Patents-Review.com
ClassID:

205824 ⎘

H01J2201/3426 - CPC Classification

Classification description:

Electrodes common to discharge tubes; Photoemissive electrodes; Cathodes; Composition of the emitting surface Alkaline metal compounds, e.g. Na-K-Sb

Recent Application in this class:
#1
20200111637
2020-04-09

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

 #2
20200090895
2020-03-19

Metal encapsulated photocathode electron emitter

 #3
20190108967
2019-04-11

Electron beam generation and measurement

 #4
20190108964
2019-04-11

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

 #5
20190108963
2019-04-11

Silicon electron emitter designs

 #6
20180025881
2018-01-25

Photoelectric surface, photoelectric conversion tube, image intensifier, and photomultiplier tube

 #7
20110140074
2011-06-16

ROOM TEMPERATURE DISPENSER PHOTOCATHODE

 #8
20060152154
2006-07-13

Alkali metal generating agent, alkali metal generator, photoelectric surface, secondary electron emission surface, electron tube, method for manufacturing photoelectric surface, method for manufacturing secondary electron emission surface, and method for manufacturing electron tube

 #9
20060055322
2006-03-16

Alkali metal generating agent, alkali metal generator, photoelectric surface, secondary electron emission surface, electron tube, method for manufacturing photoelectric surface, method for manufacturing secondary electron emission surface, and method for manufacturing electron tube

 #10
20060049755
2006-03-09

Alkali metal generating agent, alkali metal generator, photoelectric surface, secondary electron emission surface, electron tube, method for manufacturing photoelectric surface, method for manufacturing secondary electron emission surface, and method for manufacturing electron tube