Inventor

WATANUKI MASAYOSI

JP3 patents

Patents

3 patents

US4872037AOct 3, 1989

Image forming apparatus and control system therefor

RICOH KK25 citations89

US4200388AApr 29, 1980

Toner density sensor for electrostatic copying machine

RICOH KK3 citations60

US4089602AMay 16, 1978

Automatic shutdown system for electrophotographic apparatus

RICOH KK5 citations57