Inventor · disambiguated record
Hiroaki Utagawa
Also filed as: UTAGAWA HIROAKI
7 granted patents·1 pending application·29 citations·filing 2011–2020
81Inventor score
Top patents by PatentIndex Score
8 records- 0191US8743431B2Sheet conveying device, image reading device, and image forming deviceHAYASAKA KENJI·Filed 2013·Granted Jun 3, 2014·10 cites·7 claims
- 0283US9075376B2Automatic document feeder and image forming apparatus including the sameUTAGAWA HIROAKI·Filed 2013·Granted Jul 7, 2015·4 cites·8 claims
- 0383US8925913B2Sheet conveying device, image reading device, and image forming apparatusKUBO HIROSHI·Filed 2013·Granted Jan 6, 2015·5 cites·24 claims
- 0482US8141865B2Sheet feeding device and image forming apparatus with different separating and suctioning operational timingsUTAGAWA HIROAKI·Filed 2011·Granted Mar 27, 2012·6 cites·13 claims
- 0569US8896891B2Document conveying device, image reading device, and image forming apparatusHEISHI FUMIYUKI·Filed 2013·Granted Nov 25, 2014·2 cites·11 claims
- 0666US9487370B2Sheet material conveying device, image scanning device, and image forming apparatusUTAGAWA HIROAKI·Filed 2014·Granted Nov 8, 2016·2 cites·8 claims
- 0750US11360421B2Sheet sorting device, post-processing apparatus, and image forming systemFUJITA MASAKAZU·Filed 2020·Granted Jun 14, 2022·0 cites·19 claims
- 0839US2014140744A1Automatic document feeder, image scanning device, and image forming apparatusAKAI TAKESHI·Filed 2013·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →