Oblon, Fisher, Spivak, McClelland & Maier
Molding method
 A mold capable of imparting uniform transparency to the calcium phosphate type crystallized glass, in which crystals of calcium metaphosphate are present at the shaping surface of the mold which comes into contact with the material to be shaped. 
Lion Corporation Asahi Glass Company Ltd.
C C C
C03B C03B C03C
inventional inventional inventional
Shigeyoshi Tsuneo Shoji Masazumi Tohoru Yasuko
Kobayashi Manabe Watanabe Shigematsu Sema Osaki