Inventor · disambiguated record
Yuji Nagatomo
Also filed as: NAGATOMO YUJI
32 granted patents·5 pending applications·50 citations·filing 2003–2025
94Inventor score
Top patents by PatentIndex Score
37 records- 0184US7676184B2Developing apparatusRICOH KK·Filed 2007·Granted Mar 9, 2010·8 cites·12 claims
- 0279US8977150B2Image forming apparatus including a controller configured to regulate a potential difference between a photoconductor and a developing memberYAMAMOTO SHIN·Filed 2012·Granted Mar 10, 2015·3 cites·10 claims
- 0378US7684732B2Process unit and image forming apparatus including the sameRICOH KK·Filed 2007·Granted Mar 23, 2010·5 cites·13 claims
- 0477US7738803B2Image forming method and apparatus for effectively charging an image carrierRICOH KK·Filed 2007·Granted Jun 15, 2010·5 cites·20 claims
- 0574US7664433B2Cleaning of a charging member in an image forming apparatusRICOH KK·Filed 2008·Granted Feb 16, 2010·4 cites·12 claims
- 0670US7725054B2Electrifying apparatus, a processing unit, and an image formation apparatusRICOH KK·Filed 2007·Granted May 25, 2010·3 cites·12 claims
- 0766US8983323B2Color image forming apparatus with a line velocity difference set between image carriersYAMASHITA TAKESHI·Filed 2013·Granted Mar 17, 2015·1 cites·10 claims
- 0864US8805222B2Image developing device, process cartridge including image developing device, and image forming device including image developing deviceNAKATAKE NAOKI·Filed 2012·Granted Aug 12, 2014·1 cites·18 claims
- 0964US7734227B2Developing device and image-forming apparatus using multiple-component developerKONICA MINOLTA BUSINESS TECH·Filed 2006·Granted Jun 8, 2010·2 cites·32 claims
- 1064US2025242505A1Remote work support systemSUMITOMO HEAVY INDUSTRIES·Filed 2025·Application pending·0 cites
- 1161US7907871B2Image forming apparatusRICOH CO LTD·Filed 2007·Granted Mar 15, 2011·2 cites·18 claims
- 1261US7903993B2Image forming apparatusRICOH CO LTD·Filed 2008·Granted Mar 8, 2011·2 cites·20 claims
- 1361US7822356B2Image forming apparatusRICOH KK·Filed 2008·Granted Oct 26, 2010·2 cites·14 claims
- 1457US7539442B2Charging unit, process unit including the same, and image forming apparatus including the sameRICOH KK·Filed 2007·Granted May 26, 2009·1 cites·20 claims
- 1556US8354164B2Semiconductive member, and developing roll, charging roll, transfer belt, and image forming apparatus using sameRICOH CO LTD·Filed 2009·Granted Jan 15, 2013·1 cites·4 claims
- 1655US7751753B2Cleanerless image forming apparatusRICOH KK·Filed 2007·Granted Jul 6, 2010·1 cites·19 claims
- 1751US11858209B2Fabricating apparatus and method for altering the kinetic energy of liquid dropletsNAGATOMO YUJI·Filed 2021·Granted Jan 2, 2024·0 cites·18 claims
- 1851US2023211550A1Liquid fabrication, fabrication kit, and method of manufacturing fabrication objectTAKIMOTO KOJI·Filed 2023·Application pending·0 cites
- 1948US9958806B2Developing device and image forming apparatus incorporating sameTSUJI MASATO·Filed 2016·Granted May 1, 2018·0 cites·8 claims
- 2047US7233755B2Image forming apparatusKONICA MINOLTA BUSINESS TECH·Filed 2004·Granted Jun 19, 2007·4 cites·7 claims
- 2145US7792463B2Image forming apparatus including a brush member to temporarily capture tonerRICOH KK·Filed 2008·Granted Sep 7, 2010·0 cites·14 claims
- 2245US7693459B2Charging device for charging a surface of a latent image bearing member and an image forming apparatus including the charging deviceRICOH KK·Filed 2007·Granted Apr 6, 2010·0 cites·14 claims
- 2344US9335663B2Seal, cleaning unit with seal, transfer unit with seal, developing unit with seal, process cartridge with seal, image forming apparatus with seal, and image forming methodABE KYOKO·Filed 2015·Granted May 10, 2016·0 cites·14 claims
- 2444US7082277B2Contact charger and image forming apparatusKONICA MINOLTA BUSINESS TECH·Filed 2004·Granted Jul 25, 2006·3 cites·19 claims
- 2543US7796935B2Process cartridge and image forming apparatus including sameRICOH KK·Filed 2008·Granted Sep 14, 2010·0 cites·19 claims
- 2642US10036976B2Developing device, and image forming apparatus and process unit incorporating sameNAGATOMO YUJI·Filed 2016·Granted Jul 31, 2018·0 cites·15 claims
- 2742US9116460B2Reducing toner adhesion to a development device of an image forming apparatusMATSUNO YASUHIDE·Filed 2013·Granted Aug 25, 2015·0 cites·18 claims
- 2842US8406664B2Image forming apparatus, image forming method, and developing deviceFUJITA TETSUMARU·Filed 2008·Granted Mar 26, 2013·0 cites·18 claims
- 2942US7202675B2Device and method for measuring toner currentKONICA MINOLTA HOLDINGS INC·Filed 2005·Granted Apr 10, 2007·0 cites·18 claims
- 3041US8971743B2Image forming apparatus and image forming methodMIYAZAKI TAKAFUMI·Filed 2013·Granted Mar 3, 2015·0 cites·13 claims
- 3141US7796912B2Image forming method and apparatus which uses alternating voltage to form an electric field for moving tonerRICOH KK·Filed 2008·Granted Sep 14, 2010·0 cites·20 claims
- 3240US8867971B2Developer regulator, development device, and image forming apparatus incorporating sameINOUE RYUJI·Filed 2011·Granted Oct 21, 2014·0 cites·11 claims
- 3340US6999699B2Contact charger and image forming apparatusKONICA MINOLTA BUSINESS TECH·Filed 2003·Granted Feb 14, 2006·2 cites·18 claims
- 3438US2008038017A1Method and apparatus for image forming for effectively charging an image carrierFUJITA TETSUMARU·Filed 2007·Application pending·0 cites
- 3536US2008227001A1Image forming method and process cartridgeKADOTA TAKUYA·Filed 2008·Application pending·0 cites
- 3634US2013236217A1Development device, and image forming apparatus and process unit incorporating sameNAGATOMO YUJI·Filed 2013·Application pending·0 cites
- 3730US9551956B2Image forming apparatus that utilizes toner roller bias voltages for image density adjustmentsABE KYOKO·Filed 2016·Granted Jan 24, 2017·0 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when Yuji Nagatomo 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 →