Inventor · disambiguated record
Yusuke Ishizuka
Also filed as: ISHIZUKA YUSUKE
21 granted patents·4 pending applications·14 citations·filing 2013–2025
89Inventor score
Top patents by PatentIndex Score
25 records- 0186US9201378B2Cleaning unit, process cartridge incorporating same, and image forming apparatus incorporating sameASAOKA AKIRA·Filed 2014·Granted Dec 1, 2015·4 cites·19 claims
- 0282US9696648B2Image forming apparatusMAEHATA YASUHIRO·Filed 2016·Granted Jul 4, 2017·2 cites·10 claims
- 0380US9395686B2Process cartridge and image forming apparatusSHINTANI TAKESHI·Filed 2015·Granted Jul 19, 2016·2 cites·20 claims
- 0480US9367021B2Image forming apparatusISHIZUKA YUSUKE·Filed 2015·Granted Jun 14, 2016·2 cites·20 claims
- 0577US9158267B2Waste-toner conveyance device and image forming apparatusRICOH CO LTD·Filed 2014·Granted Oct 13, 2015·2 cites·8 claims
- 0674US9798288B2Image forming apparatus which controls the rotation speed of a lubricant supply rollerMAEHATA YASUHIRO·Filed 2016·Granted Oct 24, 2017·1 cites·19 claims
- 0769US12510859B2Image forming apparatus and coating-film adjusting methodKIMURA HIDEKI·Filed 2024·Granted Dec 30, 2025·0 cites·6 claims
- 0869US9383715B2Lubricant supplying device, process cartridge and image forming apparatusHONJOH KENJI·Filed 2015·Granted Jul 5, 2016·1 cites·20 claims
- 0962US2025383620A1Protective layer forming device and image forming apparatusOHMORI MASAHIRO·Filed 2025·Application pending·0 cites
- 1058US12111600B2Powder conveying device and image forming apparatus incorporating sameSHIMADA KAZUHIRO·Filed 2023·Granted Oct 8, 2024·0 cites·20 claims
- 1158US11474445B2Cleaning device for cleaning a discharge wire, charger, and image forming apparatusISHIZUKA YUSUKE·Filed 2021·Granted Oct 18, 2022·0 cites·16 claims
- 1255US9141020B2Charger positioning adjuster and image forming apparatus incorporating sameUENISHI HIROYUKI·Filed 2014·Granted Sep 22, 2015·0 cites·13 claims
- 1354US10935907B2Developer conveyance device and image forming apparatus incorporating sameISHIZUKA YUSUKE·Filed 2020·Granted Mar 2, 2021·0 cites·20 claims
- 1453US12504091B2Electric valve control device and electric valve deviceFUJIKOKI CORP·Filed 2022·Granted Dec 23, 2025·0 cites·9 claims
- 1553US12449057B2Electric valve control device, electric valve device, and method for controlling electric valveFUJIKOKI CORP·Filed 2023·Granted Oct 21, 2025·0 cites·7 claims
- 1653US12416894B2Image forming apparatusGOTO YUTAKA·Filed 2023·Granted Sep 16, 2025·0 cites·13 claims
- 1753US11789385B2Transfer bias and pressure in an image forming apparatusAOKI YUUKI·Filed 2022·Granted Oct 17, 2023·0 cites·20 claims
- 1852US2024280185A1Control apparatus of electrically driven valve, electrically driven valve, and electrically driven valve unit using the sameFUJIKOKI CORP·Filed 2023·Application pending·0 cites
- 1948US9268292B2Image forming apparatus including first and second bias voltage supply devicesKOJIMA TAKESHI·Filed 2013·Granted Feb 23, 2016·0 cites·19 claims
- 2047US11307515B2Developing device with a developer regulator and a stopperRICOH CO LTD·Filed 2020·Granted Apr 19, 2022·0 cites·14 claims
- 2146US9983512B2Toner conveyance device and image forming apparatusISHIZUKA YUSUKE·Filed 2017·Granted May 29, 2018·0 cites·20 claims
- 2246US9958823B2Device including roller, and image forming apparatus and process cartridge incorporating sameTOMITA DAISUKE·Filed 2016·Granted May 1, 2018·0 cites·20 claims
- 2346US2023103454A1Transfer device and image forming apparatusKIKUCHI HIROSHI·Filed 2022·Application pending·0 cites
- 2443US9195204B2Image forming apparatusISHIZUKA YUSUKE·Filed 2014·Granted Nov 24, 2015·0 cites·18 claims
- 2536US2020233365A1Cleaning device, process cartridge, and image forming apparatusKIMURA HIDEKI·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →