Inventor · disambiguated record
Kazuaki Nagaoka
Also filed as: NAGAOKA KAZUAKI
23 granted patents·5 pending applications·197 citations·filing 2006–2025
95Inventor score
Top patents by PatentIndex Score
28 records- 0197US11841629B2Developing roller, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2022·Granted Dec 12, 2023·4 cites·12 claims
- 0297US7797833B2Developing roller and method of producing the roller, process cartridge, and electrophotographic image-forming apparatusCANON KK·Filed 2009·Granted Sep 21, 2010·44 cites·5 claims
- 0395US10942471B2Electrophotographic member having a surface layer with a cross-linked urethane resin-containing matrix, process cartridge, and apparatusCANON KK·Filed 2020·Granted Mar 9, 2021·8 cites·12 claims
- 0495US10678161B2Electrophotographic member having elastic layer with elastic modulus of 0.5 to 3.0 MPA and coating layer with elastic modulus of 5.0 to 100 MPACANON KK·Filed 2019·Granted Jun 9, 2020·10 cites·16 claims
- 0595US9625854B2Developer carrying member, electrophotographic process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2015·Granted Apr 18, 2017·26 cites·5 claims
- 0695US8745870B2Regenerated elastic roller manufacturing process, regenerated elastic roller, electropohotographic process cartridge, and electropohotographic image forming apparatusKAWAMURA KUNIMASA·Filed 2012·Granted Jun 10, 2014·14 cites·3 claims
- 0794US10571825B1Electrophotographic member, electrophotographic process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted Feb 25, 2020·7 cites·14 claims
- 0894US9846407B2Developing member, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2016·Granted Dec 19, 2017·15 cites·9 claims
- 0993US10712684B2Developing roller, electrophotographic process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted Jul 14, 2020·5 cites·15 claims
- 1093US7727134B2Developing roller, process for its production, developing assembly and image forming apparatusCANON KABUSHIKI TOKYO·Filed 2006·Granted Jun 1, 2010·30 cites·13 claims
- 1192US11650516B2Developing apparatus, electrophotography process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2022·Granted May 16, 2023·2 cites·12 claims
- 1291US10705449B2Developing member, electrophotographic process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted Jul 7, 2020·4 cites·8 claims
- 1391US8176632B2Regenerated elastic roller manufacturing process, regenerated elastic roller, electrophotographic process cartridge, and electrophotographic image forming apparatusKAWAMURA KUNIMASA·Filed 2008·Granted May 15, 2012·11 cites·3 claims
- 1490US10831127B2Developing member, electrophotographic process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted Nov 10, 2020·4 cites·10 claims
- 1589US10831126B2Developing roller having crown-shaped electro-conductive layer with outer surface providing electrically insulating first regions adjacent to second regions having higher conductivityCANON KK·Filed 2019·Granted Nov 10, 2020·4 cites·12 claims
- 1689US7881646B2Developing roller and manufacturing method thereof, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2010·Granted Feb 1, 2011·6 cites·6 claims
- 1785US11465383B2Electrophotographic member, electrophotographic process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted Oct 11, 2022·2 cites·10 claims
- 1877US12164242B2Developing roller, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2023·Granted Dec 10, 2024·0 cites·13 claims
- 1971US2025244694A1Developing roller, developing cartridge, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 2069US2025244712A1Process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 2167US9164416B2Conductive member, electrophotographic process cartridge, and electrophotographic apparatusNAKAMURA MINORU·Filed 2012·Granted Oct 20, 2015·1 cites·5 claims
- 2263US11520249B2Electrophotographic member, electrophotographic process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2022·Granted Dec 6, 2022·0 cites·9 claims
- 2363US2025362627A1Electrophotographic conductive roller, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 2456US12366816B2Electrophotographic member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2023·Granted Jul 22, 2025·0 cites·12 claims
- 2556US2025244693A1Electrophotographic roller, process cartridge, electrophotographic image forming apparatus, and method for manufacturing electrophotographic rollerCANON KK·Filed 2025·Application pending·0 cites
- 2655US10895823B2Developing roller, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2020·Granted Jan 19, 2021·0 cites·7 claims
- 2745US12158724B2Electrophotographic member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2022·Granted Dec 3, 2024·0 cites·14 claims
- 2836US2017139336A1Developing member, method of producing the same, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →