Title:
ELECTRIC FIELD RADIATING CATHODE
Document Type and Number:
Japanese Patent JPS5286768
Kind Code:
A
Abstract:
PURPOSE: To extend the lite of cathode and to estabilize highly cathode by using ascathodematerial the carbon which is obtained by heating phenol resin tiber made from phenol and hexa-methylene-tetramyn in the fixed manner.
Inventors:
FUTATSUMOTO MASAAKI
KAWABE USHIO
HOSOKI SHIGEYUKI
KAWABE USHIO
HOSOKI SHIGEYUKI
Application Number:
JP280676A
Publication Date:
July 19, 1977
Filing Date:
January 14, 1976
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H01J1/304; H01J1/14; H01J1/30; H01J9/02; (IPC1-7): H01J1/14; H01J1/30