Inventor
NAGANUMA TSUTOMU
7 patents
⚠️ This page may combine multiple inventors who share the name “NAGANUMA TSUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOPPAN PRINTING CO LTD
3 patentsUS4175958ANov 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