Inventor
TATSUMI SUSUMU
JP24 patents
⚠️ This page may combine multiple inventors who share the name “TATSUMI SUSUMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
23 patentsUS4277163AJul 7, 1981
Variable magnification electrostatic copying machine
RICOH KK68 citations96
US4239374ADec 16, 1980
Electrostatographic apparatus comprising automatic document type determination means
RICOH KK57 citations96
US4226525AOct 7, 1980
Electrostatic copying machine
RICOH KK51 citations96
US4215930AAug 5, 1980
Method of maintaining the correct conditions of an electrophotographically duplicated image
RICOH KK52 citations96
US4415533ANov 15, 1983
Process for treating exhaust gas from electrophotographic machine and apparatus thereof
RICOH KK33 citations92
US4330749AMay 18, 1982
Electrometer apparatus
RICOH KK29 citations92
US4306804ADec 22, 1981
Exposure control and other component control for electrostatic copying machine
RICOH KK32 citations92
US4277549AJul 7, 1981
Copy image adjustment method
RICOH KK35 citations92
US4200391AApr 29, 1980
Electrostatographic apparatus comprising document density sensing means
RICOH KK49 citations92
US4279498AJul 21, 1981
Electrostatographic copying apparatus with automatic toner density control
RICOH KK28 citations82
US4195260AMar 25, 1980
Apparatus for sensing deterioration of developing substance including ferromagnetic carrier and non-magnetic toner particles
RICOH KK25 citations82
US4318042AMar 2, 1982
Electrometer probe
RICOH KK19 citations81
US4032229AJun 28, 1977
Construction of electrophotographic copying machines with a cleaning unit for photosensitive surface
RICOH KK24 citations81
US4614682ASep 30, 1986
Thermosensitive image transfer recording medium
RICOH KK14 citations74
US4210864AJul 1, 1980
Apparatus for sensing toner density using a stationary ferromagnetic mass within the toner to increase sensitivity
RICOH KK18 citations74
US4423134ADec 27, 1983
Developing unit for electrophotography
RICOH KK17 citations73
US4213693AJul 22, 1980
Electrostatographic apparatus comprising improved developing bias control
RICOH KK11 citations73
US4080059AMar 21, 1978
Apparatus for cleaning a photosensitive member of an electrophotographic copying machine
RICOH KK19 citations72
US4168329ASep 18, 1979
Auto-bias developing process and an electrophotographic copying machine
RICOH KK11 citations71
US4139299AFeb 13, 1979
Auto-bias developing apparatus
RICOH KK5 citations63
US3980049ASep 14, 1976
Developing unit for electrophotography
RICOH KK3 citations63
US4266870AMay 12, 1981
Electrostatographic apparatus comprising developing bias means
RICOH KK5 citations62
US4176942ADec 4, 1979
Electrophotographic copying apparatus
RICOH KK4 citations60