Inventor · disambiguated record
Yuhei Oikawa
Also filed as: OIKAWA YUHEI
35 granted patents·9 pending applications·96 citations·filing 2006–2025
95Inventor score
Technology areasB41J
Top patents by PatentIndex Score
44 records- 0197US8919904B2Inkjet recording apparatusCANON KK·Filed 2013·Granted Dec 30, 2014·22 cites·6 claims
- 0295US9415588B1Ink-jet printing apparatus and ink-jet printing methodCANON KK·Filed 2016·Granted Aug 16, 2016·7 cites·16 claims
- 0394US9114607B2Inkjet printing apparatus and driving methodCANON KK·Filed 2013·Granted Aug 25, 2015·10 cites·16 claims
- 0492US11298937B2Printing apparatus and control method thereforCANON KK·Filed 2020·Granted Apr 12, 2022·2 cites·20 claims
- 0592US8950843B2Printing apparatus and printing methodOIKAWA YUHEI·Filed 2010·Granted Feb 10, 2015·15 cites·6 claims
- 0690US11919318B2Inkjet printing apparatus and inkjet printing methodCANON KK·Filed 2021·Granted Mar 5, 2024·1 cites·45 claims
- 0789US8628163B2Ink jet printing apparatus and printing methodKANEMATSU DAIGORO·Filed 2009·Granted Jan 14, 2014·12 cites·9 claims
- 0888US10766251B2Printing apparatus and discharge status judgment methodCANON KK·Filed 2019·Granted Sep 8, 2020·2 cites·20 claims
- 0987US7503638B2Ink jet printing apparatus, and device and method for recovering ejection performance of ink printing apparatusCANON KK·Filed 2006·Granted Mar 17, 2009·9 cites·10 claims
- 1086US9656465B2Ink jet printing apparatus and ink jet printing methodCANON KK·Filed 2016·Granted May 23, 2017·2 cites·32 claims
- 1185US2024165960A1Inkjet printing apparatus and inkjet printing methodCANON KK·Filed 2024·Application pending·0 cites
- 1283US9259921B2Ink jet printing apparatus, ink jet printing method, and non-transitory computer-readable storage mediumCANON KK·Filed 2015·Granted Feb 16, 2016·2 cites·14 claims
- 1382US8967768B2Inkjet printing apparatus and inkjet printing methodCANON KK·Filed 2012·Granted Mar 3, 2015·3 cites·10 claims
- 1478US11691415B2Printing apparatus and control method thereforCANON KK·Filed 2022·Granted Jul 4, 2023·0 cites·20 claims
- 1578US11097535B2Printing apparatus and discharge status judgment methodCANON KK·Filed 2019·Granted Aug 24, 2021·1 cites·24 claims
- 1677US8317287B2Inkjet printing apparatus and inkjet printing methodJOGO JUMPEI·Filed 2010·Granted Nov 27, 2012·3 cites·6 claims
- 1775US11820136B2Printing apparatus and method of controlling sameCANON KK·Filed 2021·Granted Nov 21, 2023·0 cites·35 claims
- 1875US2025289244A1Printing apparatus, method for controlling printing apparatus, and storage mediumCANON KK·Filed 2025·Application pending·0 cites
- 1974US8783811B2Printing apparatusNITTA MASAKI·Filed 2012·Granted Jul 22, 2014·2 cites·11 claims
- 2073US11141990B2Inkjet printing apparatus and inkjet printing methodCANON KK·Filed 2019·Granted Oct 12, 2021·0 cites·28 claims
- 2169US11351774B2Printing apparatus and discharge status judgment methodCANON KK·Filed 2020·Granted Jun 7, 2022·0 cites·23 claims
- 2269US11192357B2Printing apparatus and method of controlling sameCANON KK·Filed 2019·Granted Dec 7, 2021·0 cites·27 claims
- 2366US9180660B2Ink jet recording apparatusCANON KK·Filed 2012·Granted Nov 10, 2015·1 cites·25 claims
- 2464US9010903B2Ink jet printing apparatus and ink jet printing methodYOKOZAWA TAKU·Filed 2008·Granted Apr 21, 2015·2 cites·39 claims
- 2560US10022961B2Ink jet printing apparatus and ink jet printing methodCANON KK·Filed 2017·Granted Jul 17, 2018·0 cites·17 claims
- 2660US2025170821A1Recording apparatus, method for controlling recording apparatus, and storage mediumCANON KK·Filed 2024·Application pending·0 cites
- 2760US2025196492A1Recording device and control method thereofCANON KK·Filed 2024·Application pending·0 cites
- 2859US2025074053A1Printing apparatus, information processing method, and storage mediumCANON KK·Filed 2024·Application pending·0 cites
- 2957US2024278569A1Printing apparatus and control method for printing apparatusCANON KK·Filed 2024·Application pending·0 cites
- 3056US11440316B2Recording apparatus and determination methodCANON KK·Filed 2021·Granted Sep 13, 2022·0 cites·13 claims
- 3155US10875297B2Image forming apparatus and control method thereforCANON KK·Filed 2019·Granted Dec 29, 2020·0 cites·15 claims
- 3255US2024217233A1Liquid ejection headCANON KK·Filed 2023·Application pending·0 cites
- 3354US9050794B2Printing apparatus and printing methodCANON KK·Filed 2014·Granted Jun 9, 2015·0 cites·10 claims
- 3450US10836155B2Ink jet printing apparatus, control method thereof and storage mediumCANON KK·Filed 2019·Granted Nov 17, 2020·0 cites·12 claims
- 3547US8851613B2Printing apparatus and printing methodYOKOZAWA TAKU·Filed 2012·Granted Oct 7, 2014·0 cites·11 claims
- 3643US10308044B2Recording apparatus and recording methodCANON KK·Filed 2018·Granted Jun 4, 2019·0 cites·16 claims
- 3743US8608268B2Recording apparatusNITTA MASAKI·Filed 2011·Granted Dec 17, 2013·0 cites·18 claims
- 3843US2009021548A1Inkjet printing apparatus and method for performing maintenance on inkjet printing apparatusCANON KK·Filed 2008·Application pending·0 cites
- 3940US9738069B2Inkjet printing apparatus and inkjet printing methodCANON KK·Filed 2016·Granted Aug 22, 2017·0 cites·12 claims
- 4039US9315058B2Image recording apparatus, image recording method, and non-transitory computer-readable storage mediumCANON KK·Filed 2015·Granted Apr 19, 2016·0 cites·22 claims
- 4138US9873247B2Ink jet printing apparatus and ink jet printing methodCANON KK·Filed 2016·Granted Jan 23, 2018·0 cites·18 claims
- 4237US9895894B2Ink jet printing apparatus and ink jet printing methodCANON KK·Filed 2016·Granted Feb 20, 2018·0 cites·10 claims
- 4337US9855743B2Inkjet recording apparatus and inkjet recording methodCANON KK·Filed 2016·Granted Jan 2, 2018·0 cites·20 claims
- 4433US2011057973A1Ink jet printing apparatus and ink jet printing methodCANON KK·Filed 2010·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Yuhei Oikawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →