Inventor
NAKAJIMA SHIGEKI
JP39 patents
⚠️ This page may combine multiple inventors who share the name “NAKAJIMA SHIGEKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OKI DATA KK
17 patentsUS5722019AFeb 24, 1998
Toner cartridge and drum cartridge for receiving the toner cartridge therein
OKI DATA KK56 citations96
US6061537AMay 9, 2000
Electrophotographic printer
OKI DATA KK31 citations93
US5956556ASep 21, 1999
Toner recycling method and mechanism employing a belt conveyor
OKI DATA KK36 citations93
US6496671B2Dec 17, 2002
Toner cartridge with locking toner discharge opening
OKI DATA KK41 citations92
US6363233B1Mar 26, 2002
Compact toner cartridge with fresh and waste toner chambers
OKI DATA KK51 citations92
US6151472ANov 21, 2000
Toner cartridge and drum cartridge for receiving the toner cartridge therein
OKI DATA KK20 citations92
US6112037AAug 29, 2000
Color image forming apparatus having a controller for setting printing speeds in dependence on a detected number of colors in an image signal
OKI DATA KK37 citations92
US5975518ANov 2, 1999
Paper feeding mechanism
OKI DATA KK30 citations92
US6882811B2Apr 19, 2005
Image drum cartridge and developing unit having a movable developing roller
OKI DATA KK13 citations84
USRE38978EFeb 14, 2006
Toner transporting method and mechanism employing a belt conveyor
OKI DATA KK8 citations74
USD389860SJan 27, 1998
Toner cartridge
OKI DATA KK8 citations74
USD451539SDec 4, 2001
Toner cartridge
OKI DATA KK6 citations73
USD450752SNov 20, 2001
Toner cartridge
OKI DATA KK9 citations73
USD450344SNov 13, 2001
Image drum cartridge
OKI DATA KK10 citations73
US6021292AFeb 1, 2000
Toner cartridge and toner collecting mechanism
OKI DATA KK15 citations73
US5983042ANov 9, 1999
Color image forming apparatus having a printing mechanism selectively movable to operative and non-operative positions
OKI DATA KK9 citations73
USD462379SSep 3, 2002
Image drum cartridge
OKI DATA KK5 citations62
OKI ELECTRIC IND CO LTD
15 patentsUS5419544AMay 30, 1995
Paper cassette and paper cassette insertion mechanism
OKI ELECTRIC IND CO LTD72 citations96
US5235389AAug 10, 1993
Replaceable toner cartridge with internal stirring member, and electrophotographic printer employing the same
OKI ELECTRIC IND CO LTD92 citations95
US5737664AApr 7, 1998
Overheating prevention device for a fixing unit
OKI ELECTRIC IND CO LTD25 citations92
US5264900ANov 23, 1993
Developing device including toner hopper and toner cartridge stirring portions
OKI ELECTRIC IND CO LTD38 citations92
US5216462AJun 1, 1993
Toner residual amount detecting mechanism
OKI ELECTRIC IND CO LTD48 citations91
USD321716SNov 19, 1991
Toner cartridge
OKI ELECTRIC IND CO LTD17 citations82
US4905028AFeb 27, 1990
Electrophotographic printer
OKI ELECTRIC IND CO LTD20 citations81
USD356815SMar 28, 1995
Toner cartridge
OKI ELECTRIC IND CO LTD11 citations74
USD354980SJan 31, 1995
Image drum cartridge
OKI ELECTRIC IND CO LTD10 citations74
US5289249AFeb 22, 1994
Electrophotographic printer having a gravity driven toner recycling unit
OKI ELECTRIC IND CO LTD17 citations74
US5280324AJan 18, 1994
Toner cartridge
OKI ELECTRIC IND CO LTD15 citations74
USD332962SFeb 2, 1993
Image drum cartridge
OKI ELECTRIC IND CO LTD14 citations74
US5307134AApr 26, 1994
Electrophotographic apparatus
OKI ELECTRIC IND CO LTD9 citations73
US5132734AJul 21, 1992
Developing apparatus
OKI ELECTRIC IND CO LTD16 citations73
US5184177AFeb 2, 1993
Electrophotographic printing apparatus
OKI ELECTRIC IND CO LTD6 citations63