Inventor · disambiguated record
Toshiaki Takeuchi
Also filed as: TAKEUCHI TOSHIAKI
75 granted patents·18 pending applications·825 citations·filing 1975–2025
99Inventor score
Top patents by PatentIndex Score
93 records- 0199US9494890B2Developing cartridge, process cartridge and image forming apparatusCANON KK·Filed 2013·Granted Nov 15, 2016·56 cites·15 claims
- 0299US9188906B2Cartridge, developing cartridge, process cartridge and image forming apparatusCANON KK·Filed 2013·Granted Nov 17, 2015·50 cites·76 claims
- 0399US9164430B2Developer container, developing cartridge, process cartridge and image forming apparatusCANON KK·Filed 2014·Granted Oct 20, 2015·48 cites·13 claims
- 0498US11353821B2CartridgeCANON KK·Filed 2020·Granted Jun 7, 2022·4 cites·50 claims
- 0598US11036179B2CartridgeCANON KK·Filed 2020·Granted Jun 15, 2021·4 cites·30 claims
- 0698US10969733B2CartridgeCANON KK·Filed 2020·Granted Apr 6, 2021·4 cites·30 claims
- 0798US10969734B2CartridgeCANON KK·Filed 2020·Granted Apr 6, 2021·4 cites·30 claims
- 0898US9989892B2Developer accommodating container with projected shaped portion for contacting toner seal memberCANON KK·Filed 2016·Granted Jun 5, 2018·42 cites·16 claims
- 0998US9599932B2Developer container with sealing member having a plurality of holes and rotatable member having a plurality of projections contactable with the sealing memberCANON KK·Filed 2014·Granted Mar 21, 2017·43 cites·36 claims
- 1098US9523942B2Developer accommodating container, developing cartridge, process cartridge and image forming apparatusCANON KK·Filed 2016·Granted Dec 20, 2016·61 cites·16 claims
- 1198US9465318B2Developer accommodating container with toner seal member, unsealing member, and auxiliary unsealing memberCANON KK·Filed 2013·Granted Oct 11, 2016·63 cites·16 claims
- 1298US9229371B2Developer container, developing cartridge, process cartridge and image forming apparatusCANON KK·Filed 2014·Granted Jan 5, 2016·41 cites·11 claims
- 1398US9164424B2Cartridge with flexible developer bag and elastic member for acting on the developer bagCANON KK·Filed 2014·Granted Oct 20, 2015·38 cites·18 claims
- 1498US9116466B2Cartridge, process cartridge and image forming apparatusCANON KK·Filed 2013·Granted Aug 25, 2015·42 cites·18 claims
- 1598US9069289B2Developer container, developing cartridge, process cartridge and image forming apparatusCANON KK·Filed 2014·Granted Jun 30, 2015·44 cites·19 claims
- 1698US9052638B2Cartridge and image forming apparatus with seal member for sealing a toner feeding openingCANON KK·Filed 2013·Granted Jun 9, 2015·43 cites·16 claims
- 1797US11204582B2Cartridge and image forming apparatusCANON KK·Filed 2020·Granted Dec 21, 2021·4 cites·19 claims
- 1897US11042117B2CartridgeCANON KK·Filed 2020·Granted Jun 22, 2021·4 cites·30 claims
- 1997US10962926B2CartridgeCANON KK·Filed 2020·Granted Mar 30, 2021·4 cites·30 claims
- 2097US10955795B2CartridgeCANON KK·Filed 2020·Granted Mar 23, 2021·4 cites·30 claims
- 2197US10558165B2Cartridge and image forming apparatusCANON KK·Filed 2019·Granted Feb 11, 2020·12 cites·17 claims
- 2297US10474096B2Cartridge and image forming apparatusCANON KK·Filed 2018·Granted Nov 12, 2019·11 cites·43 claims
- 2397US10095161B2Accommodating container, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2017·Granted Oct 9, 2018·26 cites·36 claims
- 2497US9354552B2Cartridge with flexible container for accommodating developerCANON KK·Filed 2014·Granted May 31, 2016·22 cites·16 claims
