Inventor
IMAI CHIKARA
JP23 patents
Patents
23 patentsUS6597884B2Jul 22, 2003
Image forming apparatus including electrostatic conveyance of charged toner
RICOH KK79 citations97
US5394231AFeb 28, 1995
Image forming apparatus capable of forming an erasable image
RICOH KK105 citations96
US6708015B2Mar 16, 2004
Developing device and image forming apparatus using the same
RICOH KK20 citations92
US4910557AMar 20, 1990
Image density control method for an image forming apparatus
RICOH KK27 citations92
US4619522AOct 28, 1986
Dual mode image density controlling method
RICOH KK39 citations92
US4330749AMay 18, 1982
Electrometer apparatus
RICOH KK29 citations92
US4277549AJul 7, 1981
Copy image adjustment method
RICOH KK35 citations92
US4200391AApr 29, 1980
Electrostatographic apparatus comprising document density sensing means
RICOH KK49 citations92
US5864733AJan 26, 1999
Developing device for image forming apparatus
RICOH KK44 citations91
US5003354AMar 26, 1991
Method of removing a film from an image carrier of an image forming apparatus
RICOH KK30 citations91
US4975748ADec 4, 1990
Method of removing a film from an image carrier
RICOH KK40 citations91
US4474455AOct 2, 1984
Electrophotographic copying process and apparatus having means for monitoring a fatigue recovery time
RICOH KK27 citations89
US4508446AApr 2, 1985
Reproduction process control method
RICOH KK19 citations82
US4279498AJul 21, 1981
Electrostatographic copying apparatus with automatic toner density control
RICOH KK28 citations82
US4318042AMar 2, 1982
Electrometer probe
RICOH KK19 citations81
US7079798B2Jul 18, 2006
Toner transfer back suppressing color image forming apparatus
RICOH KK7 citations74
US4632537ADec 30, 1986
Electrophotographic apparatus
RICOH KK13 citations74
US4522481AJun 11, 1985
Toner supply control method for electrophotographic copier
RICOH KK15 citations74
US4487501ADec 11, 1984
Process of exposing photosensitive member
RICOH KK7 citations74
US4213693AJul 22, 1980
Electrostatographic apparatus comprising improved developing bias control
RICOH KK11 citations73
US5258248ANov 2, 1993
Image density control method for an image forming apparatus
RICOH KK12 citations72
US4266870AMay 12, 1981
Electrostatographic apparatus comprising developing bias means
RICOH KK5 citations62
US4191568AMar 4, 1980
Photosensitive material for electrophotography with dye containing overlayer
RICOH KK2 citations62