Inventor · disambiguated record
Hironobu Isobe
Also filed as: ISOBE HIRONOBU
32 granted patents·2,465 citations·filing 1989–2005
98Inventor score
Files withCANON KK32
Top patents by PatentIndex Score
32 records- 0199US6463233B2Process cartridge having first and second cartridge guiding portions and an electrophotographic image forming apparatus to which the process cartridge is attachedCANON KK·Filed 2001·Granted Oct 8, 2002·133 cites·16 claims
- 0299US5585889AProcess cartridge and image forming apparatusCANON KK·Filed 1993·Granted Dec 17, 1996·335 cites·52 claims
- 0399US5452056AImage forming apparatus, process cartridge mountable within it and method for attaching photosensitive drum to process cartridgeCANON KK·Filed 1994·Granted Sep 19, 1995·274 cites·31 claims
- 0499US5331373AImage forming apparatus, process cartridge mountable within it and method for attaching photosensitive drum to process cartridgeCANON KK·Filed 1993·Granted Jul 19, 1994·291 cites·34 claims
- 0598US7155137B2Process cartridge, developing cartridge and developing rollerCANON KK·Filed 2005·Granted Dec 26, 2006·46 cites·6 claims
- 0698US6826380B2Information storing medium, unit, process cartridge, developing cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2002·Granted Nov 30, 2004·95 cites·29 claims
- 0798US6782219B2Cartridge and electrophotographic image forming apparatusCANON KK·Filed 2002·Granted Aug 24, 2004·101 cites·21 claims
- 0898US6442359B1Process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus comprising means for rotating a charging unit if first and second rotational directions and the apparatus mounting such a process cartridgeCANON KK·Filed 1999·Granted Aug 27, 2002·126 cites·16 claims
- 0998US6324370B1Electrophotographic image forming apparatus detachably mounting a developer replenishing container or in which a plurality of cartridges and developer replenishing containers are attachably and detachably positionedCANON KK·Filed 2000·Granted Nov 27, 2001·106 cites·14 claims
- 1098US6064843AProcess cartridge and image forming apparatusCANON KK·Filed 1997·Granted May 16, 2000·177 cites·180 claims
- 1197US7082276B2Information storing medium, unit, process cartridge, developing cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2004·Granted Jul 25, 2006·79 cites·29 claims
- 1297US6564029B2Cartridge having developer supply opening and image forming apparatus usable therewithCANON KK·Filed 2001·Granted May 13, 2003·85 cites·14 claims
- 1396US6983115B2Developing cartridge and process cartridge having first and second projected portions and image forming apparatus mounting such a developing cartridgeCANON KK·Filed 2003·Granted Jan 3, 2006·79 cites·19 claims
- 1496US5155537ASheet feeding apparatus with a plurality of easily loaded cassettesCANON KK·Filed 1989·Granted Oct 13, 1992·53 cites·34 claims
- 1595US6418292B1Developer replenishing container with movable shutter feature, cartridge and image forming apparatus employing developer replenishing containerCANON KK·Filed 2000·Granted Jul 9, 2002·65 cites·23 claims
- 1694US6978100B2Process cartridge, developing cartridge and developing rollerCANON KK·Filed 2003·Granted Dec 20, 2005·46 cites·8 claims
- 1792US5995782ADeveloping cartridge with mounting positioning feature and image forming apparatus using the sameCANON KK·Filed 1997·Granted Nov 30, 1999·60 cites·35 claims
- 1890US5283619ADeveloping apparatus and process cartridge having sameCANON KK·Filed 1992·Granted Feb 1, 1994·39 cites·24 claims
- 1989US6704521B2Image forming apparatus and image forming methodCANON KK·Filed 2001·Granted Mar 9, 2004·28 cites·39 claims
- 2085USD477631SDeveloping cartridgeCANON KK·Filed 2002·Granted Jul 22, 2003·30 cites·1 claims
- 2185US6381419B1Image forming apparatus with developer density and developer remaining amount detection featuresCANON KK·Filed 2000·Granted Apr 30, 2002·25 cites·30 claims
- 2284US6556800B2Developer supply container and image forming apparatus capable of mounting the container thereonCANON KK·Filed 2001·Granted Apr 29, 2003·23 cites·11 claims
- 2383US5739900ACylindrical member and engagement member assembly using plural fitting portion pairsCANON KK·Filed 1997·Granted Apr 14, 1998·34 cites·28 claims
- 2482US5383655ASheet feeding apparatusCANON KK·Filed 1993·Granted Jan 24, 1995·27 cites·18 claims
- 2579US6754454B1Image forming apparatus capable of discriminating a service life of detachably mounted process unitCANON KK·Filed 2000·Granted Jun 22, 2004·16 cites·29 claims
- 2678US7110684B2Cartridge for replenishing developer including a memory device and a control system featuring the cartridgeCANON KK·Filed 2002·Granted Sep 19, 2006·14 cites·16 claims
- 2778US5923926ADeveloping device and electrophotographic image forming apparatusCANON KK·Filed 1997·Granted Jul 13, 1999·27 cites·20 claims
- 2877US6839534B2Image forming apparatus and developer supply container removably mountable in image forming apparatusCANON KK·Filed 2001·Granted Jan 4, 2005·16 cites·10 claims
- 2963US6295429B1Image forming apparatus featuring intermittent operation of a developing unit supporting rotary member based on fixing temperatureCANON KK·Filed 1998·Granted Sep 25, 2001·15 cites·14 claims
- 3057US6064844ADeveloping apparatusCANON KK·Filed 1999·Granted May 16, 2000·12 cites·16 claims
- 3145US6718144B2Image forming apparatus and process unit mountable to image forming apparatusCANON KK·Filed 2002·Granted Apr 6, 2004·2 cites·25 claims
- 3244US6253043B1Developer sealing member and developing apparatus provided with the sameCANON KK·Filed 1999·Granted Jun 26, 2001·6 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →