Inventor · disambiguated record
Hirofumi Kumoi
Also filed as: KUMOI HIROFUMI
9 granted patents·4 pending applications·84 citations·filing 2006–2016
85Inventor score
Files withCANON KK13
Top patents by PatentIndex Score
13 records- 0197US9274442B2Electrophotographic image forming apparatus having charge transport layer with matrix-domain structure and charging member having concavity and protrusionCANON KK·Filed 2015·Granted Mar 1, 2016·31 cites·14 claims
- 0295US9164406B2Electrophotographic photosensitive member, process cartridge and electrophotographic apparatusCANON KK·Filed 2014·Granted Oct 20, 2015·19 cites·10 claims
- 0395US7732113B2Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and process for producing electrophotographic photosensitive memberCANON KK·Filed 2006·Granted Jun 8, 2010·28 cites·19 claims
- 0486US9753385B2Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2016·Granted Sep 5, 2017·3 cites·8 claims
- 0581US9864284B2Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2016·Granted Jan 9, 2018·2 cites·7 claims
- 0676US9921499B2Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and phthalocyanine pigmentCANON KK·Filed 2016·Granted Mar 20, 2018·1 cites·8 claims
- 0743US9229342B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Granted Jan 5, 2016·0 cites·9 claims
- 0837US9665020B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2015·Granted May 30, 2017·0 cites·14 claims
- 0935US9778581B2Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2015·Granted Oct 3, 2017·0 cites·12 claims
- 1035US2016252832A1Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus, and mixed crystal of hydroxygallium phthalocyanine and chlorogallium phthalocyanine and method of producing the crystalline complexCANON KK·Filed 2016·Application pending·0 cites
- 1135US2016252833A1Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2016·Application pending·0 cites
- 1234US2016154328A1Electrophotographic photosensitive member, process cartridge and electrophotographic apparatusCANON KK·Filed 2015·Application pending·0 cites
- 1334US2016154326A1Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge and electrophotographic apparatusCANON KK·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →