Patents
Patents for H01J 3 - Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps (4,773)
04/1991
04/17/1991EP0422451A1 Electron tube
04/16/1991US5008549 High performance, vacuum compatible electromagnetic lens coil
04/10/1991EP0421648A2 A surface discharge plasma cathode electron beam generating assembly
04/07/1991CA2027175A1 Surface discharge plasma cathode electron beam generating assembly
03/1991
03/26/1991US5003226 Plasma cathode
03/26/1991US5003178 Large-area uniform electron source
03/20/1991EP0417639A1 Electron bream producing device for electron gun
03/20/1991EP0417638A2 Electron beam producing device, particularly for an electron gun
03/07/1991DE3928390A1 Plasma supporting source for charged particles - produces beams of desired current amplitude, thickness, cross=section and duration
02/1991
02/19/1991US4994709 Method for making a cathader with integral shadow grid
01/1991
01/24/1991WO1991001038A1 Method of generating high-intensity electron beam
01/22/1991US4987377 Field emitter array integrated distributed amplifiers
01/16/1991EP0277203B1 System for controlling the respective emission currents from a plurality of cathodes of an ion source device and ion propulsion motor
01/09/1991EP0406886A2 Field-emission type switching device and method of manufacturing it
12/1990
12/12/1990EP0401658A1 Scanning tunneling microscope with arrangements for detecting electrons coming from the sample
12/12/1990CN1047757A Electric discharge element
12/05/1990EP0400751A1 Electric discharge element
11/1990
11/28/1990EP0398995A1 Plasma x-ray tube, in particular for x-ray preionizing of gas lasers, and use as electron gun.
11/21/1990CN1047167A Device for generating electrons, and display device
11/21/1990CN1010530B Coating method for making emission filament used for ionization in mass spectrum field
11/04/1990WO1990013905A1 Energy conversion using charge particles
11/04/1990CA2054724A1 Energy conversion using charge particles
10/1990
10/31/1990EP0395158A1 Device for generating electrons, and display device
10/30/1990US4966787 Method of creating isolated plates on the inside surface of a metallized substrate
10/28/1990CA2015396A1 Device for generating electrons, and display device
10/04/1990WO1990011609A1 Field-effect electron source crt gun
09/1990
09/26/1990EP0389270A2 Electron gun with integral shadow grid
09/26/1990EP0388984A2 Electron-beam generator and image display apparatus making use of it
09/22/1990CA2012708A1 Electron gun with integral shadow grid
09/12/1990EP0387145A1 Electron beam generator and electronic devices using such a generator
09/11/1990US4956578 Surface conduction electron-emitting device
09/04/1990US4955045 Plasma X-ray tube, in particular for X-ray preionization of gas lasers and method for produicng X-radiation with such an X-ray tube
09/04/1990US4954751 Radio frequency hollow cathode
09/04/1990CA1273497A1 Emission current control system for multiple hollow cathode devices
07/1990
07/17/1990US4942339 Intense steady state electron beam generator
07/04/1990EP0376825A1 Electron source of the field emission type
06/1990
06/26/1990CA1270895A1 Conductive coated semiconductor electrostatic deflection plates
06/05/1990US4931700 Electron beam gun
05/1990
05/31/1990WO1990005990A1 Large-area uniform electron source
05/08/1990US4924101 Charged particle source
04/1990
04/11/1990CN1007539B Emitting current control system of multi-hollow cathodes
03/1990
03/27/1990US4912738 Magnetically energized pulser
03/20/1990US4910435 Remote ion source plasma electron gun
02/1990
02/27/1990US4904895 Electron emission device
02/13/1990US4901028 Field emitter array integrated distributed amplifiers
02/13/1990US4900982 Cathode assembly
02/08/1990WO1990001250A1 Remote ion source plasma electron gun
01/1990
01/10/1990EP0350358A1 Electron gun and electron tube including such an electron gun
01/10/1990EP0350357A1 Superconductor device for electron injection into an electronic tube
12/1989
12/12/1989US4886992 Electron source with magnetic means
11/1989
11/30/1989DE3827411C1 Hollow-beam electron gun for generating a hollow electron beam having low-scattering transverse velocity component
11/29/1989CN1037614A Coating method for making emission filament used for ionization in mass spectrum field
11/16/1989WO1989011157A1 Automatically focusing field emission electrode
11/08/1989EP0340258A1 Microwave integrated distributed amplifier with field emission triodes
10/1989
10/19/1989WO1989010004A1 Plasma x-ray tube, in particular for x-ray preionizing gas lasers, process for producing x-ray radiation with said x-ray tube and use of said x-ray tube
10/19/1989WO1989010003A1 Plasma x-ray tube, in particular for x-ray preionizing of gas lasers, and use as electron gun
10/17/1989US4874981 Automatically focusing field emission electrode
10/11/1989EP0336282A1 Plasma X-ray tube, especially for X-ray-preionization of gas lasers, method for generating X-rays with such an X-ray tube and usage of the latter
10/10/1989US4873468 Multiple sheet beam gridded electron gun
10/03/1989US4871918 Hollow-anode ion-electron source
08/1989
08/15/1989US4858237 Electron beam apparatus
07/1989
07/20/1989DE3817897A1 Die erzeugung und handhabung von ladungsgebilden hoher ladungsdichte The generation and handling of cargo structures of high charge density
07/20/1989DE3803737A1 Elektronenbuendel sowie anordnung zum erzeugen derselben Elektronenbuendel and arrangement for producing the same
07/19/1989CN1034092A Production and manipulation of high charge density
07/19/1989CN1034091A Production and manipulation of high charge density
07/13/1989WO1989006434A1 Production and manipulation of high charge density
07/12/1989EP0323898A2 Cathod assembly for mounting in an electron gun
07/11/1989US4847502 Dual cathode system for electron beam instruments
07/04/1989US4845365 Process and apparatus for producing electrons using a field coupling and the photoelectric effect
05/1989
05/30/1989US4835438 Source of spin polarized electrons using an emissive micropoint cathode
05/05/1989WO1989004087A1 Microwave integrated distributed amplifier with field emission triodes
04/1989
04/25/1989US4825082 Electron emitting apparatus
04/19/1989EP0312007A2 Electron beam emitting device and image displaying device by use thereof
04/18/1989US4823003 Charged particle optical systems having therein means for correcting aberrations
03/1989
03/15/1989EP0185045B1 Wire-ion-plasma electron gun employing auxiliary grid
02/1989
02/07/1989US4803398 Electron gun with one directly heatable and one indirectly heatable cathode
02/01/1989EP0301545A2 Surface conduction electron-emitting device
01/1989
01/25/1989EP0300932A1 Electron source
01/18/1989EP0185074B1 Radial geometry electron beam controlled switch utilizing wire-ion-plasma electron source and such a source
01/17/1989US4798957 Electron beam apparatus comprising an anode which is included in the cathode/Wehnelt unit
01/17/1989CA1249012A1 Electron-beam device and semiconductor device for use in such an electron-beam device
01/11/1989EP0298817A1 Process and device for the production of electrons using a field coupling and the photoelectric effect
01/03/1989US4795912 Method and apparatus for correcting chromatic aberration in charged particle beams
12/1988
12/27/1988US4794412 Vertical line width control ionographic system
11/1988
11/22/1988US4786844 Wire ion plasma gun
11/09/1988EP0290026A1 Electron emission device
10/1988
10/25/1988US4780684 Microwave integrated distributed amplifier with field emission triodes
10/11/1988US4777370 Electron gun operating by secondary emission under ionic bombardment
09/1988
09/14/1988EP0018402B1 Zero-bias gridded gun
08/1988
08/31/1988EP0279952A1 Charged particle source
08/17/1988EP0278405A2 Electron emission element and method of manufacturing the same
08/10/1988EP0277203A1 System for controlling the respective emission currents from a plurality of cathodes of an ion source device and ion propulsion motor.
08/09/1988US4763003 Method and apparatus for correcting high-order abberations in particle beams
07/1988
07/26/1988US4760567 Electron beam memory system with ultra-compact, high current density electron gun
07/05/1988US4755722 Ion plasma electron gun
06/1988
06/22/1988EP0272178A1 Spin-polarized electron source using a multiple microtip emission cathode, use in electron matter or electron particle interaction physics, plasma physics, electron microscopy
06/22/1988CN87105372A Emitting current control system of multi-hollow cathodes
06/07/1988US4749911 Ion plasma electron gun with dose rate control via amplitude modulation of the plasma discharge
06/07/1988US4749906 Multiple beam lasertron
05/1988
05/31/1988US4748378 Ionized channel generation of an intense-relativistic electron beam
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