ClassID:

205796

H01J2201/30449 - CPC Classification

Classification description:

Electrodes common to discharge tubes; Cold cathodes; Field emission cathodes characterised by the emitter material Metals and metal alloys

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

BACKEND FIELD EMISSION DEVICES

#2
20260018362
2026-01-15

FIELD EMITTER AND METHOD FOR MANUFACTURING SAME

#3
20250174422
2025-05-29

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

#4
20220189725
2022-06-16

Electron emitter and method of fabricating same

#5
20210159038
2021-05-27

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

#6
20210142975
2021-05-13

Electron emitter and method of fabricating same

#7
20200111637
2020-04-09

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

#8
20190362927
2019-11-28

Metal protective layer for electron emitters with a diffusion barrier

#9
20190333729
2019-10-31

Tungsten alloy part, and discharge lamp, transmitting tube, and magnetron using the same

#10
20190198279
2019-06-27

Surface-tunneling micro electron source and array and realization method thereof

#11
20190172674
2019-06-06

Electron emitter and method of fabricating same

#12
20190108967
2019-04-11

Electron beam generation and measurement

#13
20190108966
2019-04-11

Ruthenium encapsulated photocathode electron emitter

#14
20190108964
2019-04-11

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

#15
20190108963
2019-04-11

Silicon electron emitter designs

#16
20180005791
2018-01-04

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

#17
20160108521
2016-04-21

Method for preparing a molybdenum disulfide film used in a field emission device

#18
20150146848
2015-05-28

Method for coded-source phase contrast X-ray imaging

#19
20150125340
2015-05-07

Tungsten alloy part, and discharge lamp, transmitting tube, and magnetron using the same

#20
20150124934
2015-05-07

Distributed, field emission-based X-ray source for phase contrast imaging

#21
20150035428
2015-02-05

Nanostructure field emission cathode structure and method for making

#22
20130134860
2013-05-30

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

#23
20100171407
2010-07-08

Field electron emitter, field electron emission device including the same, and method of manufacturing the field electron emitter

#24
20090289555
2009-11-26

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

#25
20090110951
2009-04-30

Atomically sharp iridium tip

#26
20080102015
2008-05-01

Nitrogen-mediated manufacturing method of transition metal-carbon nanotube hybrid materials

#27
17846498
2023-05-16

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