Inventor · disambiguated record
Kenji Matsuda
Also filed as: MATSUDA KENJI
117 granted patents·15 pending applications·2,734 citations·filing 1977–2025
99Inventor score
Files withCANON KK58MITSUBISHI ELECTRIC CORP10MURATA MANUFACTURING CO8HENKEL AG & CO KGAA7ISHIKAWAJIMA HARIMA HEAVY IND6
Top patents by PatentIndex Score
132 records- 0198US9823621B2Photosensitive member cartridge and process cartridgeCANON KK·Filed 2016·Granted Nov 21, 2017·28 cites·4 claims
- 0298US6357541B1Circulation apparatus for coolant in vehicleMITSUBISHI HEAVY IND LTD·Filed 1999·Granted Mar 19, 2002·146 cites·6 claims
- 0398US6324370B1Electrophotographic 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
- 0498US5528341AProcess cartridge with rotary member having bearing attachment portions of different diameters, and method for refusing such a rotary memberCANON KK·Filed 1994·Granted Jun 18, 1996·121 cites·13 claims
- 0597US11982972B2Photosensitive member cartridge and process cartridgeCANON KK·Filed 2022·Granted May 14, 2024·2 cites·4 claims
- 0697US10599094B2Photosensitive member cartridge and process cartridgeCANON KK·Filed 2018·Granted Mar 24, 2020·9 cites·10 claims
- 0797US10191446B2Photosensitive member cartridge and process cartridgeCANON KK·Filed 2017·Granted Jan 29, 2019·12 cites·20 claims
- 0897US6564029B2Cartridge having developer supply opening and image forming apparatus usable therewithCANON KK·Filed 2001·Granted May 13, 2003·85 cites·14 claims
- 0997US6151459ADevelopment cartridge and image forming apparatusCANON KK·Filed 1999·Granted Nov 21, 2000·124 cites·14 claims
- 1096US11899393B2Photosensitive member unit and development unitCANON KK·Filed 2022·Granted Feb 13, 2024·2 cites·15 claims
- 1196US7813670B2Developing cartridge, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2009·Granted Oct 12, 2010·23 cites·10 claims
- 1296US5697022AProcess cartridge, image forming apparatus usable therewith and process cartridge assembling methodCANON KK·Filed 1996·Granted Dec 9, 1997·96 cites·91 claims
- 1396US5678139AProcess cartridge with shutter for protecting photosensitive drumCANON KK·Filed 1994·Granted Oct 14, 1997·75 cites·104 claims
- 1496US5642187AProcess cartridge, image forming apparatus usable therewith and image forming systemCANON KK·Filed 1995·Granted Jun 24, 1997·94 cites·27 claims
- 1595US8837982B2Electrophotographic image forming apparatusMATSUDA KENJI·Filed 2011·Granted Sep 16, 2014·16 cites·8 claims
- 1695US8260171B2Electrophotographic image forming apparatusMATSUDA KENJI·Filed 2009·Granted Sep 4, 2012·23 cites·10 claims
- 1795US8000630B2Developing cartridge, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2010·Granted Aug 16, 2011·11 cites·6 claims
- 1895US6418292B1Developer 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
- 1995US6321697B1Cooling apparatus for vehicular engineMITSUBISHI HEAVY IND LTD·Filed 1999·Granted Nov 27, 2001·80 cites·2 claims
- 2095US6016408ADeveloper cartridge for developing a latent image detachably mountable to a main assembly of an image forming apparatusCANON KK·Filed 1997·Granted Jan 18, 2000·83 cites·12 claims
- 2195US5825472APhotosensitive drum, process cartridge and image forming apparatusCANON KK·Filed 1996·Granted Oct 20, 1998·91 cites·114 claims
- 2294US8565642B2Electrophotographic image forming apparatusMATSUDA KENJI·Filed 2012·Granted Oct 22, 2013·10 cites·9 claims
- 2394US6101352ADeveloping cartridge for developing an electrostatic image formed on an image bearing member with toner and being detachably mountable to a main assembly of an image forming apparatusCANON KK·Filed 1997·Granted Aug 8, 2000·79 cites·6 claims
- 2493US6272300B1Remanufacturing method for process cartridge, process cartridge and image forming apparatusCANON KK·Filed 1997·Granted Aug 7, 2001·68 cites·65 claims
- 2593US5867751AProcess cartridge detachably mountable to an image forming apparatus having an improved arrangement of voltage applying membersCANON KK·Filed 1997·Granted Feb 2, 1999·66 cites·48 claims
- 2692US6873815B2Part of an image forming apparatus and a unit having a groove covered with a brush memberCANON KK·Filed 2002·Granted Mar 29, 2005·40 cites·14 claims
- 2791US8521041B2Image forming apparatus with controller controlling an image forming operationKOJIMA KATSUHIRO·Filed 2011·Granted Aug 27, 2013·9 cites·13 claims
- 2890US5417280AStacked heat exchanger and method of manufacturing the sameMITSUBISHI HEAVY IND LTD·Filed 1993·Granted May 23, 1995·77 cites·12 claims
- 2988US7003233B2Image forming apparatus with a toner replenishing control feature based on stored toner density and fluidity information, related method, and developing agent replenishing container for sameCANON KK·Filed 2003·Granted Feb 21, 2006·30 cites·36 claims
- 3088US6394210B2Temperature controller for vehicular batteryMITSUBISHI HEAVY IND LTD·Filed 1999·Granted May 28, 2002·118 cites·6 claims
- 3188US2025258458A1Photosensitive member cartridge and process cartridgeCANON KK·Filed 2025·Application pending·0 cites
- 3287US12321129B2Photosensitive member cartridge and process cartridgeCANON KK·Filed 2024·Granted Jun 3, 2025·0 cites·6 claims
- 3387US8402954B2Ignition device for internal combustion engineMATSUDA KENJI·Filed 2010·Granted Mar 26, 2013·9 cites·8 claims
- 3487US6968147B2Process cartridge whose sealing tape is removed when mounted to image forming apparatus and image forming apparatus to which the cartridge is mountedCANON KK·Filed 2003·Granted Nov 22, 2005·29 cites·15 claims
- 3587US6865357B2Drive transmission mechanism for transmitting drive to processing means and cartridge provided with sameCANON KK·Filed 2002·Granted Mar 8, 2005·28 cites·46 claims
- 3687US6172422B1Semiconductor device and a manufacturing method thereofPFU LTD·Filed 1998·Granted Jan 9, 2001·106 cites·11 claims
- 3786US6980755B2Recycling method for developer supplying unit including the step of driving a feeding member in a direction to feed developer from a developer supply port to a developer accommodating portionCANON KK·Filed 2003·Granted Dec 27, 2005·26 cites·10 claims
- 3885US11149170B2Hot melt adhesive agent for container with strawHENKEL AG & CO KGAA·Filed 2019·Granted Oct 19, 2021·1 cites·4 claims
- 3984US12111608B2Photosensitive member unit and development unitCANON KK·Filed 2023·Granted Oct 8, 2024·0 cites·18 claims
- 4084US6556800B2Developer supply container and image forming apparatus capable of mounting the container thereonCANON KK·Filed 2001·Granted Apr 29, 2003·23 cites·11 claims
- 4184US6195515B1Developing apparatus including a seal member sandwiched between a developer bearing member and a leakage preventing memberCANON KK·Filed 1999·Granted Feb 27, 2001·35 cites·18 claims
- 4284USD340936SLawn mowerKUBOTA KK·Filed 1991·Granted Nov 2, 1993·25 cites·1 claims
- 4383US6144820ADeveloping apparatus with a sealing member having an insulating layer and a conductive portionCANON KK·Filed 1999·Granted Nov 7, 2000·32 cites·22 claims
- 4483US5650841AProcess cartridge, image forming apparatus usable therewith and toner seal mounting method for process cartridgeCANON KK·Filed 1996·Granted Jul 22, 1997·78 cites·118 claims
- 4582US8294384B2Dimming electronic ballast with preheat current controlMATSUDA KENJI·Filed 2009·Granted Oct 23, 2012·9 cites·20 claims
- 4682US4977733AFour wheel steering tractor having a mid-mount mowerKUBOTA LTD·Filed 1989·Granted Dec 18, 1990·39 cites·15 claims
- 4780US11789403B2Photosensitive member cartridge and process cartridgeCANON KK·Filed 2022·Granted Oct 17, 2023·0 cites·22 claims
- 4880US4784208ADual roll type continuous casting machineISHIKAWAJIMA HARIMA HEAVY IND·Filed 1988·Granted Nov 15, 1988·16 cites·9 claims
- 4979US12487552B2Image forming apparatus and cartridgeCANON KK·Filed 2024·Granted Dec 2, 2025·0 cites·3 claims
- 5079US6332497B1Vehicular air conditionerMITSUBISHI HEAVY IND LTD·Filed 1999·Granted Dec 25, 2001·38 cites·8 claims
Showing the top 50 of 132 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →