ClassID:

205787

H01J2201/30415 - CPC Classification

Classification description:

Electrodes common to discharge tubes; Cold cathodes; Field emission cathodes characterised by the emitter shape; Microengineered point emitters needle shaped

Recent Application in this class:
#1
20250372334
2025-12-04

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

#2
20250174422
2025-05-29

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

#3
20220308087
2022-09-29

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

#4
20210159038
2021-05-27

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

#5
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

#6
20150060758
2015-03-05

Field emission devices and methods of manufacturing emitters thereof

#7
20150060757
2015-03-05

FIELD EMISSION DEVICES AND METHODS OF MANUFACTURING GATE ELECTRODES THEREOF

#8
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

#9
20130234025
2013-09-12

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

#10
20130168781
2013-07-04

Two-wafer MEMS ionization device

#11
20130112138
2013-05-09

Particle sources and methods for manufacturing the same

#12
20120131785
2012-05-31

Electron beam source and method of manufacturing the same

#13
20110089396
2011-04-21

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

#14
20110036810
2011-02-17

MANUFACTURING METHOD OF ELECTRON SOURCE

#15
20100078557
2010-04-01

Electron beam source and method of manufacturing the same

#16
20100006447
2010-01-14

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

#17
20090236961
2009-09-24

Field emission electron source having a carbon nanotube needle

#18
20090078561
2009-03-26

Apparatus and Methods for Growing Nanofibres and Nanotips

#19
18491725
2024-03-19

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

#20
18157817
2023-12-19

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

#21
17846498
2023-05-16

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