ClassID:

206236

H01J2235/06 - CPC Classification

Classification description:

X-ray tubes Cathode assembly

Sub-classes:
Recent Application in this class:
#1
20260011522
2026-01-08

GRIDDED CATHODE APPARATUSES AND X-RAY SYSTEMS

#2
20250273421
2025-08-28

VACUUM TUBE INSERT ASSEMBLY WITH FEED-THROUGH PIN PLUG AND MATING SOCKET

#3
20250079108
2025-03-06

MOUNTED PLANAR FILAMENT

#4
20240234074
2024-07-11

EMITTER, FIELD EMISSION ASSEMBLY AND ELECTROMAGNETIC WAVE GENERATOR INCLUDING THE SAME

#5
20240136142
2024-04-25

EMITTER, FIELD EMISSION ASSEMBLY AND ELECTROMAGNETIC WAVE GENERATOR INCLUDING THE SAME

#6
20230005696
2023-01-05

Vacuum tube insert assembly with feed-through pin plug and mating socket

#7
20220384136
2022-12-01

CATHODE EMISSION DEVICE AND X-RAY TUBE USING SAME

#8
20200388459
2020-12-10

SILICON FIELD EFFECT EMITTER

#9
20200303150
2020-09-24

Flat emitter

#10
20190180970
2019-06-13

X-ray tube

#11
20190045613
2019-02-07

Circular x-ray tube and an x-ray instrument comprising the circular x-ray tube

#12
20180277331
2018-09-27

Receptacle for receiving a plug connector of a high-voltage cable for a microfocus X-ray tube, plug connection for a high-voltage cable

#13
20180190466
2018-07-05

Electron emission source and X-ray generator using the same

#14
20180075997
2018-03-15

X-ray tube and a controller thereof

#15
20180053622
2018-02-22

Thermionic emission device, focus head, X-ray tube and X-ray emitter

#16
20170345611
2017-11-30

Metal jet x-ray tube

#17
20170250050
2017-08-31

Robust emitter for minimizing damage from ion bombardment

#18
20170076903
2017-03-16

X-RAY TUBE

#19
20160358739
2016-12-08

Deep channel cathode assembly

#20
20160284503
2016-09-29

X-RAY TUBE

#21
20160217965
2016-07-28

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

#22
20160189911
2016-06-30

High dose output, through transmission target X-ray system and methods of use

#23
20160189908
2016-06-30

Low aberration, high intensity electron beam for X-ray tubes

#24
20160163497
2016-06-09

X-ray assemblies and coatings

#25
20160093462
2016-03-31

Filament for X-ray cathode

#26
20160086760
2016-03-24

Friction welding of X-ray tube components using intermediate filler materials

#27
20160035532
2016-02-04

X-ray tube cathode with shaped emitter

#28
20160020061
2016-01-21

Transmission-type target for X-ray generating source, and X-ray generator and radiography system including transmission-type target

#29
20160000949
2016-01-07

APPARATUS FOR THE GENERATION OF LOW-ENERGY X-RAYS

#30
20150303023
2015-10-22

X-ray tube with rotating anode aperture

#31
20150198860
2015-07-16

Optical system and optical filtering method

#32
20150124931
2015-05-07

Cathode filament assembly

#33
20150117617
2015-04-30

X-ray tube

#34
20140270087
2014-09-18

X-ray generator including heat sink block

#35
20140254767
2014-09-11

Cathode assembly for a long throw length X-ray tube

#36
20140203707
2014-07-24

Electron emission device

#37
20130336462
2013-12-19

Cooling structure for open x-ray source, and open x-ray source

#38
20130277567
2013-10-24

Ionization device

#39
20130182825
2013-07-18

X-ray tube cathode with magnetic electron beam steering

#40
20130121473
2013-05-16

Radiation generating tube and radiation generating apparatus using the same

#41
20130034207
2013-02-07

Radiation generating apparatus and radiation imaging apparatus

#42
20130016810
2013-01-17

Radiation generating apparatus and radiation imaging apparatus

#43
20120217231
2012-08-30

Electron emitter and method of making same

#44
20120163550
2012-06-28

X-ray generator

#45
20120163548
2012-06-28

X-ray generator

#46
20120140896
2012-06-07

Cathode structures for X-ray tubes

#47
20120063558
2012-03-15

Floating intermediate electrode configuration for downhole nuclear radiation generator

#48
20110280377
2011-11-17

THERMIONIC SURFACE EMITTER AND ASSOCIATED METHOD TO OPERATE AN X-RAY TUBE

#49
20110250380
2011-10-13

SUBSTRATE WITH CARBON NANOTUBES, AND METHOD TO TRANSFER CARBON NANOTUBES

#50
20110235785
2011-09-29

Auxiliary grid electrode for X-ray tubes

#51
20110222664
2011-09-15

X-ray anode

#52
20110150184
2011-06-23

Multiple wavelength X-ray source

#53
20110116593
2011-05-19

System and method for beam focusing and control in an indirectly heated cathode

#54
20110114830
2011-05-19

Electrode configuration for downhole nuclear radiation generator

#55
20110058643
2011-03-10

System and method for generating X-rays

#56
20110051898
2011-03-03

Electron emitter and method of making same

#57
20110051884
2011-03-03

X-ray tube and X-ray CT apparatus

#58
20110002443
2011-01-06

High voltage x-ray generator and related oil well formation analysis apparatus and method

#59
20100303203
2010-12-02

Radiation source, imaging system, and operating method to determine and produce a radiation focal spot having an asymmetrical power input profile

#60
20100278308
2010-11-04

X-ray tube

#61
20100278307
2010-11-04

Thermionic emitter designed to provide uniform loading and thermal compensation

#62
20100195798
2010-08-05

Cathode structures for X-ray tubes

#63
20100181942
2010-07-22

Thermionic emission device

#64
20100142681
2010-06-10

ARRANGEMENT FOR GENERATION OF X-RAY RADIATION WITH A LARGE REAL FOCUS AND A VIRTUAL FOCUS ADJUSTED ACCORDING TO REQUIREMENTS

#65
20100074410
2010-03-25

TRANSMISSION TYPE X-RAY TUBE AND MANUFACTURING METHOD THEREOF

#66
20100067664
2010-03-18

X-ray generating apparatus

#67
20100067663
2010-03-18

Cathode

#68
20100040201
2010-02-18

Cathode with a Coating Near the Filament and Methods for Making Same

#69
20100002842
2010-01-07

CATHODE ASSEMBLY FOR RAPID ELECTRON SOURCE REPLACEMENT IN A ROTATING ANODE X-RAY GENERATOR

#70
20090323898
2009-12-31

Thermionic emitter designed to control electron beam current profile in two dimensions

#71
20090284121
2009-11-19

CATHODE WITH A SURFACE EMITTER COMPOSED OF ELECTRICALLY CONDUCTIVE CERAMIC

#72
20090274276
2009-11-05

High voltage X-ray generator and related oil well formation analysis

#73
20090225949
2009-09-10

High voltage x-ray generator and related oil well formation analysis apparatus and method

#74
20090220051
2009-09-03

Cathode

#75
20090161831
2009-06-25

Transmission type X-ray tube and manufacturing method thereof

#76
20080273661
2008-11-06

Irradiation method and apparatus

#77
20080257939
2008-10-23

X-RAY TUBE WITH GAP CONTROLLED BRAZE

#78
20080238296
2008-10-02

ELECTRON-EMITTING DEVICE AND DISPLAY APPARATUS

#79
20080187093
2008-08-07

X-RAY GENERATION USING SECONDARY EMISSION ELECTRON SOURCE

#80
20080159480
2008-07-03

High voltage x-ray generator and related oil well formation analysis apparatus and method

#81
20080049888
2008-02-28

High brightness—multiple beamlets source for patterned X-ray production

#82
20070246789
2007-10-25

THERMIONIC FLAT ELECTRON EMITTER

#83
20070211862
2007-09-13

Transmission type X-ray tube and manufacturing method thereof

#84
20070183577
2007-08-09

Cathode structures for X-ray tubes

#85
20070183576
2007-08-09

Cathode head having filament protection features

#86
20060274889
2006-12-07

Method and apparatus for controlling electron beam current

#87
20050175151
2005-08-11

Emitter array configurations for a stationary CT system

#88
20050117704
2005-06-02

X-ray tube system and apparatus with conductive proximity between cathode and electromagnetic shield