Inventor · disambiguated record
Katsuyuki Kitajima
Also filed as: KITAJIMA KATSUYUKI
34 granted patents·6 pending applications·17 citations·filing 2009–2024
93Inventor score
Files withFUJI XEROX CO LTD28FUJIFILM BUSINESS INNOVATION CORP4KITAJIMA KATSUYUKI3SAITO YUTAKA3FUKUSHIMA NORIHITO1
Top patents by PatentIndex Score
40 records- 0189US9367001B1Image forming apparatus and image forming methodFUJI XEROX CO LTD·Filed 2015·Granted Jun 14, 2016·5 cites·11 claims
- 0286US9354558B1Image forming apparatus and image forming methodFUJI XEROX CO LTD·Filed 2015·Granted May 31, 2016·3 cites·12 claims
- 0381US9529291B2Image forming apparatus and image forming methodFUJI XEROX CO LTD·Filed 2015·Granted Dec 27, 2016·2 cites·10 claims
- 0480US9547256B2Developing device, image forming apparatus, and process cartridgeFUJI XEROX CO LTD·Filed 2015·Granted Jan 17, 2017·2 cites·11 claims
- 0577US10656558B1Image forming apparatus and toner cartridgeFUJI XEROX CO LTD·Filed 2019·Granted May 19, 2020·1 cites·16 claims
- 0677US10613466B1Image forming apparatusFUJI XEROX CO LTD·Filed 2019·Granted Apr 7, 2020·1 cites·17 claims
- 0777US10564565B1Electrophotographic image forming apparatusFUJI XEROX CO LTD·Filed 2019·Granted Feb 18, 2020·1 cites·18 claims
- 0875US10394179B1Image forming apparatus with cleaning unitFUJI XEROX CO LTD·Filed 2018·Granted Aug 27, 2019·1 cites·19 claims
- 0969US9052622B2Electrostatic image developing toner, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus and image forming methodSAITO YUTAKA·Filed 2011·Granted Jun 9, 2015·1 cites·15 claims
- 1058US2022091522A1Delivery device and image forming apparatusFUJI XEROX CO LTD·Filed 2021·Application pending·0 cites
- 1157US12346048B2Image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2024·Granted Jul 1, 2025·0 cites·10 claims
- 1256US11630402B2Particle conveying device and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Apr 18, 2023·0 cites·15 claims
- 1355US2025123581A1Image forming apparatus and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2024·Application pending·0 cites
- 1451US10558150B1Image forming apparatusFUJI XEROX CO LTD·Filed 2019·Granted Feb 11, 2020·0 cites·14 claims
- 1550US9244392B2Image forming apparatus with oriented flake shape tonerFUJI XEROX CO LTD·Filed 2014·Granted Jan 26, 2016·0 cites·6 claims
- 1650US8828638B2Two-component developer, developer cartridge, process cartridge and image formation apparatusFUKUSHIMA NORIHITO·Filed 2009·Granted Sep 9, 2014·0 cites·19 claims
- 1748US10488773B2Image forming apparatus comprising a supplying device including a storage and a transport unitFUJI XEROX CO LTD·Filed 2018·Granted Nov 26, 2019·0 cites·11 claims
- 1848US8735036B2Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming methodKITAJIMA KATSUYUKI·Filed 2012·Granted May 27, 2014·0 cites·10 claims
- 1947US11796939B2Conveying device and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Oct 24, 2023·0 cites·6 claims
- 2047US10719041B2Image forming apparatusFUJI XEROX CO LTD·Filed 2019·Granted Jul 21, 2020·0 cites·15 claims
- 2147US9058001B2Image forming apparatusFUJI XEROX CO LTD·Filed 2013·Granted Jun 16, 2015·0 cites·4 claims
- 2246US10466607B2Image forming apparatusFUJI XEROX CO LTD·Filed 2018·Granted Nov 5, 2019·0 cites·16 claims
- 2346US10120295B2Image forming apparatusFUJI XEROX CO LTD·Filed 2017·Granted Nov 6, 2018·0 cites·11 claims
- 2446US8507167B2Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge and image forming apparatusSAITO YUTAKA·Filed 2010·Granted Aug 13, 2013·0 cites·18 claims
- 2546US2020301311A1Image forming apparatus and process cartridge having electrostatic image developing toner with specified viscosityFUJI XEROX CO LTD·Filed 2019·Application pending·0 cites
- 2646US2020292964A1Image forming apparatus including a transporter having blades and electrostatic image developing toner with specified viscosityFUJI XEROX CO LTD·Filed 2019·Application pending·0 cites
- 2745US9983494B2Image forming apparatusFUJI XEROX CO LTD·Filed 2017·Granted May 29, 2018·0 cites·12 claims
- 2844US10180650B2Image forming apparatusFUJI XEROX CO LTD·Filed 2017·Granted Jan 15, 2019·0 cites·9 claims
- 2944US9389581B2Toner for developing electrostatic image, developer for electrostatic image, toner cartridge, process cartridge, and image forming apparatusKITAJIMA KATSUYUKI·Filed 2011·Granted Jul 12, 2016·0 cites·20 claims
- 3043US10152008B2Image forming apparatusFUJI XEROX CO LTD·Filed 2018·Granted Dec 11, 2018·0 cites·10 claims
- 3142US10175612B2Image forming apparatusFUJI XEROX CO LTD·Filed 2017·Granted Jan 8, 2019·0 cites·17 claims
- 3242US10133221B2Image forming apparatusFUJI XEROX CO LTD·Filed 2018·Granted Nov 20, 2018·0 cites·10 claims
- 3342US9964877B2Image forming apparatusFUJI XEROX CO LTD·Filed 2017·Granted May 8, 2018·0 cites·9 claims
- 3441US9983517B2Image forming apparatusFUJI XEROX CO LTD·Filed 2017·Granted May 29, 2018·0 cites·11 claims
- 3541US9874836B1Image forming apparatus using a developer containing a specific tonerFUJI XEROX CO LTD·Filed 2017·Granted Jan 23, 2018·0 cites·8 claims
- 3641US8685608B2Two-component developer, developer cartridge, process cartridge, and image forming apparatusTAKAHASHI SAKON·Filed 2010·Granted Apr 1, 2014·0 cites·14 claims
- 3740US10948848B1Image forming apparatus and toner cartridgeFUJI XEROX CO LTD·Filed 2020·Granted Mar 16, 2021·0 cites·14 claims
- 3838US2013071781A1Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming methodSAITO YUTAKA·Filed 2012·Application pending·0 cites
- 3937US9720356B2Image forming apparatus and image forming methodFUJI XEROX CO LTD·Filed 2015·Granted Aug 1, 2017·0 cites·11 claims
- 4033US2012231381A1Electrostatic image developing toner, toner cartridge, electrostatic image developer, process cartridge and image forming apparatusKITAJIMA KATSUYUKI·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →