Inventor
KUMAGAI HIROJI
4 patents
Patents
4 patentsUS4209551AJun 24, 1980
Method of fabricating a phosphor screen of a color television picture tube
TOPPAN PRINTING CO LTD39 citations90
US4175958ANov 27, 1979
Dry planographic printing method and plate made by electrophotographic method using conductive toner
TOPPAN PRINTING CO LTD11 citations70
US4592977AJun 3, 1986
Lithographic printing plate
TOPPAN PRINTING CO LTD13 citations69
US4268158AMay 19, 1981
Dry planographic printing apparatus
TOPPAN PRINTING CO LTD6 citations59