H01J2203/0272 - CPC Classification Index

ClassID:

205845 ⎘

H01J2203/0272 - 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; Insulation layer for gate electrodes

Recent Application in this class:

20160013005

2016-01-14

Field emission cathode and field emission device

20130230146

2013-09-05

Electron emission device and X-ray generator including the same

20100252804

2010-10-07

Cathode assembly containing an ultraviolet light-blocking dielectric layer

20100201247

2010-08-12

Electron emitting device and image displaying apparatus using the same

20100019647

2010-01-28

Field emission cathode device and field emission display using the same

20090146547

2009-06-11

Field electron emission source