204455 ⎘
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 characterised by the material with compounds having metallic conductive properties, e.g. lanthanum boride, as an emissive material
ELECTRON GUN USING VIRTUAL SOURCE METHOD
#2REFERENCE ELECTRODE FOR HIGH TEMPERATURE CORROSION SENSOR APPLICATIONS
#3Annular gap cathodes with graphite caps
#4Electron source and production method therefor
#5Emitter structures for enhanced thermionic emission
#6Electron source and production method therefor
#7Electron source and production method therefor
#8Thermionic cathode with even electric field distribution on electron emitting surface
#9High-brightness, long life thermionic cathode and methods of its fabrication
#10Electron gun and electron beam device
#11Electron beam source and method of manufacturing the same
#12MANUFACTURING METHOD OF AN ELECTRON-EMITTING DEVICE, AND MANUFACTURING METHOD OF A LANTHANUM BORIDE FILM
#13CATHODE COMPOSED OF MATERIALS WITH DIFFERENT ELECTRON WORKS FUNCTIONS
#14Electrode materials for electric lamps and methods of manufacture thereof
#15High brightness thermionic cathode
#16Electron guns for electron beam tools
#17High-brightness lanthanum hexaboride cathode and method for manufacturing of cathode
#18Method of reducing work function in carbon coated LaB6 cathodes
#19Thermal-field type electron source composed of transition metal carbide material
#20Thermal-field type electron source composed of transition metal carbide material with artificial facet