ClassID:

204611

H01J9/042 - CPC Classification

Classification description:

Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps; Manufacture of electrodes or electrode systems of thermionic cathodes Manufacture, activation of the emissive part

Sub-classes:
Recent Application in this class:
#1
20240212964
2024-06-27

Monolithic heater for thermionic electron cathode

#2
20240055213
2024-02-15

Monolithic heater for thermionic electron cathode

#3
20230235442
2023-07-27

High-temperature component

#4
20230215679
2023-07-06

Electron source, method for manufacturing same, emitter, and device including same

#5
20230085306
2023-03-16

Method and system for preparing cathode material

#6
20220336179
2022-10-20

CATHODE MEMBER FOR ELECTRON BEAM GENERATION, AND METHOD FOR MANUFACTURING THE SAME

#7
20220328274
2022-10-13

Method and apparatus for reducing the work function of polycrystalline metal hexaboride

#8
20220189725
2022-06-16

Electron emitter and method of fabricating same

#9
20210217572
2021-07-15

Thermionic emission device and method for making the same

#10
20210142975
2021-05-13

Electron emitter and method of fabricating same

#11
20210035765
2021-02-04

Emitter structures for enhanced thermionic emission

#12
20200066474
2020-02-27

CATHODES WITH CONFORMAL CATHODE SURFACES, VACUUM ELECTRONIC DEVICES WITH CATHODES WITH CONFORMAL CATHODE SURFACES, AND METHODS OF MANUFACTURING THE SAME

#13
20200043691
2020-02-06

Thermionic tungsten/scandate cathodes and method of making the same

#14
20190393012
2019-12-26

Planar gate-insulated vacuum channel transistor

#15
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

#16
20190172674
2019-06-06

Electron emitter and method of fabricating same

#17
20180269024
2018-09-20

Low work function electron beam filament assembly

#18
20180254164
2018-09-06

Carburized LaOand LuOco-doped Mo filament cathode

#19
20180197712
2018-07-12

X-ray tube and method of manufacturing the same

#20
20170169981
2017-06-15

Thermionic emission filament, quadrupole mass spectrometer and residual gas analyzing method

#21
20170092456
2017-03-30

Flexible flat emitter for X-ray tubes

#22
20160329184
2016-11-10

Array of carbon nanotube micro-tip structures

#23
20160300684
2016-10-13

Thermionic tungsten/scandate cathodes and methods of making the same

#24
20160217965
2016-07-28

X-ray tube having a dual grid and dual filament cathode

#25
20160093462
2016-03-31

Filament for X-ray cathode

#26
20150255240
2015-09-10

Method for manufacturing electron source

#27
20150124931
2015-05-07

Cathode filament assembly

#28
20140200579
2014-07-17

Directional mesh and associated systems

#29
20130224429
2013-08-29

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

#30
20130221842
2013-08-29

Method for producing an electrode for a high-pressure discharge lamp and high-pressure discharge lamp comprising at least one electrode thus produced

#31
20130169150
2013-07-04

INCREASED WEIGHT OF EMISSION MATERIALS ON FLUORESCENT LAMP ELECTRODES

#32
20120319558
2012-12-20

ELECTRODE FOR DISCHARGE LAMP AND METHOD FOR MANUFACTURING SAME

#33
20120308716
2012-12-06

Manufacturing method of CNT emitter with density controlled carbon nanotube

#34
20120153807
2012-06-21

ELECTRODE FOR DISCHARGE LAMP AND MANUFACTURING METHOD THEREOF

#35
20120153805
2012-06-21

ELECTRODE FOR DISCHARGE LAMP AND MANUFACTURING METHOD THEREOF

#36
20110039472
2011-02-17

METHOD OF MANUFACTURING A LAMP

#37
20110036810
2011-02-17

MANUFACTURING METHOD OF ELECTRON SOURCE

#38
20100207508
2010-08-19

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

#39
20100187096
2010-07-29

MANUFACTURING METHOD OF AN ELECTRON-EMITTING DEVICE, AND MANUFACTURING METHOD OF A LANTHANUM BORIDE FILM

#40
20100128203
2010-05-27

Lamp structure and liquid crystal display apparatus having the same

#41
20090026956
2009-01-29

COILED COIL ELECTRODE DESIGN FOR HIGH PRESSURE SODIUM LAMPS

#42
20080315769
2008-12-25

High intensity discharge lamp with enhanced dimming characteristcs

#43
20080185951
2008-08-07

Highly emissive cavity for discharge lamp and method and material relating thereto

#44
20080160872
2008-07-03

Discharge electrode, a discharge lamp and a method for manufacturing the discharge electrode

#45
20070108911
2007-05-17

Short arc type high voltage electrical discharge electrode, short arc type high voltage electrical discharge tube, short arc type high voltage electrical discharge light source apparatus, and their manufacturing methods

#46
20070090764
2007-04-26

Electrode materials for electric lamps and methods of manufacture thereof

#47
20060192490
2006-08-31

Production method of discharge lamp

#48
20060145585
2006-07-06

Electron gun

#49
20050247876
2005-11-10

Sample dimension measuring method and scanning electron microscope

#50
20050231093
2005-10-20

Method of reducing fluctuation in cut-off voltage, cathode for electron tube, and method for manufacturing cathode for electronic tube

#51
20050174030
2005-08-11

High brightness thermionic cathode

#52
20050062392
2005-03-24

Discharge electrode implemented by a wide bandgap semiconductor and a discharge lamp using the same

#53
20050046326
2005-03-03

Cathode with improved work function and method for making the same

#54
20050037134
2005-02-17

Process of manufacturing micronized oxide cathode

#55
15794023
2018-11-06

Ion pump noble gas stability using small grain sized cathode material

#56
15644704
2020-06-09

Thermionic cathode with a graphene sealing layer and method of making the same

#57
15400427
2017-10-17

Method of reducing work function in carbon coated LaB6 cathodes

#58
14218680
2017-05-09

Carburized lutetium oxide doped molybdenum cathode and its fabrication method