国家/地区 中国（3） 欧洲专利局（EPO）（2） 日本（2） 美国（2） 世界知识产权组织（2）
IPC部 C（4）
IPC大类 H01（4） C01（3）
IPC小类 H01J（4）
IPC H01J009/02（4）
发明人
公开年 2020（2） 2021（2）
申请年 2020（4）
专利权人

Electron-emitting element e.g. cold cathode-type electron source, has coating membrane that is film which transmits electron, and second electrode that is protective film of different material, and comprises electron emission surface.

MURAKAMI K, NAGAO M, KATSUHISA M, MASAYOSHI N

Method for producing carbon nanotube (CNT) paste by carbon nanotube paste emitter in X-ray tube device, involves producing carbon nanotube paste, carbon nanotube powder, graphite nanoparticles, dispersing agent and distilled water are mixed.

LEE C J, GO H B, LEE S H, GO H, HUN L S

Preparation of nitrogen-doped reducing graphene oxide field emitting cathode used e.g. for field emission device, by mixing graphene oxide and organic adhesive, dispersing, using one end of graphite rod to dip, and drying graphite rod.

SONG Y, YU Y, LI B

Field emission cathode based on graphene/metamaterial composite nanostructures used in the field of high brightness and coherent electron sources comprises e.g. base material on patterned vertical carbon nanotube array and graphene material.

XU J, SHI Y, ZHANG X