Inventor · disambiguated record
Hirohisa Nakajima
Also filed as: NAKAJIMA HIROHISA
16 granted patents·1 pending application·24 citations·filing 2001–2022
89Inventor score
Top patents by PatentIndex Score
17 records- 0189US9557705B2Image forming apparatus including determination of amount of waste tonerCANON KK·Filed 2016·Granted Jan 31, 2017·4 cites·19 claims
- 0287US9467586B2Image forming apparatusCANON KK·Filed 2015·Granted Oct 11, 2016·5 cites·11 claims
- 0386US10025218B2Image forming apparatus including high voltage generating circuitCANON KK·Filed 2017·Granted Jul 17, 2018·3 cites·20 claims
- 0481US9835970B2Image forming apparatus with pre-exposure memberCANON KK·Filed 2016·Granted Dec 5, 2017·2 cites·11 claims
- 0577US10890855B2Power supply apparatus and image forming apparatus for determining malfunction or load abnormalityCANON KK·Filed 2019·Granted Jan 12, 2021·2 cites·15 claims
- 0676US10747158B2Distinction of causes of errors in image forming apparatusCANON KK·Filed 2019·Granted Aug 18, 2020·1 cites·13 claims
- 0774US9525795B2Image forming apparatus with rotary polygon mirror speed controlCANON KK·Filed 2015·Granted Dec 20, 2016·2 cites·18 claims
- 0873US9650220B2Sheet feeding apparatus and image forming apparatusCANON KK·Filed 2015·Granted May 16, 2017·2 cites·23 claims
- 0971US9910407B2Image forming apparatus and image forming systemCANON KK·Filed 2015·Granted Mar 6, 2018·1 cites·20 claims
- 1071US9507310B2Image forming apparatus having circuit board with silk-printed mark for holding clawCANON KK·Filed 2015·Granted Nov 29, 2016·1 cites·18 claims
- 1169US10038803B2Image forming apparatusCANON KK·Filed 2016·Granted Jul 31, 2018·1 cites·15 claims
- 1249US10656666B2Bias output apparatus including a plurality of voltage output circuits, and image forming apparatusCANON KK·Filed 2019·Granted May 19, 2020·0 cites·13 claims
- 1349US9523945B2Image forming apparatus that forms image on image carrierCANON KK·Filed 2016·Granted Dec 20, 2016·0 cites·15 claims
- 1447US11675286B2Image forming apparatus configured to determine abnormality of drum unit earth terminalCANON KK·Filed 2022·Granted Jun 13, 2023·0 cites·6 claims
- 1542US10031436B2High voltage generation apparatus and image forming apparatusCANON KK·Filed 2017·Granted Jul 24, 2018·0 cites·14 claims
- 1639US9804528B2Image forming apparatus that cleans detection surface of sensor for detecting developer accommodated in containing unitCANON KK·Filed 2016·Granted Oct 31, 2017·0 cites·6 claims
- 1736US2002128144A1Filler sand for a ladle tap hole valveNIPPON KOKAN KK·Filed 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →