament power supply circuit for vacuum fluorescent display tube |
| 12/23/1998 | EP0885453A2 Electronic tube system and method of manufacturing same |
| 12/08/1998 | US5847496 Field emission device including a resistive layer |
| 11/24/1998 | US5841219 Microminiature thermionic vacuum tube |
| 10/20/1998 | US5825122 Field emission cathode and a device based thereon |
| 10/14/1998 | CN1040263C Cathode of electron tube |
| 10/08/1998 | WO1998044529A1 Microtip vacuum field emitter structures, arrays, and devices, and methods of fabrication |
| 10/07/1998 | EP0868752A1 Integrated circuit devices and methods employing amorphous silicon carbide resistor materials |
| 10/07/1998 | CN1195183A Evaporable getter device with reduced activation time |
| 09/16/1998 | CN1193179A Multipole electron tube |
| 08/19/1998 | EP0859396A1 Evaporable getter device with reduced activation time |
| 07/29/1998 | EP0755568B1 Vacuum microelectronic device and methodology for fabricating same |
| 07/23/1998 | WO1998032155A1 Improved thermionic electric converters |
| 07/14/1998 | US5780954 Thermionic electric converters |
| 06/11/1998 | WO1998025287A1 Electron source and method for making the same |
| 05/19/1998 | US5754009 Low cost system for effecting high density interconnection between integrated circuit devices |
| 05/19/1998 | US5753272 Apparatus for manufacturing composite insulators |
| 04/15/1998 | CN1178997A Improved field transmitter device with charge discharging resisting layer |
| 04/14/1998 | US5739637 Cold cathode vacuum discharge tube |
| 03/25/1998 | EP0818050A4 Boron nitride cold cathode |
| 03/17/1998 | US5727976 Method of producing micro vacuum tube having cold emitter |
| 03/10/1998 | US5726526 Display device having a support structure for a wire cathode |
| 03/10/1998 | US5725408 Switches, carbon vapor deposition |
| 01/14/1998 | EP0818051A1 Spacer structures for use in flat panel displays and methods for forming same |
| 01/14/1998 | EP0818050A1 Boron nitride cold cathode |
| 01/14/1998 | EP0711451B1 Device for attenuating interfering waves in an electron tube and electron tube comprising same |
| 01/06/1998 | US5705881 Very high power vacuum electron tube with anode cooled by forced circulation |
| 12/04/1997 | WO1997033295A3 Electronic tube system and method of manufacturing same |
| 11/19/1997 | CN1165393A Thin-film electron emitter device and application equipment using the same |
| 11/13/1997 | WO1997042645A1 Field emission triode, a device based thereon, and a method for its fabrication |
| 11/13/1997 | WO1997014168A3 Cold cathode vacuum discharge tube |
| 11/05/1997 | EP0514474B1 Cold cathode field emission device with integral emitter ballasting |
| 10/07/1997 | US5675212 A plate between light emitter and electron emitter comprising a transition metal oxide dispersed in ceramics; separators, supports |
| 09/24/1997 | EP0797233A2 Thin-film electron emitter device and application equipment using the same |
| 09/12/1997 | WO1997033295A2 Electronic tube system and method of manufacturing same |
| 09/11/1997 | DE19609234A1 Röhrensysteme und Herstellungsverfahren hierzu Tube systems and manufacturing method therefor |
| 08/26/1997 | US5661281 Vacuum-type interrupter having an annular insulator |