ClassID:

204467

H01J1/3044 - 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; Cold cathodes, e.g. field-emissive cathode; Field-emissive cathodes microengineered, e.g. Spindt-type Point emitters

Recent Application in this class:
#1
20260081089
2026-03-19

BACKEND FIELD EMISSION DEVICES

#2
20250372334
2025-12-04

EMITTER, ELECTRON GUN AND ELECTRONIC APPARATUS, AND EMITTER MANUFACTURING METHOD

#3
20250357069
2025-11-20

JUNCTION BETWEEN HEXABORIDE-CONTAINING AND TANTALUM-CONTAINING COMPONENTS

#4
20250174422
2025-05-29

Field Emission Electron Source, Electron Optical Device, and Manufacturing Method

#5
20250054721
2025-02-13

IN-LINE ELECTRON BEAM INSPECTION METHOD FOR SEMICONDUCTOR PROCESSES AND COLD FIELD EMITTER WITH NANOMETER-SCALE PROTRUSION STRUCTURE FOR IN-LINE ELECTRON BEAM INSPECTION EQUIPMENT APPLIED TO SEMICONDUCTOR PROCESSES AND MANUFACTURE METHOD THEREOF

#6
20230005694
2023-01-05

PASSIVE AND ACTIVE DIAMOND-BASED ELECTRON EMITTERS AND IONIZERS

#7
20220336180
2022-10-20

Light modulated electron source

#8
20220308087
2022-09-29

Carbon nanomaterial functionalized needle tip modified with low work function material and preparation method thereof

#9
20220037104
2022-02-03

Passive and active diamond-based electron emitters and ionizers

#10
20210159038
2021-05-27

Cathode structure for cold field electron emission and method of fabricating the same

#11
20210098222
2021-04-01

Light modulated electron source

#12
20210050172
2021-02-18

Electron source operating method

#13
20200219693
2020-07-09

Field emission cathode electron source and array thereof

#14
20200111637
2020-04-09

Photocathode designs and methods of generating an electron beam using a photocathode

#15
20200027683
2020-01-23

Diamond semiconductor device

#16
20190362927
2019-11-28

Metal protective layer for electron emitters with a diffusion barrier

#17
20190333730
2019-10-31

Field emission device and field emission method

#18
20190287753
2019-09-19

Method for producing an electron emitter coated with a nanorod-containing coating

#19
20190259706
2019-08-22

Device comprising nanostructures and method of manufacturing thereof

#20
20190108967
2019-04-11

Electron beam generation and measurement

#21
20190108964
2019-04-11

Photocathode designs and methods of generating an electron beam using a photocathode

#22
20190108963
2019-04-11

Silicon electron emitter designs

#23
20190066966
2019-02-28

Field emission electron source, method for manufacturing same, and electron beam device

#24
20180114666
2018-04-26

Method for manufacturing nanostructures for a field emission cathode

#25
20180005791
2018-01-04

High brightness boron-containing electron beam emitters for use in a vacuum environment

#26
20170365507
2017-12-21

Field emission devices and methods of making thereof

#27
20170345640
2017-11-30

Field emission light source

#28
20170148603
2017-05-25

Iridium tip, gas field ion source, focused ion beam apparatus, electron source, electron microscope, electron beam applied analysis apparatus, ion-electron multi-beam apparatus, scanning probe microscope, and mask repair apparatus

#29
20170076901
2017-03-16

Techniques for optimizing nanotips derived from frozen taylor cones

#30
20170032921
2017-02-02

Integrated vacuum microelectronic structure and manufacturing method thereof

#31
20160343532
2016-11-24

Photocathode including field emitter array on a silicon substrate with boron layer

#32
20160329184
2016-11-10

Array of carbon nanotube micro-tip structures

#33
20160186333
2016-06-30

Method and device for producing nanotips

#34
20160181051
2016-06-23

Nanoparticle-templated lithographic patterning of nanoscale electronic components

#35
20160118214
2016-04-28

Cold field electron emitters based on silicon carbide structures

#36
20150255240
2015-09-10

Method for manufacturing electron source

#37
20150123010
2015-05-07

Bright and durable field emission source derived from refractory taylor cones

#38
20150061487
2015-03-05

Cold field electron emitters based on silicon carbide structures

#39
20150060758
2015-03-05

Field emission devices and methods of manufacturing emitters thereof

#40
20150060757
2015-03-05

FIELD EMISSION DEVICES AND METHODS OF MANUFACTURING GATE ELECTRODES THEREOF

#41
20150047079
2015-02-12

Iridium tip, gas field ion source, focused ion beam apparatus, electron source, electron microscope, electron beam applied analysis apparatus, ion-electron multi-beam apparatus, scanning probe microscope, and mask repair apparatus

#42
20140353576
2014-12-04

Integrated vacuum microelectronic device and fabrication method thereof

#43
20140346976
2014-11-27

Method for manufacturing nanostructures and cathode for field emission lighting arrangement

#44
20140292180
2014-10-02

Electron emission element and method for manufacturing the same

#45
20140246397
2014-09-04

Method for fabricating emitter

#46
20140217473
2014-08-07

Device comprising nanostructures and method of manufacturing thereof

#47
20140028192
2014-01-30

Field emission devices and methods of making thereof

#48
20130280830
2013-10-24

Method for manufacturing a carbon nanotube field emission device with overhanging gate

#49
20130241389
2013-09-19

VACUUM FIELD EMISSION DEVICES AND METHODS OF MAKING SAME

#50
20130234025
2013-09-12

Electron gun emitting under high voltage, in particular for electron microscopy

#51
20130224429
2013-08-29

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

#52
20130200776
2013-08-08

Field emission cathode

#53
20130187532
2013-07-25

Cold field electron emitters based on silicon carbide structures

#54
20130170592
2013-07-04

Device and method for ion generation

#55
20130168781
2013-07-04

Two-wafer MEMS ionization device

#56
20130134860
2013-05-30

Conductive nanostructure, method for molding same, and method for manufacturing a field emitter using same

#57
20130122774
2013-05-16

Fabrication of super ion—electron source and nanoprobe by local electron bombardment

#58
20130119252
2013-05-16

Gas field ion source and method for using same, ion beam device, and emitter tip and method for manufacturing same

#59
20130112138
2013-05-09

Particle sources and methods for manufacturing the same

#60
20130020496
2013-01-24

PARTICLE SOURCES AND APPARATUSES USING THE SAME

#61
20120248959
2012-10-04

Electron beam source and method of manufacturing the same

#62
20120220182
2012-08-30

Method for making electron emission apparatus

#63
20120171920
2012-07-05

Method for forming tip for carbon nanotube and method for forming field emission structure having the same

#64
20120169210
2012-07-05

ELECTRON-SOURCE ROD, ELECTRON SOURCE AND ELECTRONIC DEVICE

#65
20120131785
2012-05-31

Electron beam source and method of manufacturing the same

#66
20120007490
2012-01-12

Ion source having secondary electron enhancing electrode

#67
20110305314
2011-12-15

ELECTRON EMITTING DEVICE, IMAGE DISPLAY APPARATUS USING THE SAME, RADIATION GENERATION APPARATUS, AND RADIATION IMAGING SYSTEM

#68
20110181171
2011-07-28

Electron emission apparatus and method for making the same

#69
20110140602
2011-06-16

Field emission cathode capable of amplifying electron beam and methods of controlling electron beam density

#70
20110104832
2011-05-05

Method for producing a field-emitter array with controlled apex sharpness

#71
20110101238
2011-05-05

Cold field emitter

#72
20110089396
2011-04-21

Field emission array having carbon microstructure and method of manufacturing the same

#73
20110057555
2011-03-10

Matrix-type cold-cathode electron source device

#74
20110057164
2011-03-10

CARBON NANOTUBE FIELD EMISSION DEVICE WITH OVERHANGING GATE

#75
20110036810
2011-02-17

MANUFACTURING METHOD OF ELECTRON SOURCE

#76
20100136869
2010-06-03

Method of fabricating electron-emitting device and method of manufacturing image display apparatus

#77
20100134313
2010-06-03

Electron-emitting device and display panel including the same

#78
20100084961
2010-04-08

Electron beam apparatus having a recess formed in a surface of an insulating member

#79
20100084957
2010-04-08

Field emission electron source having carbon nanotube and manufacturing method thereof

#80
20100078557
2010-04-01

Electron beam source and method of manufacturing the same

#81
20100052511
2010-03-04

FIELD EMISSION DEVICE

#82
20100048391
2010-02-25

Catalyst particles on a tip

#83
20100045212
2010-02-25

Devices having laterally arranged nanotubes

#84
20100045158
2010-02-25

Field emission cathode capable of amplifying electron beam and methods of controlling electron beam density

#85
20100006447
2010-01-14

METHOD OF PREPARING AN ULTRA SHARP TIP, APPARATUS FOR PREPARING AN ULTRA SHARP TIP, AND USE OF AN APPARATUS

#86
20090280585
2009-11-12

High-density field emission elements and a method for forming said emission elements

#87
20090195140
2009-08-06

Electron emission apparatus and method for making the same

#88
20090195139
2009-08-06

Electron emission apparatus and method for making the same

#89
20090160307
2009-06-25

DIAMOND ELECTRON SOURCE AND METHOD FOR MANUFACTURING THE SAME

#90
20090142936
2009-06-04

Method of forming gated, self-aligned micro-structures and nano structures

#91
20090110951
2009-04-30

Atomically sharp iridium tip

#92
20090078561
2009-03-26

Apparatus and Methods for Growing Nanofibres and Nanotips

#93
20090026944
2009-01-29

FIELD EMISSION CATHODE STRUCTURE AND METHOD OF MAKING THE SAME

#94
20080272299
2008-11-06

Probe system comprising an electric-field-aligned probe tip and method for fabricating the same

#95
20080174225
2008-07-24

Cold field emitter

#96
20080169429
2008-07-17

Microelectronic multiple electron beam emitting device

#97
20080160312
2008-07-03

Methods and structures for promoting stable synthesis of carbon nanotubes

#98
20080129177
2008-06-05

System and method for limiting arc effects in field emitter arrays

#99
20080122370
2008-05-29

Field electron emission element, a method of manufacturing the same and a field electron emission method using such an element as well as an emission/display device employing such a field electron emission element and a method of manufacturing the same

#100
20080116446
2008-05-22

Electron emission element and electron emission element fabrication method

#101
20080074031
2008-03-27

Field emission display and method for manufacturing same

#102
20080042144
2008-02-21

Electron emitting device with projection comprising base portion and electron emission portion

#103
20080029700
2008-02-07

Field emission electron gun and electron beam applied device using the same

#104
20070236126
2007-10-11

Field emission electron source having carbon nanotube

#105
20070200478
2007-08-30

Field Emission Device

#106
20070196564
2007-08-23

Electron emitting member and manufacturing method thereof, cold cathode field emission device and manufacturing method thereof

#107
20070184747
2007-08-09

Field-emission electron source, method of manufacturing the same, and image display apparatus

#108
20070151508
2007-07-05

Zinc oxide nanotip and fabricating method thereof

#109
20070052339
2007-03-08

Electron emitters with dopant gradient

#110
20070029918
2007-02-08

Nitrogen and phosphorus doped amorphous silicon as resistor for field emission display device baseplate

#111
20070025907
2007-02-01

Nano-tip fabrication by spatially controlled etching

#112
20070024178
2007-02-01

Field emission device having insulated column lines and method of manufacture

#113
20070001574
2007-01-04

CONTINUOUSLY CLEANING OF THE EMISSION SURFACE OF A COLD FIELD EMISSION GUN USING UV OR LASER BEAMS

#114
20060289380
2006-12-28

Method of forming composite, ordered material having sharp surface features

#115
20060267475
2006-11-30

Field emission device and a method of forming such a device

#116
20060267472
2006-11-30

Field emission tips, arrays, and devices

#117
20060238457
2006-10-26

FIELD EMITTER DEVICES WITH EMITTERS HAVING IMPLANTED LAYER

#118
20060237812
2006-10-26

Electronic emitters with dopant gradient

#119
20060226765
2006-10-12

Electronic emitters with dopant gradient

#120
20060220514
2006-10-05

Process for producing diamond electron emission element and electron emission element

#121
20060181188
2006-08-17

High-density field emission elements and a method for forming said emission elements

#122
20060152134
2006-07-13

Field emission display having reduced power requirements and method

#123
20060141657
2006-06-29

Field emission device and manufacturing method thereof

#124
20060076866
2006-04-13

Electron source

#125
20060066200
2006-03-30

Electron emission source composition for flat panel display and method of producing electron emission source for flat panel display using the same

#126
20060024478
2006-02-02

Composite, ordered material having sharp surface features

#127
20060001360
2006-01-05

Cold-cathode electron source, microwave tube using it, and production method thereof

#128
20050266765
2005-12-01

Method of forming nitrogen and phosphorus doped amorphous silicon as resistor for field emission display device baseplate

#129
20050244325
2005-11-03

Carbon nanotube, electron emission source including the same, electron emission device including the electron emission source,and method of manufacturing the electron emission device

#130
20050218786
2005-10-06

Micro-field emitter device for flat panel display

#131
20050212819
2005-09-29

Image display method, image display apparatus and image display program

#132
20050212395
2005-09-29

Electron beam generator device having carbon nanotube structure with a crosslinked network structure

#133
20050212394
2005-09-29

Carbon nanotube substrate structure

#134
20050179366
2005-08-18

Field emission device

#135
20050153617
2005-07-14

Method of making micro-field emitter device for flat panel display

#136
20050150255
2005-07-14

Lensed tip optical fiber and method of making the same

#137
20050133735
2005-06-23

Electron emitting device with projection comprising base portion and electron emission portion

#138
20050129948
2005-06-16

Methods and structures for promoting stable synthesis of carbon nanotubes

#139
20050104499
2005-05-19

Organic field emission device

#140
20050099111
2005-05-12

Method for the preparation of graphite nanofibers and emitter and display elements comprising the nanofibers

#141
20050067935
2005-03-31

Self-aligned gated rod field emission device and associated method of fabrication

#142
20050062389
2005-03-24

Diamond triode devices with a diamond microtip emitter

#143
20050059311
2005-03-17

Flexible display panel method

#144
20050053721
2005-03-10

Fibrous solid carbon manifold assembly and method for producing the same

#145
20050026532
2005-02-03

Structures and methods to enhance field emission in field emitter devices

#146
20050023951
2005-02-03

Electron emitters with dopant gradient

#147
20050001536
2005-01-06

Field emission source with plural emitters in an opening

#148
20050000938
2005-01-06

Method of making diamond product and diamond product

#149
18665386
2025-08-12

Electrode and filament coupled by adapter

#150
18491725
2024-03-19

Field-emission type electron source and charged particle beam device using the same

#151
18157817
2023-12-19

Field-emission type electron source and charged particle beam device using the same

#152
17846498
2023-05-16

Method of producing microrods for electron emitters, and associated microrods and electron emitters

#153
15359436
2018-09-25

Thermionic-enhanced field emission electron source composed of transition metal carbide material with sharp emitter end-form

#154
14340012
2015-12-01

Fully integrated and encapsulated micro-fabricated vacuum diode and method of manufacturing same