Inventor · disambiguated record
Yuka Ishiduka
Also filed as: ISHIDUKA YUKA
50 granted patents·12 pending applications·822 citations·filing 2003–2025
98Inventor score
Top patents by PatentIndex Score
62 records- 0199US11392050B2Process cartridge and electrophotographic apparatusCANON KK·Filed 2020·Granted Jul 19, 2022·14 cites·8 claims
- 0299US11366402B2Process cartridge and electrophotographic apparatus using the sameCANON KK·Filed 2020·Granted Jun 21, 2022·18 cites·12 claims
- 0399US11256186B2Electrophotographic photosensitive member, process cartridge and electrophotographic apparatusCANON KK·Filed 2020·Granted Feb 22, 2022·11 cites·8 claims
- 0499US9069267B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Granted Jun 30, 2015·58 cites·8 claims
- 0599US9063505B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Granted Jun 23, 2015·56 cites·9 claims
- 0699US9029054B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Granted May 12, 2015·57 cites·8 claims
- 0798US11003102B2Electrophotographic image forming apparatus and process cartridgeCANON KK·Filed 2020·Granted May 11, 2021·13 cites·14 claims
- 0898US10558133B2Electrophotographic photosensitive member, process cartridge and electrophotographic apparatusCANON KK·Filed 2019·Granted Feb 11, 2020·29 cites·11 claims
- 0998US10558132B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2019·Granted Feb 11, 2020·35 cites·5 claims
- 1098US9304416B2Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2014·Granted Apr 5, 2016·29 cites·10 claims
- 1198US8088541B2Polyvinyl acetal resin, electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusTANAKA MASATO·Filed 2006·Granted Jan 3, 2012·52 cites·7 claims
- 1297US11392074B2Electrophotographic photosensitive member having outer surface with first and second structure groups, the first structure group having a smaller appearance period and a lower height than the second structure groupCANON KK·Filed 2021·Granted Jul 19, 2022·7 cites·7 claims
- 1397US10831118B2Electrophotographic photosensitive member and method for producing electrophotographic photosensitive memberCANON KK·Filed 2019·Granted Nov 10, 2020·18 cites·7 claims
- 1497US10747131B2Electrophotographic photosensitive member and method for manufacturing the same as well as process cartridge and electrophotographic image-forming apparatusCANON KK·Filed 2019·Granted Aug 18, 2020·15 cites·7 claims
- 1597US10691033B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2019·Granted Jun 23, 2020·15 cites·9 claims
- 1697US10539892B2Electrophotographic photosensitive member, process cartridge, and electrophotographic image-forming apparatusCANON KK·Filed 2019·Granted Jan 21, 2020·18 cites·10 claims
- 1797US9726992B2Electrophotographic photosensitive member, manufacturing method of electrophotographic photosensitive member, process cartridge and electrophotographic apparatusCANON KK·Filed 2016·Granted Aug 8, 2017·33 cites·12 claims
- 1897US9684277B2Process cartridge and image-forming methodCANON KK·Filed 2015·Granted Jun 20, 2017·19 cites·20 claims
- 1997US9599917B2Electrophotographic photosensitive member, process cartridge and electrophotographic apparatusCANON KK·Filed 2015·Granted Mar 21, 2017·34 cites·6 claims
- 2097US8481236B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusTANAKA MASATO·Filed 2010·Granted Jul 9, 2013·23 cites·7 claims
- 2197US7910274B2Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2009·Granted Mar 22, 2011·57 cites·17 claims
- 2296US10838315B2Electrophotographic photosensitive member, process cartridge and electrophotographic apparatusCANON KK·Filed 2019·Granted Nov 17, 2020·13 cites·7 claims
- 2396US10747130B2Process cartridge and electrophotographic apparatusCANON KK·Filed 2019·Granted Aug 18, 2020·16 cites·16 claims
- 2496US10642177B2Process cartridge and image-forming apparatusCANON KK·Filed 2019·Granted May 5, 2020·14 cites·16 claims
- 2596US8865381B2Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusTANAKA MASATO·Filed 2010·Granted Oct 21, 2014·18 cites·11 claims
- 2694US6994941B2Electrophotographic photosensitive member, process cartridge and electrophotographic apparatusCANON KK·Filed 2003·Granted Feb 7, 2006·46 cites·25 claims
- 2793US7001699B2Electrophotographic photosensitive member, process cartridge and electrophotographic apparatusCANON KK·Filed 2003·Granted Feb 21, 2006·45 cites·16 claims
- 2893US6991881B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2003·Granted Jan 31, 2006·45 cites·13 claims
- 2991US11782353B2Method for producing electrophotographic photosensitive memberCANON KK·Filed 2021·Granted Oct 10, 2023·2 cites·8 claims
- 3086US8940465B2Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and imide compoundCANON KK·Filed 2013·Granted Jan 27, 2015·4 cites·12 claims
- 3185US9494880B2Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Granted Nov 15, 2016·3 cites·18 claims
- 3280US10656542B2Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and method for producing electrophotographic photosensitive memberCANON KK·Filed 2019·Granted May 19, 2020·1 cites·9 claims
- 3376US2025306484A1Electrophotographic apparatus and process cartridgeCANON KK·Filed 2025·Application pending·0 cites
- 3469US9778582B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus incorporating an improved undercoat layerCANON KK·Filed 2012·Granted Oct 3, 2017·1 cites·7 claims
- 3567US8993205B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Granted Mar 31, 2015·1 cites·8 claims
- 3663US8512922B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusISHIDUKA YUKA·Filed 2010·Granted Aug 20, 2013·1 cites·7 claims
- 3758US2014004456A1Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Application pending·0 cites
- 3856US9804512B2Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2014·Granted Oct 31, 2017·0 cites·11 claims
- 3956US9383663B2Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Granted Jul 5, 2016·0 cites·15 claims
- 4055US9557664B2Electrophotographic photosensitive member, method for manufacturing the same, process cartridge, and electrophotographic apparatusCANON KK·Filed 2014·Granted Jan 31, 2017·0 cites·14 claims
- 4155US7009080B2Process for producing halogenated aromatic amine compoundCANON KK·Filed 2003·Granted Mar 7, 2006·1 cites·10 claims
- 4255US2016054666A1Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2015·Application pending·0 cites
- 4354US2015277246A1Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2015·Application pending·0 cites
- 4454US2015277247A1Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2015·Application pending·0 cites
- 4552US9335646B2Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2012·Granted May 10, 2016·0 cites·8 claims
- 4652US2024201609A1Electrophotographic photosensitive member, process cartridge and electrophotographic apparatusCANON KK·Filed 2023·Application pending·0 cites
- 4752US2024201608A1Electrophotographic photosensitive member, process cartridge and electrophotographic apparatusCANON KK·Filed 2023·Application pending·0 cites
- 4852US2024192616A1Process cartridge and electrophotographic apparatusCANON KK·Filed 2023·Application pending·0 cites
- 4951US11703773B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2022·Granted Jul 18, 2023·0 cites·19 claims
- 5049US12045006B2Electrophotographic photosensitive memberCANON KK·Filed 2021·Granted Jul 23, 2024·0 cites·5 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 →