Color cathode ray tube
 A color cathode ray tube includes an electron gun, a fluorescent screen which emits light when contacted by electron beams emitted from the electron gun, and a shadow mask arranged between the electron gun and the fluorescent screen and having a plurality of through holes for the electron beams. The color cathode ray tube further includes an electron beam reflecting film formed on an electron beam irradiated surface of the shadow mask using tungsten powder, to which at least a metal, that is not more likely to be oxidized than tungsten, is added or coated. 
Mitsubishi Denki Kabushiki Kaisha
H H H
H01J H01J H01J
inventional inventional additional
Tohru Hiroshi Tetsuya Morio Masayasu
Hanada Kimura Watanabe Yamamoto Koitabashi