ClassID:

204463

H01J1/28 - 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; Solid thermionic cathodes; Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment Dispenser-type cathodes, e.g. L-cathode

Recent Application in this class:
#1
20230028580
2023-01-26

Electron source

#2
20200294751
2020-09-17

Electron source

#3
20200043691
2020-02-06

Thermionic tungsten/scandate cathodes and method of making the same

#4
20180269024
2018-09-20

Low work function electron beam filament assembly

#5
20180158639
2018-06-07

TARGET FOR BARIUM-SCANDATE DISPENSER CATHODE

#6
20170345608
2017-11-30

Method for preparing pressed scandia-doped dispenser cathodes using microwave sintering

#7
20160314935
2016-10-27

Focusing electrode for cathode arrangement, electron gun, and lithography system comprising such electron gun

#8
20150380198
2015-12-31

Magnetron

#9
20150187541
2015-07-02

Cathode arrangement, electron gun, and lithography system comprising such electron gun

#10
20150187533
2015-07-02

Cathode arrangement, electron gun, and lithography system comprising such electron gun

#11
20110180721
2011-07-28

System, method and apparatus for multi-beam lithography including a dispenser cathode for homogeneous electron emission

#12
20100219357
2010-09-02

System, method and apparatus for multi-beam lithography including a dispenser cathode for homogeneous electron emission

#13
20100060136
2010-03-11

CATHODE FOR ELECTRON EMISSION

#14
20090273269
2009-11-05

SCANDATE DISPENSER CATHODE

#15
20090153010
2009-06-18

Bi-directional dispenser cathode

#16
20070182303
2007-08-09

System, method and apparatus for multi-beam lithography including a dispenser cathode for homogeneous electron emission

#17
20060028114
2006-02-09

System, method and apparatus for multi-beam lithography including a dispenser cathode for homogeneous electron emission

#18
20050140262
2005-06-30

Cathode for cathode ray tube with improved lifetime

#19
14218680
2017-05-09

Carburized lutetium oxide doped molybdenum cathode and its fabrication method

#20
13105249
2014-07-01

Carbon nanotube fiber cathode