Inventor
YOKOMORI KANJI
JP55 patents
Patents
50 patentsUS6980758B2Dec 27, 2005
Process cartridge, mounting mechanism therefor and electrophotographic image forming apparatus
CANON KK155 citations99
US6463234B2Oct 8, 2002
Process cartridge and electrophotographic image forming apparatus
CANON KK171 citations99
US6215969B1Apr 10, 2001
Toner container, toner container assembling method, process cartridge, and electrophotographic image forming apparatus
CANON KK179 citations99
US6072969AJun 6, 2000
Developing cartridge
CANON KK217 citations99
US6064843AMay 16, 2000
Process cartridge and image forming apparatus
CANON KK177 citations99
US6029031AFeb 22, 2000
Process cartridge and remanufacturing method
CANON KK207 citations99
US5953562ASep 14, 1999
Process cartridge, assembling method for process cartridge and grounding member
CANON KK161 citations99
US5878309AMar 2, 1999
Toner container, toner container assembling method, process cartridge, and electrophotographic image forming apparatus
CANON KK208 citations99
US5839028ANov 17, 1998
Process cartridge and refilling method therefor
CANON KK185 citations99
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
US7072603B2Jul 4, 2006
Process cartridge and holding member
CANON KK106 citations98
US7016626B2Mar 21, 2006
Electrophotographic photosensitive drum having caulked flanges, process cartridge having such a drum, and image forming apparatus having such a process cartridge
CANON KK109 citations98
US6834171B2Dec 21, 2004
Developer container having a grip member, process cartridge mountable to an image forming apparatus having such a developer container, an image forming apparatus detachably mounting a process cartridge having such a developer container, a bearing structure having a grip member, and a side cover having a grip member
CANON KK98 citations98
US6459869B2Oct 1, 2002
Process cartridge and image forming apparatus
CANON KK119 citations98
US6381430B1Apr 30, 2002
Assembling and disassembling methods for developing cartridge
CANON KK138 citations98
US6345164B1Feb 5, 2002
Shutter pin and developing cartridge
CANON KK103 citations98
US6343192B1Jan 29, 2002
Developing device frame, process cartridge, and electrophotographic image forming apparatus
CANON KK111 citations98
US6256467B1Jul 3, 2001
Side cover of developing cartridge, mounting method thereof and developing cartridge
CANON KK95 citations98
US6226476B1May 1, 2001
Developing device holder having antenna contact mounting unit
CANON KK83 citations98
US6055406AApr 25, 2000
Cleaning frame, cleaning device, process cartridge and electrophotographic image forming apparatus with segregated waste toner container
CANON KK127 citations98
US6032002AFeb 29, 2000
Shutter, developing cartridge and electrophotographic image forming apparatus
CANON KK107 citations98
US5950049ASep 7, 1999
Developing cartridge
CANON KK111 citations98
US5943528AAug 24, 1999
Toner accommodating container with a gripping cover feature usable with a process cartridge, a process cartridge using the same, and an apparatus using the process cartridge
CANON KK99 citations98
US5940657AAug 17, 1999
Developing cartridge
CANON KK107 citations98
US7272339B2Sep 18, 2007
Process cartridge including first and second frames and separating member moving the second frame to a separated position and image forming apparatus detachably mounting the cartridge
CANON KK58 citations96
US7215909B2May 8, 2007
Developing device, and process cartridge maintaining position of developing roller, and image forming apparatus using these
CANON KK67 citations96
US6738588B2May 18, 2004
Image forming apparatus and process cartridge detachably attachable to the same
CANON KK53 citations96
US6684041B2Jan 27, 2004
Process cartridge, electrophotographic photosensitive drum, electrophotographic image forming apparatus and color electrophotographic image forming apparatus
CANON KK67 citations96
US6480687B1Nov 12, 2002
Process cartridge, handle attaching method and electrophotographic image forming apparatus
CANON KK65 citations96
US6463232B1Oct 8, 2002
Handle, process cartridge, handle attaching method and electrophotographic image forming apparatus
CANON KK66 citations96
US6282395B1Aug 28, 2001
Developing device and process cartridge
CANON KK62 citations96
US6169865B1Jan 2, 2001
Developing device frame process cartridge and electrophotographic image forming apparatus
CANON KK80 citations96
US6061535AMay 9, 2000
Developing cartridge, for a revolver type developing device, with sensing means for sensing the remaining toner
CANON KK85 citations96
US6029027AFeb 22, 2000
Developing cartridge and electrophotographic image forming apparatus
CANON KK81 citations96
US5815782ASep 29, 1998
Developing apparatus
CANON KK55 citations96
US7024137B2Apr 4, 2006
Developing device, developing cartridge, and process cartridge each urging developing roller into regulating portion, and image forming apparatus having such developing device or process cartridge
CANON KK46 citations94
US7039339B2May 2, 2006
Process cartridge and electrophotographic image forming apparatus
CANON KK18 citations93
USD519150SApr 18, 2006
Image forming apparatus
CANON KK41 citations93
US6934489B2Aug 23, 2005
Process cartridge and electrophotographic image forming apparatus
CANON KK34 citations93
US6535709B2Mar 18, 2003
Developing apparatus featuring an end of a regulating member coupled to a supporting member of the apparatus, regulating member, and method for assembling the same
CANON KK25 citations93
US6438347B2Aug 20, 2002
Developing device featuring a control member having a center portion width wider than end portions width in a longitudinal direction thereof for controlling developer thickness and method for using same
CANON KK39 citations93
US6229979B1May 8, 2001
Developing charging member supplied with a voltage of a same polarity as that of a developer and not less than a charge starting voltage and a developing charging roller with internal bearing
CANON KK31 citations93
US6002898ADec 14, 1999
Developing cartridge and image forming apparatus
CANON KK39 citations93
US5887227AMar 23, 1999
Developing device
CANON KK38 citations93
US8036543B2Oct 11, 2011
Developing apparatus, process cartridge and image forming apparatus
CANON KK17 citations84
US6654575B2Nov 25, 2003
Developer container having sealing member
CANON KK14 citations84
US6104895AAug 15, 2000
Developing cartridge side cover, mounting method thereof and developing cartridge
CANON KK19 citations84
US7146115B2Dec 5, 2006
Image forming apparatus and developing-agent amount detecting method, cartridge, and storage medium
CANON KK9 citations74
Showing the top 50 of 55 patents by PatentIndex Score.