Inventor
MAESHIMA HIDEKI
JP71 patents
⚠️ This page may combine multiple inventors who share the name “MAESHIMA HIDEKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
46 patentsUS6980758B2Dec 27, 2005
Process cartridge, mounting mechanism therefor and electrophotographic image forming apparatus
CANON KK155 citations99
US8369743B2Feb 5, 2013
Process cartridge and electrophotographic image forming apparatus
CANON KK57 citations98
US7813671B2Oct 12, 2010
Process cartridge and electrophotographic image forming apparatus
CANON KK63 citations98
US7340197B2Mar 4, 2008
Process cartridge, mounting mechanism therefor and electrophotographic image forming apparatus
CANON KK62 citations98
US7162181B2Jan 9, 2007
Remanufacturing method for process cartridge
CANON KK74 citations98
US7158735B2Jan 2, 2007
Process cartridge, mounting method of electrophotographic photosensitive drum and replacing method of the photosensitive drum
CANON KK123 citations98
US7127194B2Oct 24, 2006
Process cartridge, positioning mechanism therefor and electrophotographic image forming apparatus
CANON KK83 citations98
US7088939B2Aug 8, 2006
Process cartridge and electrophotographic image forming apparatus
CANON KK80 citations98
US7072603B2Jul 4, 2006
Process cartridge and holding member
CANON KK106 citations98
US7072594B2Jul 4, 2006
Developing apparatus, process cartridge, and image forming apparatus
CANON KK82 citations98
US7046942B2May 16, 2006
Process cartridge and image forming apparatus
CANON KK70 citations98
US6968142B2Nov 22, 2005
Process cartridge and image forming apparatus
CANON KK89 citations98
US6947686B2Sep 20, 2005
Process cartridge and spacer for same
CANON KK101 citations98
US7349649B2Mar 25, 2008
Process cartridge, positioning mechanism therefor and electrophotographic image forming apparatus
CANON KK48 citations96
US8688003B2Apr 1, 2014
Process cartridge and electrophotographic image forming apparatus
CANON KK30 citations93
USD587304SFeb 24, 2009
Toner cartridge
CANON KK27 citations93
USD519150SApr 18, 2006
Image forming apparatus
CANON KK41 citations93
US10691063B2Jun 23, 2020
Process cartridge and image forming apparatus
CANON KK9 citations92
US7466939B2Dec 16, 2008
Electrophotographic image forming apparatus to which a plurality of process cartridges are detachably mountable by using a moving guide and an opening and closing member
CANON KK21 citations92
US7092657B2Aug 15, 2006
Electrophotographic image forming apparatus, and process cartridge
CANON KK38 citations92
US11073787B2Jul 27, 2021
Process cartridge with a coupling member having a movable force receiving portion
CANON KK5 citations84
US10025266B2Jul 17, 2018
Process cartridge including a coupling member and a sheet that contacts the coupling member
CANON KK9 citations84
US9880517B2Jan 30, 2018
Process cartridge and image forming apparatus
CANON KK14 citations84
US9696684B2Jul 4, 2017
Process cartridge and image forming apparatus
CANON KK7 citations84
USD788213SMay 30, 2017
Process cartridge for image forming apparatus
CANON KK6 citations84
US9632479B2Apr 25, 2017
Process cartridge and image forming apparatus
CANON KK10 citations84
US9063501B2Jun 23, 2015
Developer accommodating unit with light guide member for detecting remaining toner amount
CANON KK19 citations84
US7024134B2Apr 4, 2006
Rigid process cartridge and electrophotographic image forming apparatus incorporating the same
CANON KK7 citations74
US6947685B2Sep 20, 2005
Process cartridge and electrophotographic image forming apparatus
CANON KK9 citations74
US6922536B2Jul 26, 2005
Process cartridge and electrophotographic image forming apparatus
CANON KK7 citations74
US6839529B2Jan 4, 2005
Developing device and process cartridge
CANON KK7 citations74
US10712707B2Jul 14, 2020
Process cartridge having a positioning portion capable of positioning a driving force receiving portion of a coupling member
CANON KK2 citations73
US10698361B2Jun 30, 2020
Process cartridge having a coupling member and a coupling member supporting portion
CANON KK2 citations73
US10101688B2Oct 16, 2018
Gear unit, developing device, and manufacturing method therefor
CANON KK2 citations73
US9785086B2Oct 10, 2017
Developer container, developing device, process cartridge, and image forming apparatus
CANON KK2 citations73
USD790005SJun 20, 2017
Process cartridge for image forming apparatus
CANON KK3 citations73
USD790004SJun 20, 2017
Process cartridge for image forming apparatus
CANON KK3 citations73
USD789446SJun 13, 2017
Process cartridge for image forming apparatus
CANON KK4 citations73
US11392079B2Jul 19, 2022
Process cartridge and image forming apparatus
CANON KK0 citations63
US9519264B2Dec 13, 2016
Process cartridge and image forming apparatus
CANON KK2 citations63
US9507318B2Nov 29, 2016
Process cartridge and electrophotographic image forming apparatus
CANON KK1 citations63
US9122237B2Sep 1, 2015
Process cartridge and electrophotographic image forming apparatus
CANON KK1 citations63
US12585223B2Mar 24, 2026
Process cartridge and image forming apparatus
CANON KK0 citations62
US12292711B2May 6, 2025
Process cartridge and image forming apparatus
CANON KK0 citations62
US12174582B2Dec 24, 2024
Process cartridge and image forming apparatus
CANON KK0 citations62
US12130581B2Oct 29, 2024
Process cartridge and image forming apparatus
CANON KK0 citations62
MURAYAMA KAZUNARI
2 patentsUS8213828B2Jul 3, 2012
Electrophotographic image forming apparatus and process cartridge mounted thereto having contacts electrically connecting with an electrical contact
MURAYAMA KAZUNARI52 citations96
US8583006B2Nov 12, 2013
Electrophotographic image forming apparatus and process cartridge with electrical contacts that urge developer roller to photosensitive drum
MURAYAMA KAZUNARI28 citations91
NITTANI SUSUMU
1 patentKASHIIDE YOSUKE
1 patentShowing the top 50 of 71 patents by PatentIndex Score.