Inventor · disambiguated record
Yukio Nagase
Also filed as: NAGASE YUKIO
41 granted patents·2 pending applications·854 citations·filing 1984–2025
98Inventor score
Top patents by PatentIndex Score
43 records- 0195US6128456AImage forming apparatus having a charging member applying an electric charge through electrically conductive or electroconductive particles to the surface of a photosensitive or image bearing memberCANON KK·Filed 1998·Granted Oct 3, 2000·76 cites·33 claims
- 0294US6996358B2Toner kit, toner, method for forming an image, and image forming apparatusCANON KK·Filed 2003·Granted Feb 7, 2006·48 cites·123 claims
- 0392US4783716ACharging or discharging deviceCANON KK·Filed 1987·Granted Nov 8, 1988·42 cites·22 claims
- 0489US4674857AImage recording apparatusCANON KK·Filed 1985·Granted Jun 23, 1987·34 cites·16 claims
- 0587US8472829B2Measuring apparatus, measuring method and image forming apparatusATSUMI TETSUYA·Filed 2012·Granted Jun 25, 2013·4 cites·14 claims
- 0685US5153609AImage forming apparatusCANON KK·Filed 1990·Granted Oct 6, 1992·33 cites·20 claims
- 0784US6134407ACharging apparatus for charging a moving member to be charged including an elastic rotatable member carrying electroconductive particles on the surface thereofCANON KK·Filed 1998·Granted Oct 17, 2000·29 cites·13 claims
- 0879US6504565B1Light-emitting device, exposure device, and image forming apparatusCANON KK·Filed 1999·Granted Jan 7, 2003·61 cites·28 claims
- 0979US6289190B1Electrophotographic apparatus and process cartridgeCANON KK·Filed 1999·Granted Sep 11, 2001·27 cites·56 claims
- 1077US8213820B2Measuring apparatus, measuring method and image forming apparatusATSUMI TETSUYA·Filed 2009·Granted Jul 3, 2012·4 cites·16 claims
- 1177US5576812ADeveloping method with carrier chains contacted to image bearing memberCANON KK·Filed 1994·Granted Nov 19, 1996·21 cites·8 claims
- 1277US5148287AImage processing apparatus with good highlight reproductionCANON KK·Filed 1989·Granted Sep 15, 1992·30 cites·15 claims
- 1376US4697196AElectrostatic recording method and apparatusCANON KK·Filed 1986·Granted Sep 29, 1987·24 cites·48 claims
- 1475US6879788B2Image forming apparatus with density detecting meansCANON KK·Filed 2003·Granted Apr 12, 2005·11 cites·27 claims
- 1573US6266074B1Light emitting apparatus with temperature control, exposure apparatus, and image forming apparatusCANON KK·Filed 1999·Granted Jul 24, 2001·28 cites·20 claims
- 1673US5818489AImage forming apparatus and process cartridge having exposure device using light beam having specific spot areaCANON KK·Filed 1995·Granted Oct 6, 1998·22 cites·20 claims
- 1770US6081681ACharging device, charging method, process cartridge and image forming apparatusCANON KK·Filed 1998·Granted Jun 27, 2000·38 cites·51 claims
- 1870US5666589AElectrophotographic apparatus and image forming method using a photosensitive member with exposure characteristics responsive to field intensityCANON KK·Filed 1995·Granted Sep 9, 1997·20 cites·32 claims
- 1970US5359433AImage processing apparatus with reduced image deterioration in highlight portionsCANON KK·Filed 1993·Granted Oct 25, 1994·30 cites·22 claims
- 2068US12493250B2External additive particles, toner, and method for producing external additive particlesCANON KK·Filed 2021·Granted Dec 9, 2025·0 cites·13 claims
- 2168US6035076AImage forming apparatusCANON KK·Filed 1995·Granted Mar 7, 2000·25 cites·8 claims
- 2264US4700261AMethod and apparatus for electrically charging or dischargingCANON KK·Filed 1986·Granted Oct 13, 1987·13 cites·16 claims
- 2363US6580889B1Image forming apparatus having a member to be charged, injection charging means having an elastic member for press-contacting the member to be charged, and electroconductive particles between the elastic member and the member to be chargedCANON KK·Filed 2000·Granted Jun 17, 2003·7 cites·18 claims
- 2461US6121994AImage forming apparatus and light emitting apparatusCANON KK·Filed 1998·Granted Sep 19, 2000·27 cites·18 claims
- 2560US5341165AScanning controller for color electrophotographic apparatusCANON KK·Filed 1992·Granted Aug 23, 1994·12 cites·7 claims
- 2659US5459559AMagnetic brush developing method using a two-component developerCANON KK·Filed 1994·Granted Oct 17, 1995·11 cites·6 claims
- 2758US6803932B2Image forming apparatusCANON KK·Filed 2003·Granted Oct 12, 2004·14 cites·4 claims
- 2858US5438394AImage forming apparatus usable with a carrier having magnetization controlled in relation to recording densityCANON KK·Filed 1993·Granted Aug 1, 1995·11 cites·13 claims
- 2956US5469266AColor image processing apparatus which uses different screen angles for different color componentsCANON KK·Filed 1994·Granted Nov 21, 1995·13 cites·26 claims
- 3055US2025270380A1Rubber member, method for manufacturing the same, and method for using the sameCANON KK·Filed 2025·Application pending·0 cites
- 3154US5748328AColor image processing apparatus which forms dot images at varying positions on a scanning lineCANON KK·Filed 1995·Granted May 5, 1998·15 cites·32 claims
- 3250US5313233AImage forming apparatusCANON KK·Filed 1993·Granted May 17, 1994·12 cites·19 claims
- 3347US4589053AMethod and device for charging or discharging a memberCANON KK·Filed 1984·Granted May 13, 1986·8 cites·16 claims
- 3446US6583805B2Exposure unit for image forming apparatus using electrophotographic system, and electrophotographic image forming apparatusCANON KK·Filed 1999·Granted Jun 24, 2003·29 cites·14 claims
- 3546US6188420B1Image forming apparatusCANON KK·Filed 1998·Granted Feb 13, 2001·11 cites·9 claims
- 3645US7343112B2Image forming apparatus using hypochromatic toner and hyperchromatic tonerCANON KK·Filed 2004·Granted Mar 11, 2008·2 cites·7 claims
- 3744US6661445B2Exposure apparatus with an array of light emitting devicesCANON KK·Filed 1999·Granted Dec 9, 2003·25 cites·3 claims
- 3842US6344661B1Light emitting element array, exposure device and image forming apparatusCANON KK·Filed 1999·Granted Feb 5, 2002·21 cites·10 claims
- 3942US4785372AMethod and device for charging or discharging memberCANON KK·Filed 1986·Granted Nov 15, 1988·5 cites·12 claims
- 4041US4709298AMethod and device for charging or discharging a memberCANON KK·Filed 1986·Granted Nov 24, 1987·7 cites·10 claims
- 4140US5049472AMethod and apparatus of recording imageCANON KK·Filed 1989·Granted Sep 17, 1991·3 cites·9 claims
- 4235US2016299453A1Image forming apparatusCANON KK·Filed 2016·Application pending·0 cites
- 4331US5877799AIllumination control means for image forming apparatusCANON KK·Filed 1995·Granted Mar 2, 1999·1 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →