Inventor
SEKO NACHIO
JP7 patents
Patents
7 patentsUS4583834AApr 22, 1986
Copying apparatus
RICOH KK192 citations98
US4167322ASep 11, 1979
Electrostatic copying system having monitoring devices
RICOH KK94 citations96
US4640608AFeb 3, 1987
Cleaning method for use in electrophotography
RICOH KK56 citations94
US4256401AMar 17, 1981
Image density adjustment method and apparatus
RICOH KK32 citations91
US4203663AMay 20, 1980
Computer controlled electrostatic copying machine
RICOH KK23 citations80
US3977778AAug 31, 1976
Electrophotographic apparatus
RICOH KK11 citations73
US3992089ANov 16, 1976
Reader-printer apparatus with multiple supply rolls and charging devices
RICOH KK15 citations72