Inventor · disambiguated record
Masaaki Sato
Also filed as: KOSAKA SHINYA · MORI TOSHINORI · SAITO SHINICHI · SATO MASAAKI
382 granted patents·73 pending applications·5,585 citations·filing 1974–2025
99Inventor score
Top patents by PatentIndex Score
455 records- 0199US11353822B2Cartridge and electrophotographic image forming apparatusCANON KK·Filed 2021·Granted Jun 7, 2022·8 cites·34 claims
- 0299US11112751B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2021·Granted Sep 7, 2021·6 cites·30 claims
- 0399US11099521B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2020·Granted Aug 24, 2021·7 cites·12 claims
- 0499US11067950B2Cartridge and electrophotographic image forming apparatusCANON KK·Filed 2020·Granted Jul 20, 2021·17 cites·51 claims
- 0599US11036181B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2020·Granted Jun 15, 2021·7 cites·28 claims
- 0699US10139777B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2014·Granted Nov 27, 2018·25 cites·136 claims
- 0799US9804560B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2016·Granted Oct 31, 2017·35 cites·108 claims
- 0899US9429877B2Process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2014·Granted Aug 30, 2016·34 cites·58 claims
- 0999US8862022B2Image forming apparatus and cartridgeCANON KK·Filed 2012·Granted Oct 14, 2014·32 cites·26 claims
- 1099US7813668B2Process cartridge, developing cartridge and electrophotographic image forming apparatusCANON KK·Filed 2009·Granted Oct 12, 2010·73 cites·18 claims
- 1199US7720408B2Process cartridge, developing cartridge and electrophotographic image forming apparatusCANON KK·Filed 2006·Granted May 18, 2010·77 cites·16 claims
- 1299US7689146B2Electrophotographic image forming apparatus and process cartridgeCANON KK·Filed 2008·Granted Mar 30, 2010·63 cites·8 claims
- 1399US7499663B2Electrophotographic image forming apparatus and process cartridgeCANON KK·Filed 2008·Granted Mar 3, 2009·79 cites·5 claims
- 1499US7412193B2Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting methodCANON KK·Filed 2007·Granted Aug 12, 2008·96 cites·15 claims
- 1599US7349657B2Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting methodCANON KK·Filed 2006·Granted Mar 25, 2008·161 cites·17 claims
- 1699US7224925B2Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting methodCANON KK·Filed 2004·Granted May 29, 2007·185 cites·2 claims
- 1799US7158736B2Process cartridge having first and second rotatably coupled frames and electrophotographic image forming apparatus mounting such process cartridgeCANON KK·Filed 2004·Granted Jan 2, 2007·209 cites·8 claims
- 1899US7149457B2Process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2004·Granted Dec 12, 2006·169 cites·20 claims
- 1998US11960239B2Cartridge and electrophotographic image forming apparatusCANON KK·Filed 2023·Granted Apr 16, 2024·3 cites·20 claims
- 2098US11698601B2Cartridge, member constituting cartridge, and image forming apparatusCANON KK·Filed 2022·Granted Jul 11, 2023·4 cites·80 claims
- 2198US11693355B2Cartridge, member constituting cartridge, and image forming apparatusCANON KK·Filed 2021·Granted Jul 4, 2023·4 cites·21 claims
- 2298US11662687B2Cartridge and electrophotographic image forming apparatusCANON KK·Filed 2022·Granted May 30, 2023·4 cites·18 claims
- 2398US11614710B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2022·Granted Mar 28, 2023·3 cites·23 claims
- 2498US11422484B2Cartridge, supply container, and image forming apparatusCANON KK·Filed 2020·Granted Aug 23, 2022·6 cites·28 claims
- 2598US11385593B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2020·Granted Jul 12, 2022·4 cites·16 claims
- 2698US11314199B2Cartridge, member constituting cartridge, and image forming apparatusCANON KK·Filed 2020·Granted Apr 26, 2022·8 cites·72 claims
- 2798US11307529B2Cartridge, member constituting cartridge, and image forming apparatusCANON KK·Filed 2020·Granted Apr 19, 2022·8 cites·102 claims
- 2898US11307531B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2021·Granted Apr 19, 2022·5 cites·29 claims
- 2998US11175624B2Process cartridge and image forming apparatusCANON KK·Filed 2020·Granted Nov 16, 2021·7 cites·16 claims
- 3098US10901365B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2020·Granted Jan 26, 2021·6 cites·14 claims
- 3198US10782647B2Cartridge and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted Sep 22, 2020·13 cites·47 claims
- 3298US10459402B2Cartridge and electrophotographic image forming apparatusCANON KK·Filed 2017·Granted Oct 29, 2019·20 cites·250 claims
- 3398US10386786B2Cartridge, member constituting cartridge, and image forming apparatusCANON KK·Filed 2018·Granted Aug 20, 2019·16 cites·30 claims
- 3498US10228652B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2017·Granted Mar 12, 2019·18 cites·40 claims
- 3598US10168664B2Process cartridge including protrusion to receive a force for moving a developer rollerCANON KK·Filed 2017·Granted Jan 1, 2019·28 cites·3 claims
- 3698US9836020B2Process cartridge with force receiving portion configured to receive a force to move a developing rollerCANON KK·Filed 2016·Granted Dec 5, 2017·35 cites·17 claims
- 3798US9529298B2Developing cartridge having a frame rotatably supporting a developing rollerCANON KK·Filed 2015·Granted Dec 27, 2016·24 cites·20 claims
- 3898US9429906B2Image forming apparatus including a movable engageable member and process cartridge including a force receiving portionCANON KK·Filed 2013·Granted Aug 30, 2016·54 cites·24 claims
- 3998US7660550B2Process cartridge and image forming apparatusCANON KK·Filed 2007·Granted Feb 9, 2010·61 cites·10 claims
- 4098US7155141B2Electrophotographic image forming apparatusCANON KK·Filed 2004·Granted Dec 26, 2006·169 cites·10 claims
- 4198US4423812ACassette receptacle deviceOLYMPUS OPTICAL CO·Filed 1981·Granted Jan 3, 1984·194 cites·5 claims
- 4297US11754970B2Process cartridge having a protrusion with a surface configured to receive a force to move a frame of the process cartridgeCANON KK·Filed 2022·Granted Sep 12, 2023·2 cites·30 claims
- 4397US11467514B2Image forming apparatus and image forming systemCANON KK·Filed 2021·Granted Oct 11, 2022·8 cites·5 claims
- 4497US11156954B2Image forming apparatus including a movable engageable member and process cartridge including a force receiving portionCANON KK·Filed 2019·Granted Oct 26, 2021·9 cites·41 claims
- 4597US11131960B2Cartridge, member constituting cartridge, and image forming apparatusCANON KK·Filed 2017·Granted Sep 28, 2021·12 cites·23 claims
- 4697US10996623B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted May 4, 2021·7 cites·46 claims
- 4797US10712708B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted Jul 14, 2020·11 cites·25 claims
- 4897US10678185B2Cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted Jun 9, 2020·11 cites·15 claims
- 4997US10591868B2Image forming apparatus including a movable engageable member and process cartridge including a force receiving portionCANON KK·Filed 2019·Granted Mar 17, 2020·10 cites·11 claims
- 5097US10401788B2Image forming apparatus including a movable engageable spacing member and process cartridge including a force receiving portionCANON KK·Filed 2018·Granted Sep 3, 2019·10 cites·34 claims
Showing the top 50 of 455 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →