Inventor · disambiguated record
Nobuyoshi Sugahara
Also filed as: SUGAHARA NOBUYOSHI
38 granted patents·9 pending applications·883 citations·filing 2000–2024
98Inventor score
Files withCANON KK47
Top patents by PatentIndex Score
47 records- 0198US9778598B2Magnetic carrierCANON KK·Filed 2016·Granted Oct 3, 2017·24 cites·3 claims
- 0298US9599920B2Magnetic carrier and two-component developerCANON KK·Filed 2015·Granted Mar 21, 2017·29 cites·8 claims
- 0398US7396626B2TonerCANON KK·Filed 2005·Granted Jul 8, 2008·55 cites·6 claims
- 0498US7396629B2Image forming method and image forming apparatusCANON KK·Filed 2005·Granted Jul 8, 2008·53 cites·12 claims
- 0598US7300733B2Black toner with defined loss tangentCANON KK·Filed 2005·Granted Nov 27, 2007·38 cites·7 claims
- 0697US9958809B2Magnetic carrierCANON KK·Filed 2016·Granted May 1, 2018·18 cites·5 claims
- 0797US9500975B2Magnetic carrier and two-component developerCANON KK·Filed 2015·Granted Nov 22, 2016·30 cites·11 claims
- 0897US7442478B2Toner and method for forming imageCANON KK·Filed 2007·Granted Oct 28, 2008·34 cites·5 claims
- 0996US10409188B2Magnetic carrier, two-component developer, replenishing developer, and image forming methodCANON KK·Filed 2018·Granted Sep 10, 2019·10 cites·14 claims
- 1096US10007206B2Magnetic carrier, two-component developer, replenishing developer, and image-forming methodCANON KK·Filed 2017·Granted Jun 26, 2018·11 cites·11 claims
- 1196US9785070B2Magnetic carrier, two-component developer, replenishment developer, and image formation methodCANON KK·Filed 2016·Granted Oct 10, 2017·14 cites·15 claims
- 1296US7147980B2Toner and image forming apparatusCANON KK·Filed 2004·Granted Dec 12, 2006·69 cites·10 claims
- 1396US6751424B2Image-forming method in high-speed mode and in low-speed modeCANON KK·Filed 2002·Granted Jun 15, 2004·71 cites·12 claims
- 1495US7288348B2Color tonerCANON KK·Filed 2004·Granted Oct 30, 2007·60 cites·13 claims
- 1595US7279262B2Magnetic carrier and two-component developerCANON KK·Filed 2004·Granted Oct 9, 2007·60 cites·21 claims
- 1693US10877391B2Magnetic carrier, two-component developer, replenishing developer, and image forming methodCANON KK·Filed 2019·Granted Dec 29, 2020·5 cites·11 claims
- 1793US10859936B2Magnetic carrier, two-component developer, replenishment developer, and image forming methodCANON KK·Filed 2019·Granted Dec 8, 2020·5 cites·9 claims
- 1893US10838317B2Magnetic carrier, two-component developer, replenishing developer, and image forming methodCANON KK·Filed 2019·Granted Nov 17, 2020·5 cites·13 claims
- 1993US6528222B2TonerCANON KK·Filed 2001·Granted Mar 4, 2003·49 cites·57 claims
- 2091US7297455B2Toner, and image forming methodCANON KK·Filed 2004·Granted Nov 20, 2007·40 cites·15 claims
- 2191US7144668B2Toner and two-component developerCANON KK·Filed 2004·Granted Dec 5, 2006·37 cites·17 claims
- 2290US11698594B2TonerCANON KK·Filed 2021·Granted Jul 11, 2023·2 cites·6 claims
- 2390US7272348B2Developing method using a developer with a specified degree of compression and shearing stressCANON KK·Filed 2005·Granted Sep 18, 2007·12 cites·7 claims
- 2490US7138213B2Cyan toner and method for forming an imageCANON KK·Filed 2004·Granted Nov 21, 2006·34 cites·21 claims
- 2590US6929894B2Toner and fixing methodCANON KK·Filed 2002·Granted Aug 16, 2005·37 cites·8 claims
- 2689US6326114B1Toner, and process for producing a tonerCANON KK·Filed 2000·Granted Dec 4, 2001·33 cites·41 claims
- 2788US7320850B2Magenta tonerCANON KK·Filed 2004·Granted Jan 22, 2008·25 cites·14 claims
- 2883US7983581B2Fixing method and fixing device with specified temperature relationships for recording mediumCANON KK·Filed 2005·Granted Jul 19, 2011·7 cites·4 claims
- 2979US7022449B2Black toner with defined loss tangentCANON KK·Filed 2003·Granted Apr 4, 2006·15 cites·2 claims
- 3077US12429791B2TonerCANON KK·Filed 2024·Granted Sep 30, 2025·0 cites·3 claims
- 3166US12386282B2Magnetic carrier, two-component developer, and developer for replenishmentCANON KK·Filed 2022·Granted Aug 12, 2025·0 cites·10 claims
- 3265US10852653B2Magnetic carrier, two-component developer, developer for replenishment, and image forming methodCANON KK·Filed 2019·Granted Dec 1, 2020·0 cites·11 claims
- 3364US2022050398A1TonerCANON KK·Filed 2021·Application pending·0 cites
- 3463US12099326B2TonerCANON KK·Filed 2021·Granted Sep 24, 2024·0 cites·9 claims
- 3556US7381515B2Image forming method and image forming apparatusCANON KK·Filed 2005·Granted Jun 3, 2008·1 cites·4 claims
- 3651US9341973B2Magnetic carrier, two-component developer, developer for replenishment, and image forming methodCANON KK·Filed 2014·Granted May 17, 2016·0 cites·9 claims
- 3751US2024329551A1Toner and two-component developerCANON KK·Filed 2024·Application pending·0 cites
- 3851US2024337960A1Toner and two-component developerCANON KK·Filed 2024·Application pending·0 cites
- 3949US2008026313A1Image forming apparatus and image forming methodCANON KK·Filed 2007·Application pending·0 cites
- 4048US9541853B2Magnetic carrier, two-component developer, replenishing developer, and image forming methodCANON KK·Filed 2014·Granted Jan 10, 2017·0 cites·8 claims
- 4148US2024231249A1TonerCANON KK·Filed 2023·Application pending·0 cites
- 4246US12429793B2Magnetic carrier and two-component developerCANON KK·Filed 2022·Granted Sep 30, 2025·0 cites·7 claims
- 4346US2023341790A1Toner and two-component developerCANON KK·Filed 2023·Application pending·0 cites
- 4446US2023305415A1Toner and method of producing tonerCANON KK·Filed 2023·Application pending·0 cites
- 4544US9513571B2Magnetic carrier, two-component developer, developer for replenishment, and image forming methodCANON KK·Filed 2014·Granted Dec 6, 2016·0 cites·11 claims
- 4641US2021302853A1TonerCANON KK·Filed 2021·Application pending·0 cites
- 4739US2005106489A1Image forming apparatus and image forming methodCANON KK·Filed 2004·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →