Inventor
OKAMOTO TOYOO
17 patents
⚠️ This page may combine multiple inventors who share the name “OKAMOTO TOYOO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
16 patentsUS4166702ASep 4, 1979
Device for detecting a toner concentration in a developing solution
RICOH KK20 citations82
US4208122AJun 17, 1980
Reproduction apparatus comprising sorting device
RICOH KK22 citations79
US4247195AJan 27, 1981
Bias device for a copying machine
RICOH KK8 citations74
US4159172AJun 26, 1979
Transfer sheet separator for use with electrophotographic copying machine
RICOH KK13 citations74
US5512927AApr 30, 1996
Image forming apparatus having a photosensitive drum rotatable at different speeds
RICOH KK11 citations73
US4400081AAug 23, 1983
Apparatus for cleaning photosensitive member of electrostatic copying machine
RICOH KK11 citations73
US4203144AMay 13, 1980
Corona charger for image transfer
RICOH KK12 citations73
US4165172AAug 21, 1979
Drum cleaning system for electrophotographic apparatus
RICOH KK10 citations73
US4149485AApr 17, 1979
Apparatus for forming a uniform liquid film on a roller
RICOH KK7 citations73
US4056315ANov 1, 1977
Squeeze roller retraction assembly
RICOH KK17 citations73
US4011353AMar 8, 1977
Apparatus for forming a uniform liquid film on a roller
RICOH KK7 citations73
US4006709AFeb 8, 1977
Developing unit for electrophotography
RICOH KK9 citations73
US3941469AMar 2, 1976
Dry type developing device for a copying apparatus or like apparatus
RICOH KK15 citations73
US4324485AApr 13, 1982
Electrostatic copying apparatus
RICOH KK7 citations71
US4168329ASep 18, 1979
Auto-bias developing process and an electrophotographic copying machine
RICOH KK11 citations71
US4095884AJun 20, 1978
Exposure controlling apparatus for electrophotographic copying machine
RICOH KK5 citations63