Inventor · disambiguated record
Yuji Kawaguchi
Also filed as: KAWAGUCHI YUJI
58 granted patents·4 pending applications·277 citations·filing 1983–2024
98Inventor score
Top patents by PatentIndex Score
62 records- 0196US10452021B2Process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2018·Granted Oct 22, 2019·14 cites·8 claims
- 0295US9158238B2Image forming apparatus using stretch member and contact member to maintain potential with current flowing from current supply member to intermediate transfer beltCANON KK·Filed 2013·Granted Oct 13, 2015·10 cites·35 claims
- 0394US9417568B2Image forming apparatus using stretch member and contact member to maintain potential with a current flowing to intermediate transfer beltCANON KK·Filed 2015·Granted Aug 16, 2016·6 cites·32 claims
- 0493US9002227B2Image forming apparatusCANON KK·Filed 2013·Granted Apr 7, 2015·8 cites·13 claims
- 0592US11275326B2Developing device to reduce leakage of developerCANON KK·Filed 2020·Granted Mar 15, 2022·2 cites·16 claims
- 0692US9817342B2Image forming apparatus using stretch member and contact member to maintain potential with a current flowing to intermediate transer beltCANON KK·Filed 2016·Granted Nov 14, 2017·4 cites·16 claims
- 0791US9817154B2Acrylic resin film and retroreflective sheetMITSUBISHI RAYON CO·Filed 2013·Granted Nov 14, 2017·5 cites·15 claims
- 0891US5002028AThrottle control system for vehicular internal combustion engineHONDA MOTOR CO LTD·Filed 1989·Granted Mar 26, 1991·47 cites·20 claims
- 0987US10866533B2Image forming apparatusCANON KK·Filed 2019·Granted Dec 15, 2020·2 cites·11 claims
- 1086US9874830B2Image forming apparatus with a control that compensates for changing humidityCANON KK·Filed 2016·Granted Jan 23, 2018·2 cites·12 claims
- 1185US8909111B2Image forming apparatusCANON KK·Filed 2013·Granted Dec 9, 2014·3 cites·16 claims
- 1285US8155539B2Image forming apparatus with electrostatic capacity detectionKAWASAKI SHUHEI·Filed 2009·Granted Apr 10, 2012·9 cites·4 claims
- 1384US10180643B2Image forming apparatus having intermediate transfer belt, secondary transfer member that contacts outer surface of intermediate transfer belt, opposed member opposed to secondary transfer member via intermediate transfer belt, contact member that contacts inner surface of intermediate transfer belt, and constant-voltage element through which opposed member and contact member are groundedCANON KK·Filed 2017·Granted Jan 15, 2019·1 cites·14 claims
- 1484US7066321B2Paper containerKAO CORP·Filed 2001·Granted Jun 27, 2006·42 cites·9 claims
- 1584US2025021033A1Developing deviceCANON KK·Filed 2024·Application pending·0 cites
- 1683US11204565B2Developing apparatus to increase adhesion between a seal member and a regulation portion in the developing apparatusCANON KK·Filed 2020·Granted Dec 21, 2021·1 cites·4 claims
- 1783US9063497B2Image forming apparatus having a power supply common to primary transfer and secondary transferCANON KK·Filed 2013·Granted Jun 23, 2015·3 cites·16 claims
- 1882US12174555B2Developing deviceCANON KK·Filed 2023·Granted Dec 24, 2024·0 cites·4 claims
- 1981US10295926B2Image forming apparatusCANON KK·Filed 2018·Granted May 21, 2019·1 cites·12 claims
- 2081US5094212AThrottle body assemblyHONDA MOTOR CO LTD·Filed 1990·Granted Mar 10, 1992·42 cites·5 claims
- 2175US11841636B2Developing device to reduce leakage of developerCANON KK·Filed 2022·Granted Dec 12, 2023·0 cites·4 claims
- 2274US9897942B2Image forming apparatus controlling contact pressure between image bearing member and transfer deviceCANON KK·Filed 2016·Granted Feb 20, 2018·1 cites·18 claims
- 2374US8811833B2Image forming apparatusADACHI MOTOKI·Filed 2010·Granted Aug 19, 2014·2 cites·30 claims
- 2471US8891986B2Image forming apparatusKAWAGUCHI YUJI·Filed 2011·Granted Nov 18, 2014·2 cites·6 claims
- 2570US10627749B2Image forming apparatus having transfer power source that applies voltage to secondary transfer member to perform secondary transfer of toner images from electrically conductive intermediate transfer belt to recording materials, toner images on image carrier primarily transferred to belt by transfer power source and contact member in which an electric potential is formed by constant-voltage element, transfer power source and auxiliary power sourceCANON KK·Filed 2018·Granted Apr 21, 2020·0 cites·9 claims
- 2668US11561485B2Developing apparatus to increase adhesion between a seal member and a regulation portion in the developing apparatusCANON KK·Filed 2021·Granted Jan 24, 2023·0 cites·4 claims
- 2767US9176436B2Image forming apparatus with a brush member configured to charge untransferred developer materialCANON KK·Filed 2012·Granted Nov 3, 2015·1 cites·13 claims
- 2867US4794301AFluorescent lamp having a convoluted discharge passage and fluorescent lamp apparatus incorporating the sameTOSHIBA KK·Filed 1987·Granted Dec 27, 1988·16 cites·17 claims
- 2965US4742881ARadiator attaching apparatusHONDA MOTOR CO LTD·Filed 1986·Granted May 10, 1988·28 cites·7 claims
- 3064US10216143B2Image forming apparatus having a lubricant and developer of opposite polarityCANON KK·Filed 2017·Granted Feb 26, 2019·0 cites·9 claims
- 3164US10197939B2Image forming apparatus with a control that compensates for changing humidityCANON KK·Filed 2017·Granted Feb 5, 2019·0 cites·15 claims
- 3262US9250576B2Image forming apparatusCANON KK·Filed 2014·Granted Feb 2, 2016·0 cites·14 claims
- 3362US8687987B2Image forming apparatusYANO KOUKI·Filed 2012·Granted Apr 1, 2014·1 cites·10 claims
- 3461US10241445B2Image forming apparatusCANON KK·Filed 2018·Granted Mar 26, 2019·0 cites·14 claims
- 3561US9110433B2Image forming apparatusCANON KK·Filed 2014·Granted Aug 18, 2015·0 cites·6 claims
- 3659US8600249B2Image forming apparatusKAWAGUCHI YUJI·Filed 2009·Granted Dec 3, 2013·2 cites·6 claims
- 3757US9874848B2Image forming apparatus having a lubricant and developer of opposite polarityCANON KK·Filed 2015·Granted Jan 23, 2018·0 cites·38 claims
- 3857US4553510ACylinder head for internal combustion enginesHONDA MOTOR CO LTD·Filed 1983·Granted Nov 19, 1985·15 cites·10 claims
- 3956US9256187B2Image forming apparatus using two power supply units to control transfer currentCANON KK·Filed 2015·Granted Feb 9, 2016·0 cites·13 claims
- 4054US9128411B2Developing device, process cartridge, and electrophotographic apparatusCANON KK·Filed 2014·Granted Sep 8, 2015·0 cites·7 claims
- 4152US12074048B2Substrate processing apparatus and substrate processing methodTOKYO ELECTRON LTD·Filed 2021·Granted Aug 27, 2024·0 cites·14 claims
- 4248US10254694B2Image forming apparatusCANON KK·Filed 2018·Granted Apr 9, 2019·0 cites·11 claims
- 4348US9069282B2Image forming apparatus to detect amount of remaining developerCANON KK·Filed 2012·Granted Jun 30, 2015·0 cites·19 claims
- 4448US2015368414A1Acrylic resin film, and laminate and solar cell module each of which uses sameMITSUBISHI RAYON CO·Filed 2013·Application pending·0 cites
- 4547US10571823B2Image forming apparatus having recovery of toner by developing member, control of charging voltage and charging member cleaning operationCANON KK·Filed 2019·Granted Feb 25, 2020·0 cites·20 claims
- 4646US10558138B2Image forming apparatusCANON KK·Filed 2019·Granted Feb 11, 2020·0 cites·19 claims
- 4746US8995861B2Image forming apparatusKITAMURA TAKUYA·Filed 2011·Granted Mar 31, 2015·0 cites·13 claims
- 4845US10493737B2Thermoplastic resin composition for matting, fluorine-based matte film, and fluorine-based matte layered filmMITSUBISHI CHEM CORP·Filed 2015·Granted Dec 3, 2019·0 cites·13 claims
- 4945US8718503B2Image forming apparatusKANAZAWA TAKAYUKI·Filed 2010·Granted May 6, 2014·0 cites·10 claims
- 5044US10656553B2Image forming apparatus capable of efficiently reducing the influence of discharge products adhering to the surface of an image bearing memberCANON KK·Filed 2018·Granted May 19, 2020·0 cites·17 claims
Showing the top 50 of 62 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →