Inventor · disambiguated record
Yasuo Fukamachi
Also filed as: FUKAMACHI YASUO
130 granted patents·8 pending applications·502 citations·filing 2008–2025
99Inventor score
Top patents by PatentIndex Score
138 records- 0198US12092992B2Developing cartridge including developing roller and couplingBROTHER IND LTD·Filed 2023·Granted Sep 17, 2024·2 cites·20 claims
- 0298US8867932B2Cartridge and image forming apparatusBROTHER IND LTD·Filed 2013·Granted Oct 21, 2014·21 cites·18 claims
- 0398US8463145B2CartridgeUKAI MASAMITSU·Filed 2011·Granted Jun 11, 2013·58 cites·36 claims
- 0497US10928750B2Developing cartridge including protrusion positioned at outer surface of casingBROTHER IND LTD·Filed 2020·Granted Feb 23, 2021·4 cites·20 claims
- 0597US10310413B2Developing cartridge including developing roller having developing roller shaftBROTHER IND LTD·Filed 2017·Granted Jun 4, 2019·11 cites·15 claims
- 0697US9785093B2Developing cartridge including developing roller having developing roller shaftBROTHER IND LTD·Filed 2016·Granted Oct 10, 2017·12 cites·15 claims
- 0797US9557684B2Developing cartridge including developing roller having developing roller shaftBROTHER IND LTD·Filed 2015·Granted Jan 31, 2017·10 cites·32 claims
- 0897US9494914B2Developing cartridge including developing roller having developing roller shaftBROTHER IND LTD·Filed 2016·Granted Nov 15, 2016·10 cites·14 claims
- 0997US9383720B1Process cartridge and drum cartridgeBROTHER IND LTD·Filed 2015·Granted Jul 5, 2016·24 cites·27 claims
- 1097US9207567B2Cap configuration for a toner cartridgeBROTHER IND LTD·Filed 2014·Granted Dec 8, 2015·17 cites·16 claims
- 1197US8948661B2Cap configuration for a toner cartridgeBROTHER IND LTD·Filed 2014·Granted Feb 3, 2015·16 cites·20 claims
- 1297US8761643B2Cap configuration for a toner cartridgeMUSHIKA MOTOAKI·Filed 2014·Granted Jun 24, 2014·17 cites·16 claims
- 1397US8666293B2Cap configuration for a toner cartridgeMUSHIKA MOTOAKI·Filed 2011·Granted Mar 4, 2014·18 cites·23 claims
- 1497US7953339B2Image forming device and cartridge being electrically connected by terminalsBROTHER IND LTD·Filed 2008·Granted May 31, 2011·29 cites·19 claims
- 1596US11934113B2Developing cartridge including protrusion positioned at outer surface of casingBROTHER IND LTD·Filed 2023·Granted Mar 19, 2024·2 cites·16 claims
- 1696US9857731B2Developing cartridge including protrusion positioned at outer surface of casingBROTHER IND LTD·Filed 2016·Granted Jan 2, 2018·8 cites·35 claims
- 1796US9008522B2Developing cartridge having housing and developing rollerITABASHI NAO·Filed 2012·Granted Apr 14, 2015·10 cites·20 claims
- 1896US8948617B2Cartridge provided with pivotable member for new product detectionSHIRAKI MASATOSHI·Filed 2012·Granted Feb 3, 2015·17 cites·7 claims
- 1995US11762312B2Developing cartridge including movable plate for moving holder holding electrical contact surfaceBROTHER IND LTD·Filed 2022·Granted Sep 19, 2023·3 cites·19 claims
- 2095US11740583B2Image forming apparatusBROTHER IND LTD·Filed 2022·Granted Aug 29, 2023·2 cites·14 claims
- 2195US11733639B2Image forming apparatus and toner cartridgeBROTHER IND LTD·Filed 2021·Granted Aug 22, 2023·2 cites·18 claims
- 2295US10551768B2Developing cartridge including protrusion positioned at outer surface of casingBROTHER IND LTD·Filed 2019·Granted Feb 4, 2020·6 cites·20 claims
- 2395US8938187B2Process cartridgeFUKAMACHI YASUO·Filed 2012·Granted Jan 20, 2015·10 cites·16 claims
- 2494US11119438B2Image forming apparatus and toner cartridgeBROTHER IND LTD·Filed 2019·Granted Sep 14, 2021·5 cites·20 claims
- 2594US10054901B1Developing cartridge including first gear, second gear, and protrusion movable together with second gearBROTHER IND LTD·Filed 2017·Granted Aug 21, 2018·7 cites·27 claims
- 2694US8594526B2Developing cartridge and image forming apparatusMUSHIKA MOTOAKI·Filed 2011·Granted Nov 26, 2013·9 cites·32 claims
- 2793US10108138B2Image forming apparatus including process cartridge having a toner cartridge detachably attached to a drum cartridgeBROTHER IND LTD·Filed 2016·Granted Oct 23, 2018·4 cites·22 claims
- 2893US9846405B2Developing cartridge comprising mechanism for information detectionBROTHER IND LTD·Filed 2016·Granted Dec 19, 2017·4 cites·5 claims
- 2992US11249438B2Image forming apparatusBROTHER IND LTD·Filed 2020·Granted Feb 15, 2022·2 cites·4 claims
- 3092US9904237B2Developing cartridge including protrusion pivotally movable relative to casingBROTHER IND LTD·Filed 2016·Granted Feb 27, 2018·4 cites·9 claims
- 3192US9864329B2Developer cartridge provided with gear including protrusionBROTHER IND LTD·Filed 2016·Granted Jan 9, 2018·4 cites·32 claims
- 3291US12210300B2Developing cartridge including movable plate for moving holder holding electrical contact surfaceBROTHER IND LTD·Filed 2023·Granted Jan 28, 2025·1 cites·20 claims
- 3391US9207632B2Developing cartridge provided with detection bodyBROTHER IND LTD·Filed 2015·Granted Dec 8, 2015·4 cites·19 claims
- 3491US8995846B2Cartridge mountable on image-forming apparatusITABASHI NAO·Filed 2012·Granted Mar 31, 2015·5 cites·51 claims
- 3591US2025321516A1Developing cartridge including protrusion positioned at outer surface of casingBROTHER IND LTD·Filed 2025·Application pending·0 cites
- 3689US10073409B2Developing cartridge comprising mechanism for information detectionBROTHER IND LTD·Filed 2017·Granted Sep 11, 2018·2 cites·8 claims
- 3789US9310759B2Process cartridge provided with cleaning unitBROTHER IND LTD·Filed 2015·Granted Apr 12, 2016·4 cites·13 claims
- 3889US8983346B2Development deviceFUKAMACHI YASUO·Filed 2012·Granted Mar 17, 2015·4 cites·11 claims
- 3989US2024419123A1Developing cartridge including developing roller and couplingBROTHER IND LTD·Filed 2024·Application pending·0 cites
- 4087US12366817B2Developing cartridge including protrusion positioned at outer surface of casingBROTHER IND LTD·Filed 2024·Granted Jul 22, 2025·0 cites·14 claims
- 4185US12259680B2Image forming apparatusBROTHER IND LTD·Filed 2023·Granted Mar 25, 2025·0 cites·10 claims
- 4284US10303113B2Developing cartridge comprising mechanism for information detectionBROTHER IND LTD·Filed 2018·Granted May 28, 2019·1 cites·8 claims
- 4383US11333996B2Developing cartridge attachable to drum cartridge and having electrical contact surface electrically connected to developing memoryBROTHER IND LTD·Filed 2021·Granted May 17, 2022·1 cites·21 claims
- 4482US12197166B2Image forming apparatusBROTHER IND LTD·Filed 2023·Granted Jan 14, 2025·0 cites·14 claims
- 4582US11188008B2Image forming apparatus including first and second guide frames for guiding attachment of drum cartridge to which developing cartridge is attachedBROTHER IND LTD·Filed 2021·Granted Nov 30, 2021·1 cites·21 claims
- 4682US9442423B2Developing cartridge capable of facilitating toner circulation at developing roller support portionBROTHER IND LTD·Filed 2015·Granted Sep 13, 2016·2 cites·21 claims
- 4782US2025189927A1Image forming apparatusBROTHER IND LTD·Filed 2025·Application pending·0 cites
- 4881US2025116953A1Developing cartridge including movable plate for moving holder holding electrical contact surfaceBROTHER IND LTD·Filed 2024·Application pending·0 cites
- 4980US12443125B2Developing cartridge including movable holder for holding electrical contact surfaceBROTHER IND LTD·Filed 2023·Granted Oct 14, 2025·0 cites·20 claims
- 5080US12130576B2Image forming apparatus and toner cartridgeBROTHER IND LTD·Filed 2023·Granted Oct 29, 2024·0 cites·11 claims
Showing the top 50 of 138 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →