Inventor
YOO HIDEO
JP4 patents
Patents
4 patentsUS4989043AJan 29, 1991
Color-balance control method
RICOH KK25 citations92
US4875079AOct 17, 1989
Toner density control for multicolor electrophotographic copier
RICOH KK8 citations72
US4737821AApr 12, 1988
Colored image recording device
RICOH KK8 citations71
US4502780AMar 5, 1985
Photoconductor cleaning apparatus
RICOH KK14 citations71