H01J2203/0216 - CPC Classification Index

ClassID:

205831 ⎘

H01J2203/0216 - CPC Classification

Classification description:

Electron or ion optical arrangements common to discharge tubes or lamps; Electron guns using cold cathodes, e.g. field emission cathodes; Control electrodes; Gate electrodes characterised by the form or structure

Sub-classes:

H01J2203/022 » Shapes or dimensions of gate openings 3
H01J2203/0224 » Arrangement of gate openings 3
H01J2203/0228 » Curved/extending upwardly 3

Recent Application in this class:

20160148774

2016-05-26

Field-emission device with improved beams-convergence

20150076988

2015-03-19

Electron emitter device with integrated multi-pole electrode structure

20140270087

2014-09-18

X-ray generator including heat sink block

20130230146

2013-09-05

Electron emission device and X-ray generator including the same

20100201247

2010-08-12

Electron emitting device and image displaying apparatus using the same

20090015133

2009-01-15

FIELD EMISSION DEVICE AND ELECTRODE STRUCTURE THEREOF