Title:
電子放射陰極の使用方法
Document Type and Number:
Japanese Patent JP4368501
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method of using an electron emitting cathode holding a reservoir so as not to easily drop by enduring repeated temperature rises and drops, and having a long life and high reliability. SOLUTION: In this method of using an electron emitting cathode, an electron emitting cathode having a metallic base, a coated layer to lower the work function of the metallic base by coating the surface of the metallic base, and a supply source to supply a substance to compose the coated layer, is operated at a lower temperature than the transformation temperature of the substance composing the supply source.
Inventors:
Yoshinori Terui
Naoya Kudo
Katsuyoshi Tsunoda
Naoya Kudo
Katsuyoshi Tsunoda
Application Number:
JP2000174762A
Publication Date:
November 18, 2009
Filing Date:
June 12, 2000
Export Citation:
Assignee:
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
International Classes:
H01J37/073; H01J1/304; H01L21/027
Domestic Patent References:
| JP9270240A | ||||
| JP6084450A |