Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Patent
1995-09-22
1998-12-08
Patel, Nimeshkumar
Electric lamp and discharge devices
Discharge devices having a thermionic or emissive cathode
313355, 313308, 313496, H01J 130, H01J 1924
Patent
active
058474951
ABSTRACT:
An electron-emitting device comprises an electroconductive film including an electron-emitting region disposed between a pair of electrodes arranged on a substrate. The electron-emitting region is formed close to the step portion formed by one of the electrodes and the substrate.
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Hamamoto Yasuhiro
Tsukamoto Takeo
Yamamoto Keisuke
Yamanobe Masato
Canon Kabushiki Kaisha
Day Michael
Patel Nimeshkumar
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