- 2596US10831150B2Cartridge and image forming apparatusCANON KK·Filed 2020·Granted Nov 10, 2020·4 cites·16 claims
- 2695US11188021B2Cartridge including an image bearing member and developer bearing member that can be easily separatedCANON KK·Filed 2020·Granted Nov 30, 2021·4 cites·17 claims
- 2794US10761479B2CartridgeCANON KK·Filed 2017·Granted Sep 1, 2020·4 cites·16 claims
- 2894US10739721B2Cartridge and image forming apparatusCANON KK·Filed 2019·Granted Aug 11, 2020·4 cites·24 claims
- 2993US11619908B2CartridgeCANON KK·Filed 2022·Granted Apr 4, 2023·1 cites·20 claims
- 3093US9684276B2Cleaning apparatus, process cartridge and image forming apparatusCANON KK·Filed 2016·Granted Jun 20, 2017·5 cites·12 claims
- 3192US11493878B2Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2021·Granted Nov 8, 2022·2 cites·18 claims
- 3292US10732545B2Cartridge remanufacturing method and cartridgeCANON KK·Filed 2019·Granted Aug 4, 2020·7 cites·25 claims
- 3392US10268156B2Cartridge, process cartridge, and image forming apparatusCANON KK·Filed 2016·Granted Apr 23, 2019·4 cites·14 claims
- 3491US10203879B2Control device and control methodFUJITSU LTD·Filed 2016·Granted Feb 12, 2019·11 cites·15 claims
- 3588US10928751B2Remanufacturing method for developing apparatus and cartridgeCANON KK·Filed 2019·Granted Feb 23, 2021·3 cites·24 claims
- 3684US12298703B2Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2024·Granted May 13, 2025·0 cites·8 claims
- 3784US10025268B2Image forming apparatus main body and image forming system using an electrophotographic image forming process to form an image on a mediumCANON KK·Filed 2015·Granted Jul 17, 2018·2 cites·54 claims
- 3884US2025237994A1Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2025·Application pending·0 cites
- 3983US9190250B2Radiation measurement apparatusNIHON DEMPA KOGYO CO·Filed 2014·Granted Nov 17, 2015·6 cites·2 claims
- 4082US10935926B2Cartridge, process cartridge, and image forming apparatusCANON KK·Filed 2020·Granted Mar 2, 2021·1 cites·14 claims
- 4182US10579012B2Cartridge, process cartridge, and image forming apparatusCANON KK·Filed 2019·Granted Mar 3, 2020·1 cites·13 claims
- 4281US12045004B2Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2023·Granted Jul 23, 2024·0 cites·15 claims
- 4380US8031013B2Surface-mount type crystal oscillatorNIHON DEMPA KOGYO CO·Filed 2009·Granted Oct 4, 2011·10 cites·5 claims
- 4479US4046304AProcess for producing metal composite materialTEIKOKU PISTON RING CO LTD·Filed 1975·Granted Sep 6, 1977·31 cites·1 claims
- 4577US12222674B2Cartridge, toner cartridge, and image forming apparatusCANON KK·Filed 2023·Granted Feb 11, 2025·0 cites·60 claims
- 4677US11789401B2Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2022·Granted Oct 17, 2023·0 cites·20 claims
- 4776US10423117B2Cleaning apparatus and process cartridgeCANON KK·Filed 2017·Granted Sep 24, 2019·1 cites·9 claims
- 4875US11389550B2Nanoparticle, contrast agent for magnetic resonance imaging containing same, and ligand compoundRIKEN·Filed 2018·Granted Jul 19, 2022·1 cites·9 claims
- 4974US2025284225A1Developing apparatus and image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 5074US2025138475A1Cartridge, toner cartridge, and image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
Showing the top 50 of 93 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →