204456 ⎘
Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps; Main electrodes; Solid thermionic cathodes Cathodes heated directly by an electric current
Sub-classes:Annular gap cathodes with graphite caps
#2Method for tuning work function using surface photo voltage and producing ultra-low-work-function surfaces, and devices operational therewith
#3Field emission apparatus with superior structural stability and X-ray tube comprising the same
#4Estimation of cathode space current for a thermionic vacuum tube using a polynomial based on a heuristically determined variable representing the grid and plate voltages
#5Receptacle for receiving a plug connector of a high-voltage cable for a microfocus X-ray tube, plug connection for a high-voltage cable
#6Graphene/graphite-based filament for thermal ionization
#7Vacuum electron tube with planar cathode based on nanotubes or nanowires
#8Cathode assembly for use in X-ray generation
#9Ion generation device and ion detection device
#10Focusing electrode for cathode arrangement, electron gun, and lithography system comprising such electron gun
#11Emitter structure, gas ion source and focused ion beam system
#12Cathode arrangement, electron gun, and lithography system comprising such electron gun
#13Electron emission surface for X-ray generation
#14Cathode arrangement, electron gun, and lithography system comprising such electron gun
#15Emitter structure, gas ion source and focused ion beam system
#16Method for fabricating emitter
#17FILAMENT DETECTION CIRCUIT
#18Hall-effect motor in which the temperature of the cathode-heating device is controlled
#19Electron source having a tungsten single crystal electrode
#20Filament for electron source
#21Electron source and electron beam apparatus
#22Electron source
#23X-RAY EMITTING FOIL WITH TEMPORARY FIXING BARS AND PREPARING METHOD THEREFORE
#24Thermionic emitter designed to control electron beam current profile in two dimensions
#25Electron emission device comprising carbon nanotubes yarn and method for generating emission current
#26Method for making thermal electron emitter
#27Thermionic emission device
#28Filament assembly having reduced electron beam time constant
#29Diamond Electron Emission Cathode, Electron Emission Source, Electron Microscope, And Electron Beam Exposure Device
#30Discharge electrode, a discharge lamp and a method for manufacturing the discharge electrode
#31Diamond electron emission cathode, electron emission source, electron microscope, and electron beam exposure device
#32Diamond electron emission cathode, electron emission source, electron microscope, and electron beam exposure device
#33Electrode materials for electric lamps and methods of manufacture thereof
#34Fluorescent lamp cathode and method of making cathodes
#35High brightness thermionic cathode
#36Internal conductively-heated cathode
#37Discharge electrode implemented by a wide bandgap semiconductor and a discharge lamp using the same
#38Cathode with improved work function and method for making the same
#39Electron tubes
#40Low power schottky emitter
#41Low temperature, high-brightness, cathode
#42Method for tuning work function using surface photovoltage and producing ultra-low-work-function surfaces, and devices operational therewith