Inventor · disambiguated record
Keisuke Kubota
Also filed as: KUBOTA KEISUKE
45 granted patents·6 pending applications·139 citations·filing 2002–2023
97Inventor score
Files withKUBOTA KEISUKE9HITACHI PRINTING SOLUTIONS LTD6RICOH CO LTD6OKAMOTO MASAMI5HIROSE FUMIHIRO4
Top patents by PatentIndex Score
51 records- 0189US9733600B2Fixing device and image forming apparatusNOZAWA KENJI·Filed 2016·Granted Aug 15, 2017·4 cites·17 claims
- 0288US9244431B2Fixing device and image forming apparatusKIKUSHIMA YUUKI·Filed 2015·Granted Jan 26, 2016·4 cites·20 claims
- 0387US7548718B2Fixing device for fixing an unfixed toner image on a recording medium and image forming apparatus including the fixing deviceRICOH KK·Filed 2007·Granted Jun 16, 2009·9 cites·20 claims
- 0485US9316979B2Fixing device and image forming apparatusNOZAWA KENJI·Filed 2015·Granted Apr 19, 2016·3 cites·19 claims
- 0582US8886097B2Cleaning system control method, fixing device, and image forming apparatus incorporating sameNAGATA ATSUSHI·Filed 2012·Granted Nov 11, 2014·3 cites·19 claims
- 0682US8027627B2Fixing device and image forming apparatus with improved mechanism for stably applying oil for fixingRICOH CO LTD·Filed 2009·Granted Sep 27, 2011·7 cites·7 claims
- 0782US6738586B2Print control method of electrophotograph and image formation apparatus with potential sensor using the methodHITACHI PRINTING SOLUTIONS LTD·Filed 2002·Granted May 18, 2004·20 cites·17 claims
- 0880US9268276B2Fixing device and image forming apparatus that include a separator disposed downstream from a fixing nipHIROSE FUMIHIRO·Filed 2015·Granted Feb 23, 2016·2 cites·18 claims
- 0980US8112022B2Fixing device, image forming apparatus, and image fixing method capable of stably applying oil for fixing without adhering oil to sheetOKAMOTO MASAMI·Filed 2009·Granted Feb 7, 2012·6 cites·19 claims
- 1079US9230729B2Transformer, amorphous transformer and method of manufacturing the transformerHITACHI IND EQUIPMENT SYS·Filed 2015·Granted Jan 5, 2016·2 cites·9 claims
- 1179US6686943B2Control method of an electrophotographic record apparatus and image formation apparatus including controlling developing bias and photoconductor surface potentialHITACHI PRINTING SOLUTIONS LTD·Filed 2002·Granted Feb 3, 2004·17 cites·20 claims
- 1278US6813462B2Electro-photographic developing unitHITACHI PRINTING SOLUTIONS LTD·Filed 2003·Granted Nov 2, 2004·17 cites·19 claims
- 1377US8023850B2Image forming apparatus capable of stably applying oil for fixingRICOH CO LTD·Filed 2009·Granted Sep 20, 2011·5 cites·9 claims
- 1474US8666270B2Image forming apparatusKUBOTA KEISUKE·Filed 2011·Granted Mar 4, 2014·2 cites·20 claims
- 1570US9389560B2Fixing device including a separator to separate a recording medium from a pressure rotator and image forming apparatus including the fixing deviceHIROSE FUMIHIRO·Filed 2015·Granted Jul 12, 2016·1 cites·20 claims
- 1669US7324778B2Fixing device including heating roller and pressure rollerRICOH PRINTING SYS LTD·Filed 2005·Granted Jan 29, 2008·3 cites·6 claims
- 1768US7945198B2Fixing device and image forming apparatus comprising sameRICOH CO LTD·Filed 2007·Granted May 17, 2011·3 cites·20 claims
- 1867US6684036B2Image forming apparatusHITACHI KOKI KK·Filed 2002·Granted Jan 27, 2004·10 cites·21 claims
- 1964US8740288B2CabKAMIMAE TAKESHI·Filed 2012·Granted Jun 3, 2014·5 cites·4 claims
- 2063US6760553B2Electrophotographic cluster printing system with controlled image qualityHITACHI PRINTING SOLUTIONS LTD·Filed 2002·Granted Jul 6, 2004·8 cites·18 claims
- 2162US12321112B2Fixing device and image forming apparatus incorporating the sameKUBOTA KEISUKE·Filed 2023·Granted Jun 3, 2025·0 cites·8 claims
- 2260US12001236B2Work vehicle and method for controlling work vehicleKOMATSU MFG CO LTD·Filed 2020·Granted Jun 4, 2024·0 cites·10 claims
- 2359US12139884B2Work vehicle, lever unit, and actuator automatic control methodKOMATSU MFG CO LTD·Filed 2020·Granted Nov 12, 2024·0 cites·20 claims
- 2459US9519249B2Fixing device and image forming apparatusHIROSE FUMIHIRO·Filed 2015·Granted Dec 13, 2016·0 cites·20 claims
- 2556US2024074213A1Memory deviceKIOXIA CORP·Filed 2023·Application pending·0 cites
- 2655US10481530B2Separation member, separation device, fixing device, and image forming apparatusRICOH CO LTD·Filed 2018·Granted Nov 19, 2019·0 cites·15 claims
- 2755US10394169B2Fixing device and image forming apparatusRICOH CO LTD·Filed 2017·Granted Aug 27, 2019·0 cites·21 claims
- 2854US9996035B2Fixing device and image forming apparatus with a movable presser which moves a fixing beltOKAMOTO MASAMI·Filed 2017·Granted Jun 12, 2018·0 cites·20 claims
- 2954US2016170348A1Fixing device and image forming apparatusHIROSE FUMIHIRO·Filed 2015·Application pending·0 cites
- 3053US7106983B2Color image forming apparatusRICOH PRINTING SYS LTD·Filed 2004·Granted Sep 12, 2006·5 cites·2 claims
- 3151US10012937B2Fixing device and image forming apparatus including a fixing belt, a presser, and a gap retainerYUASA SHUUTAROH·Filed 2017·Granted Jul 3, 2018·0 cites·20 claims
- 3250US9563155B2Cooling device and image forming apparatus incorporating the cooling deviceISHII KENJI·Filed 2015·Granted Feb 7, 2017·0 cites·19 claims
- 3350US8897685B2Cleaning system, fixing device, and image forming apparatus incorporating sameKUBOTA KEISUKE·Filed 2012·Granted Nov 25, 2014·0 cites·17 claims
- 3450US2022333342A1Work machine and control method for work machineKOMATSU MFG CO LTD·Filed 2020·Application pending·0 cites
- 3549US10088786B2Fixing device and image forming apparatusKUBOTA KEISUKE·Filed 2017·Granted Oct 2, 2018·0 cites·20 claims
- 3649US9207601B2Control method, fixing device and image forming apparatus incorporating sameKUBOTA KEISUKE·Filed 2013·Granted Dec 8, 2015·0 cites·8 claims
- 3748US9000877B2Transformer, amorphous transformer and method of manufacturing the transformerKUBOTA KEISUKE·Filed 2012·Granted Apr 7, 2015·0 cites·1 claims
- 3846US8725019B2Fixing device, fixing device control method, and image forming apparatusKUBOTA KEISUKE·Filed 2011·Granted May 13, 2014·0 cites·19 claims
- 3946US8346143B2Fixing device and image forming apparatus capable of effectively circulating and applying oil for fixingRICOH CO LTD·Filed 2009·Granted Jan 1, 2013·0 cites·17 claims
- 4046US8224220B2Fixing device and image forming apparatus capable of adjusting amount of oil applied for fixingOKAMOTO MASAMI·Filed 2009·Granted Jul 17, 2012·0 cites·20 claims
- 4146US6829449B2Image forming apparatus with transfer bias inverting functionHITACHI PRINTING SOLUTIONS LTD·Filed 2003·Granted Dec 7, 2004·3 cites·2 claims
- 4245US9601255B2Amorphous core transformerKUBOTA KEISUKE·Filed 2012·Granted Mar 21, 2017·0 cites·4 claims
- 4342US10095166B2Fixing device and image forming apparatusOKAMOTO MASAMI·Filed 2017·Granted Oct 9, 2018·0 cites·17 claims
- 4442US10012936B2Fixing device and image forming apparatusYAMAJI KENSUKE·Filed 2017·Granted Jul 3, 2018·0 cites·13 claims
- 4542US8699904B2Fixing device and image forming apparatus capable of suppressing variation image densityOKAMOTO MASAMI·Filed 2009·Granted Apr 15, 2014·0 cites·11 claims
- 4638US9939761B2Fixing device and image forming apparatus that include a separation aid disposed downstream from the fixing nipNOZAWA KENJI·Filed 2015·Granted Apr 10, 2018·0 cites·18 claims
- 4738US2008170896A1Release-promoting agent, fixing device, and image forming apparatusKUBOTA KEISUKE·Filed 2006·Application pending·0 cites
- 4837US9811034B2Image forming apparatus, image forming method, and recording medium storing image forming programKAWABE HIROSHI·Filed 2016·Granted Nov 7, 2017·0 cites·6 claims
- 4935US2016209789A1Sheet separation device, fixing device, and image forming apparatusNOZAWA KENJI·Filed 2016·Application pending·0 cites
- 5034US6792235B2Electrophotographic apparatus including transferring deviceHITACHI PRINTING SOLUTIONS LTD·Filed 2002·Granted Sep 14, 2004·0 cites·27 claims
Showing the top 50 of 51 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Keisuke Kubota 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 →