Inventor · disambiguated record
Nao Itabashi
Also filed as: ITABASHI NAO
275 granted patents·18 pending applications·865 citations·filing 2002–2025
99Inventor score
Top patents by PatentIndex Score
293 records- 0199US11687016B2Developing cartridge having coupling and developing rollerBROTHER IND LTD·Filed 2022·Granted Jun 27, 2023·4 cites·15 claims
- 0299US11675289B2Developing cartridge capable of reducing size of image forming apparatusBROTHER IND LTD·Filed 2022·Granted Jun 13, 2023·5 cites·22 claims
- 0399US11067919B2Developing cartridge capable of reducing size of image forming apparatusBROTHER IND LTD·Filed 2020·Granted Jul 20, 2021·6 cites·19 claims
- 0498US12235597B2Developing cartridge capable of reducing size of image forming apparatusBROTHER IND LTD·Filed 2024·Granted Feb 25, 2025·2 cites·30 claims
- 0598US12092992B2Developing cartridge including developing roller and couplingBROTHER IND LTD·Filed 2023·Granted Sep 17, 2024·2 cites·20 claims
- 0698US10935925B2Image forming apparatus with a memory positioned on a drum frameBROTHER IND LTD·Filed 2020·Granted Mar 2, 2021·5 cites·20 claims
- 0798US10025264B1Developing cartridge including storage medium having electric contact surfaceBROTHER IND LTD·Filed 2017·Granted Jul 17, 2018·25 cites·21 claims
- 0898US9195207B2Cartridge having detection bodyITABASHI NAO·Filed 2012·Granted Nov 24, 2015·18 cites·28 claims
- 0997US11860568B2Developing cartridgeBROTHER IND LTD·Filed 2022·Granted Jan 2, 2024·2 cites·8 claims
- 1097US11754941B2Developing cartridgeBROTHER IND LTD·Filed 2022·Granted Sep 12, 2023·2 cites·8 claims
- 1197US11500328B2Drum cartridge including electrical contact surface movable relative to drum frameBROTHER IND LTD·Filed 2021·Granted Nov 15, 2022·3 cites·20 claims
- 1297US11294325B2Image forming apparatus with a memory positioned on a drum frameBROTHER IND LTD·Filed 2021·Granted Apr 5, 2022·3 cites·4 claims
- 1397US11262695B2Drum unit having electrical contact surface positioned at outer surface of frame and image forming apparatus provided with the sameBROTHER IND LTD·Filed 2020·Granted Mar 1, 2022·3 cites·13 claims
- 1497US10310413B2Developing cartridge including developing roller having developing roller shaftBROTHER IND LTD·Filed 2017·Granted Jun 4, 2019·11 cites·15 claims
- 1597US9946190B2Developing cartridgeBROTHER IND LTD·Filed 2016·Granted Apr 17, 2018·11 cites·83 claims
- 1697US9846387B2Developing cartridge having coupling and developing rollerBROTHER IND LTD·Filed 2016·Granted Dec 19, 2017·8 cites·18 claims
- 1797US9785093B2Developing cartridge including developing roller having developing roller shaftBROTHER IND LTD·Filed 2016·Granted Oct 10, 2017·12 cites·15 claims
- 1897US9557684B2Developing cartridge including developing roller having developing roller shaftBROTHER IND LTD·Filed 2015·Granted Jan 31, 2017·10 cites·32 claims
- 1997US9494914B2Developing cartridge including developing roller having developing roller shaftBROTHER IND LTD·Filed 2016·Granted Nov 15, 2016·10 cites·14 claims
- 2097US9395684B2Developing cartridge having coupling and developing rollerBROTHER IND LTD·Filed 2015·Granted Jul 19, 2016·10 cites·25 claims
- 2197US9323214B2Developing cartridge provided with cover, and process cartridge having the sameITABASHI NAO·Filed 2012·Granted Apr 26, 2016·12 cites·18 claims
- 2297US8923709B2Image forming apparatus capable of determining a condition of cartridge assembled thereinITABASHI NAO·Filed 2012·Granted Dec 30, 2014·25 cites·14 claims
- 2397US7813677B2Process cartridge having charging device with conductive grid electrodeBROTHER IND LTD·Filed 2008·Granted Oct 12, 2010·24 cites·13 claims
- 2496US12271144B2Developing cartridgeBROTHER IND LTD·Filed 2023·Granted Apr 8, 2025·1 cites·17 claims
- 2596US11988978B2Developing cartridge capable of reducing size of image forming apparatusBROTHER IND LTD·Filed 2023·Granted May 21, 2024·1 cites·45 claims
- 2696US11934143B2Drum cartridge including movable electrical contact surface, and image-forming apparatus using the sameBROTHER IND LTD·Filed 2023·Granted Mar 19, 2024·2 cites·10 claims
- 2796US11853000B2Image forming apparatus with a memory positioned on a drum frameBROTHER IND LTD·Filed 2022·Granted Dec 26, 2023·2 cites·18 claims
- 2896US11592764B2Developing cartridgeBROTHER IND LTD·Filed 2021·Granted Feb 28, 2023·2 cites·7 claims
- 2996US11474450B2Developing cartridgeBROTHER IND LTD·Filed 2021·Granted Oct 18, 2022·2 cites·12 claims
- 3096US11474451B2Developing cartridgeBROTHER IND LTD·Filed 2021·Granted Oct 18, 2022·2 cites·13 claims
- 3196US11442398B2Drum cartridge having electrical contact surface positioned at outer surface of drum frameBROTHER IND LTD·Filed 2021·Granted Sep 13, 2022·3 cites·17 claims
- 3296US11435690B2Cartridge including holder for holding electrical contact surface and method of recycling cartridgeBROTHER IND LTD·Filed 2021·Granted Sep 6, 2022·4 cites·24 claims
- 3396US11275337B2Developing cartridgeBROTHER IND LTD·Filed 2021·Granted Mar 15, 2022·2 cites·8 claims
- 3496US10401789B2Drum unit having electrical contact surface positioned at outer surface of frame and image forming apparatus provided with the sameBROTHER IND LTD·Filed 2018·Granted Sep 3, 2019·8 cites·27 claims
- 3596US10175637B2Developing cartridge having contact surfaceBROTHER IND LTD·Filed 2017·Granted Jan 8, 2019·15 cites·25 claims
- 3696US10101684B2Image forming apparatus and cartridge comprising detection gearBROTHER IND LTD·Filed 2017·Granted Oct 16, 2018·11 cites·23 claims
- 3796US10048645B2Developing cartridge provided with coverBROTHER IND LTD·Filed 2018·Granted Aug 14, 2018·7 cites·7 claims
- 3896US10042282B2Developing cartridge capable of releasing meshing between gear and rack gearBROTHER IND LTD·Filed 2017·Granted Aug 7, 2018·12 cites·21 claims
- 3996US10018960B2Developing cartridge including electric contact surfaceBROTHER IND LTD·Filed 2017·Granted Jul 10, 2018·13 cites·17 claims
- 4096US9891581B2Developing cartridge provided with coverBROTHER IND LTD·Filed 2016·Granted Feb 13, 2018·7 cites·14 claims
- 4196US9529302B2Developing cartridge provided with coverBROTHER IND LTD·Filed 2016·Granted Dec 27, 2016·7 cites·7 claims
- 4296US9008522B2Developing cartridge having housing and developing rollerITABASHI NAO·Filed 2012·Granted Apr 14, 2015·10 cites·20 claims
- 4396US8995866B2Cartridge having coupling member and detection bodyITABASHI NAO·Filed 2012·Granted Mar 31, 2015·8 cites·22 claims
- 4496US8849133B2Image forming apparatus and cartridge thereforITABASHI NAO·Filed 2012·Granted Sep 30, 2014·17 cites·19 claims
- 4596US7656421B2Image forming apparatusBROTHER IND LTD·Filed 2008·Granted Feb 2, 2010·25 cites·11 claims
- 4696US7463850B2Charging device for a process cartridge and an image forming apparatusBROTHER IND LTD·Filed 2005·Granted Dec 9, 2008·21 cites·9 claims
- 4795US12204273B2Developing cartridge having a lever movable relative to a casingBROTHER IND LTD·Filed 2023·Granted Jan 21, 2025·1 cites·9 claims
- 4895US12045003B2Method for removing and attaching first holder member relative to second holder member supported by housing in cartridgeBROTHER IND LTD·Filed 2023·Granted Jul 23, 2024·2 cites·15 claims
- 4995US12025948B2Drum cartridge including electrical contact surface movable relative to drum frameBROTHER IND LTD·Filed 2023·Granted Jul 2, 2024·1 cites·20 claims
- 5095US11947306B2Developing cartridge including electrically non-conductive collar covering end portion of developing-roller shaftBROTHER IND LTD·Filed 2023·Granted Apr 2, 2024·2 cites·13 claims
Showing the top 50 of 293 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →