Inventor
NISHIUWATOKO TSUTOMU
JP55 patents
⚠️ This page may combine multiple inventors who share the name “NISHIUWATOKO TSUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
30 patentsUS5966566AOct 12, 1999
Recycle method for process cartridge and image forming apparatus
CANON KK235 citations99
US5768658AJun 16, 1998
Electrode member, developing apparatus, process cartridge and image forming apparatus
CANON KK195 citations99
US6070029AMay 30, 2000
Coupling member, process cartridge, electrophotographic image forming apparatus and assembling method
CANON KK110 citations98
US5893006AApr 6, 1999
Process cartridge detectably mountable to image forming apparatus and image forming apparatus using same
CANON KK125 citations98
US5870655AFeb 9, 1999
Process cartridge having a particular arrangement of electrical contacts and electrophotographic image forming apparatus using such a process cartridge
CANON KK107 citations98
US5815644ASep 29, 1998
Developing frame, process cartridge and image forming apparatus
CANON KK101 citations98
US5937240AAug 10, 1999
Process cartridge having positioning members and image forming apparatus using such a process cartridge
CANON KK108 citations97
US5729796AMar 17, 1998
Shutter having first and second shutter members, process cartridge and image forming apparatus having the shutter
CANON KK88 citations96
US5585902ADec 17, 1996
Toner cartridge, process cartridge and electrophotographic image forming apparatus
CANON KK53 citations96
US7817936B2Oct 19, 2010
Color electrophotographic image forming apparatus
CANON KK25 citations93
US6901229B2May 31, 2005
Driving-force transmitting part, electrophotographic photosensitive drum, process cartridge and electrophotographic image forming apparatus
CANON KK34 citations93
US6141508AOct 31, 2000
Developing apparatus and process cartridge
CANON KK51 citations93
US6141513AOct 31, 2000
Toner cartridge, process cartridge, and electrophotographic image forming apparatus
CANON KK41 citations93
US6137973AOct 24, 2000
Cleaning apparatus and process cartridge having such cleaning apparatus
CANON KK46 citations93
US6137971AOct 24, 2000
End member and process cartridge
CANON KK27 citations93
US8768208B2Jul 1, 2014
Image forming apparatus with cartridge supporting member and preventing members for ensuring mounting of cartridges in associated mounting portions
CANON KK9 citations84
US8737872B2May 27, 2014
Image forming apparatus having a door path regulating member
CANON KK6 citations84
US8626008B2Jan 7, 2014
Electrophotographic image forming apparatus with removed developer accommodating container for receiving developer cleaned from an image bearing member
CANON KK9 citations84
US8626025B2Jan 7, 2014
Electrophotographic image forming apparatus
CANON KK9 citations84
US6144819ANov 7, 2000
Apparatus for applying voltage to charging member and charging apparatus
CANON KK16 citations84
US6522854B2Feb 18, 2003
Developing apparatus preventing rotation between magnet and bearing
CANON KK7 citations74
US6240268B1May 29, 2001
Gap retaining member and developing device employing the same
CANON KK14 citations74
US9046871B2Jun 2, 2015
Process cartridge, main cartridge, sub cartridge, and image forming apparatus
CANON KK5 citations73
US9606501B2Mar 28, 2017
Image forming apparatus and drawer member
CANON KK1 citations63
US9429900B2Aug 30, 2016
Cartridge supporting member having different moving direction guide portions
CANON KK2 citations63
US9037039B2May 19, 2015
Electrophotographic image forming apparatus
CANON KK1 citations63
US8983334B2Mar 17, 2015
Image forming apparatus having a path regulating member
CANON KK1 citations63
US8355648B2Jan 15, 2013
Cartridge
CANON KK4 citations59
US10289058B2May 14, 2019
Image forming apparatus and drawer member
CANON KK0 citations52
US10061260B2Aug 28, 2018
Image forming apparatus and drawer member
CANON KK0 citations52
KIKUCHI KEN
11 patentsUS8565638B2Oct 22, 2013
Unit and electrophotographic image forming apparatus
KIKUCHI KEN9 citations84
US8509650B2Aug 13, 2013
Electrophotographic image forming apparatus
KIKUCHI KEN15 citations84
US8412070B2Apr 2, 2013
Electrophotographic image forming apparatus including a cartridge mounting feature
KIKUCHI KEN6 citations84
US8396380B2Mar 12, 2013
Electrophotographic image forming apparatus with removed-developer accommodating chamber for receiving developer cleaned from electrophotographic photosensitive drums
KIKUCHI KEN9 citations84
US8185013B2May 22, 2012
Electrophotographic image forming apparatus including a regulating member for limiting cartridge movement
KIKUCHI KEN13 citations84
US8682212B2Mar 25, 2014
Electrophotographic image forming apparatus
KIKUCHI KEN4 citations73
US8467701B2Jun 18, 2013
Color electrophotographic image forming apparatus
KIKUCHI KEN5 citations73
US8406657B2Mar 26, 2013
Color electrophotographic image forming apparatus
KIKUCHI KEN3 citations63
US8320794B2Nov 27, 2012
Electrophotographic image forming apparatus
KIKUCHI KEN4 citations63
US9014596B2Apr 21, 2015
Electrophotographic image forming apparatus
KIKUCHI KEN1 citations52
US8639158B2Jan 28, 2014
Electrophotographic image forming apparatus
KIKUCHI KEN1 citations52
AKUTSU TAKASHI
3 patentsUS8463156B2Jun 11, 2013
Image forming apparatus with movable cartridge supporting member
AKUTSU TAKASHI18 citations92
US8571440B2Oct 29, 2013
Image forming apparatus with cartridge supporting member and preventing member for preventing movement of cartridge supporting member
AKUTSU TAKASHI9 citations84
US8483594B2Jul 9, 2013
Image forming apparatus with cartridge supporting member and members for preventing movement of cartridge supporting member
AKUTSU TAKASHI10 citations84
NISHIUWATOKO TSUTOMU
3 patentsSUZUKI KENSUKE
1 patentHIRAMATSU DAISUKE
1 patent(unassigned)
1 patentShowing the top 50 of 55 patents by PatentIndex Score.