H01J1/14 - CPC Classification Index

ClassID:

204451 ⎘

H01J1/14 - CPC Classification

Classification description:

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

Sub-classes:

H01J1/142 » with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material 9
H01J1/144 » with other metal oxides as an emissive material 15
H01J1/146 » with metals or alloys as an emissive material 17
H01J1/148 » with compounds having metallic conductive properties, e.g. lanthanum boride, as an emissive material 15

Recent Application in this class:

20250208231

2025-06-26

ADAPTIVE IMPEDANCE TRACKING

20240339280

2024-10-10

CATHODE BASED ON THE MATERIAL C12A7: E (ELECTRIDE) FOR THERMIONIC ELECTRON EMISSION AND METHOD FOR USING SAME

20240219478

2024-07-04

Adaptive impedance tracking

20220189725

2022-06-16

Electron emitter and method of fabricating same

20210195721

2021-06-24

Compact high-voltage power supply and radiation apparatus systems and methods

20210142975

2021-05-13

Electron emitter and method of fabricating same

20200111656

2020-04-09

Method of making a carbon filament for thermal ionization

20190362926

2019-11-28

Estimation of cathode space current for a thermionic vacuum tube using a polynomial based on a heuristically determined variable representing the grid and plate voltages

20190172674

2019-06-06

Electron emitter and method of fabricating same

#10

20180240637

2018-08-23

Graphene/graphite-based filament for thermal ionization

#11

20160329184

2016-11-10

Array of carbon nanotube micro-tip structures

#12

20160217961

2016-07-28

12CaO-7AlOelectride hollow cathode

#13

20150187534

2015-07-02

Electron emission surface for X-ray generation

#14

20150054398

2015-02-26

Electrode material with low work function and high chemical stability

#15

20140354138

2014-12-04

12CaO-7Al2O3 electride hollow cathode

#16

20140097736

2014-04-10

High-brightness, long life thermionic cathode and methods of its fabrication

#17

20130342106

2013-12-26

Thermionic emission device

#18

20130227749

2013-08-29

Atomic force microscope probe

#19

20130224429

2013-08-29

Carbon nanotube based micro-tip structure and method for making the same

#20

20130221836

2013-08-29

Field emission electron source and field emission device using the same

#21

20130105742

2013-05-02

Impregnated yttric or gadolinium-containing Barium-aluminum-scandate cathodes and their fabrication methods

#22

20130048884

2013-02-28

Agile IR scene projector

#23

20120285586

2012-11-15

Tungsten wire, cathode heater and vibration service lamp filament

#24

20120169210

2012-07-05

ELECTRON-SOURCE ROD, ELECTRON SOURCE AND ELECTRONIC DEVICE

#25

20120064794

2012-03-15

Method for making thermionic electron emission device

#26

20120062100

2012-03-15

Thermionic electron emission device

#27

20110221328

2011-09-15

Thermionic electron emitters/collectors have a doped diamond layer with variable doping concentrations

#28

20110003246

2011-01-06

Electrode and method for manufacturing the same

#29

20100207508

2010-08-19

Thermionic electron emitter, method for preparing same and X-ray source including same

#30

20100148656

2010-06-17

ELECTRON COLUMN USING CNT-TIP AND METHOD FOR ALIGNMENT OF CNT-TIP

#31

20100084055

2010-04-08

TUNGSTEN WIRE, CATHODE HEATER AND VIBRATION SERVICE LAMP FILAMENT

#32

20100039015

2010-02-18

Thermionic emission device

#33

20090289555

2009-11-26

Electron emission device comprising carbon nanotubes yarn and method for generating emission current

#34

20090284124

2009-11-19

CATHODE COMPOSED OF MATERIALS WITH DIFFERENT ELECTRON WORKS FUNCTIONS

#35

20090284121

2009-11-19

CATHODE WITH A SURFACE EMITTER COMPOSED OF ELECTRICALLY CONDUCTIVE CERAMIC

#36

20090258448

2009-10-15

Method for making thermal electron emitter

#37

20090256135

2009-10-15

Thermal electron emitter and thermal electron emission device using the same

#38

20090170394

2009-07-02

Method for making thermionic electron source

#39

20090167138

2009-07-02

Thermionic electron source

#40

20090167137

2009-07-02

Thermionic electron emission device

#41

20090160306

2009-06-25

Thermal electron emission source having carbon nanotubes and method for making the same

#42

20090153012

2009-06-18

Thermionic electron source

#43

20080315745

2008-12-25

Electronic device containing carbon nanotubes

#44

20080164802

2008-07-10

Diamond Electron Emission Cathode, Electron Emission Source, Electron Microscope, And Electron Beam Exposure Device

#45

20080067493

2008-03-20

Diamond electron emission cathode, electron emission source, electron microscope, and electron beam exposure device

#46

20080048544

2008-02-28

Diamond electron emission cathode, electron emission source, electron microscope, and electron beam exposure device

#47

20070205707

2007-09-06

Electronic device containing a carbon nanotube

#48

20070090764

2007-04-26

Electrode materials for electric lamps and methods of manufacture thereof

#49

20060145586

2006-07-06

Indirectly heated cathode and cathode ray tube having same

#50

20060076866

2006-04-13

Electron source

#51

20060033415

2006-02-16

Electronic device containing a carbon nanotube

#52

18791792

2025-04-08

Multi-material thermionic electron emitters

#53

18404139

2024-09-03

Multi-material thermionic electron emitters

#54

16203524

2020-03-17

Low temperature, high-brightness, cathode

#55

14992870

2016-11-08

Thermal-field type electron source composed of transition metal carbide material

#56

14218680

2017-05-09

Carburized lutetium oxide doped molybdenum cathode and its fabrication method

#57

13851732

2016-01-19

Thermal-field type electron source composed of transition metal carbide material with artificial facet