Inventor · disambiguated record
Shinjiro Toba
Also filed as: TOBA SHINJIRO
82 granted patents·11 pending applications·3,133 citations·filing 1999–2025
99Inventor score
Top patents by PatentIndex Score
93 records- 0199US7953340B2Process cartridge having electrical contact and image forming apparatus having electrical contact in urging memberCANON KK·Filed 2010·Granted May 31, 2011·44 cites·6 claims
- 0299US7894733B2Process cartridge and image forming apparatusCANON KK·Filed 2010·Granted Feb 22, 2011·42 cites·12 claims
- 0399US7860433B2Process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2008·Granted Dec 28, 2010·44 cites·21 claims
- 0499US7715746B2Process cartridge having electrical contact and image forming apparatus having electrical contact in urging memberCANON KK·Filed 2007·Granted May 11, 2010·63 cites·11 claims
- 0599US7412193B2Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting methodCANON KK·Filed 2007·Granted Aug 12, 2008·96 cites·15 claims
- 0699US7349657B2Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting methodCANON KK·Filed 2006·Granted Mar 25, 2008·161 cites·17 claims
- 0799US7248810B2Cartridge, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2004·Granted Jul 24, 2007·147 cites·22 claims
- 0899US7224925B2Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting methodCANON KK·Filed 2004·Granted May 29, 2007·185 cites·2 claims
- 0999US7158736B2Process 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
- 1099US7149457B2Process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2004·Granted Dec 12, 2006·169 cites·20 claims
- 1199US6603939B1Developing apparatus, process cartridge, connecting method between developing frame and developer frame, and flexible sealCANON KK·Filed 2001·Granted Aug 5, 2003·175 cites·31 claims
- 1299US6549736B2Process cartridge, engaging member therefor and method for mounting developing roller and magnetCANON KK·Filed 2001·Granted Apr 15, 2003·210 cites·19 claims
- 1399US6542706B2Process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2000·Granted Apr 1, 2003·154 cites·28 claims
- 1499US6519431B1Process cartridge, assembling method therefor and electrophotographic image forming apparatusCANON KK·Filed 2000·Granted Feb 11, 2003·173 cites·38 claims
- 1598US7212768B2Process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2004·Granted May 1, 2007·140 cites·13 claims
- 1698US7164875B2Electrophotographic image forming apparatus having a plurality of mounting portions for detachably mounting a plurality process cartridgesCANON KK·Filed 2004·Granted Jan 16, 2007·126 cites·7 claims
- 1798US6836629B2Developing blade, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2001·Granted Dec 28, 2004·125 cites·12 claims
- 1898US6678488B2Image forming apparatus to which a process cartridge is detachably mountable and process cartridge comprising a rotation fulcrum portionCANON KK·Filed 2001·Granted Jan 13, 2004·117 cites·17 claims
- 1997US11977344B2Image forming apparatus and image forming systemCANON KK·Filed 2022·Granted May 7, 2024·5 cites·24 claims
- 2097US11829100B2Electrophotographic image forming apparatus and catridgeCANON KK·Filed 2021·Granted Nov 28, 2023·6 cites·74 claims
- 2197US8712284B2Process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2013·Granted Apr 29, 2014·19 cites·13 claims
- 2297US8521060B2Cartridge with a protecting member and a sealing member for sealing a developer supply openingNUMATA TETSUYA·Filed 2011·Granted Aug 27, 2013·33 cites·10 claims
- 2397US8301054B2Process cartridge and image forming apparatusTANABE MASATO·Filed 2011·Granted Oct 30, 2012·48 cites·11 claims
- 2497US6937834B2Spacing member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2003·Granted Aug 30, 2005·82 cites·13 claims
- 2596US12066785B2Cartridge and image forming apparatusCANON KK·Filed 2023·Granted Aug 20, 2024·5 cites·41 claims
- 2696US8213831B2Process cartridge and electrophotographic image forming apparatusTOBA SHINJIRO·Filed 2010·Granted Jul 3, 2012·25 cites·14 claims
- 2796US7218882B2Developing device, process cartridge, developer layer regulating member, and developer layer regulating member attaching methodCANON KK·Filed 2004·Granted May 15, 2007·70 cites·31 claims
- 2896US6990302B2Process cartridge and electrophotographic image forming apparatus regulating the positions of creases on a flexible member in accordance with pivotal movement of a support memberCANON KK·Filed 2003·Granted Jan 24, 2006·73 cites·8 claims
- 2994US10353339B2Cartridge with restriction member for restricting relative movement of toner cartridge and process cartridgeCANON KK·Filed 2018·Granted Jul 16, 2019·12 cites·16 claims
- 3094US6424811B1Electrophotographic image forming apparatus and process cartridge detachably mounted thereto having first and second drive force transmitting meansCANON KK·Filed 2000·Granted Jul 23, 2002·56 cites·24 claims
- 3193US9733612B2Cartridge package and packageable process cartridgeCANON KK·Filed 2016·Granted Aug 15, 2017·10 cites·36 claims
- 3292US9213266B2Development apparatus and cartridge with sealing member to prevent leakage of developerCANON KK·Filed 2013·Granted Dec 15, 2015·7 cites·26 claims
- 3391US6708010B2Developing apparatus having magnetic sealCANON KK·Filed 2002·Granted Mar 16, 2004·38 cites·16 claims
- 3491US6473578B2Developing apparatusCANON KK·Filed 2001·Granted Oct 29, 2002·39 cites·22 claims
- 3590US9304488B2Cartridge package and packageable process cartridgeCANON KK·Filed 2014·Granted Apr 5, 2016·12 cites·30 claims
- 3690USD519150SImage forming apparatusCANON KK·Filed 2004·Granted Apr 18, 2006·41 cites·1 claims
- 3788USD798949SProcess cartridge for image forming apparatusCANON KK·Filed 2015·Granted Oct 3, 2017·27 cites·1 claims
- 3887US2025291277A1Image forming apparatus and image forming systemCANON KK·Filed 2025·Application pending·0 cites
- 3986US9535372B2Remanufacturing method of developer accommodating unitCANON KK·Filed 2015·Granted Jan 3, 2017·2 cites·27 claims
- 4083US2025224694A1Electrophotographic image forming apparatus and cartridgeCANON KK·Filed 2025·Application pending·0 cites
- 4183US2024411265A1Electrophotographic image forming apparatus and cartridgeCANON KK·Filed 2024·Application pending·0 cites
- 4282US10663886B2Development cartridge, process cartridge, and image forming apparatusCANON KK·Filed 2019·Granted May 26, 2020·1 cites·16 claims
- 4381US12346041B2Image forming apparatus and image forming systemCANON KK·Filed 2024·Granted Jul 1, 2025·0 cites·15 claims
- 4481US12321128B2Electrophotographic image forming apparatus and cartridgeCANON KK·Filed 2023·Granted Jun 3, 2025·0 cites·51 claims
- 4580USD798948SProcess cartridge for image forming apparatusCANON KK·Filed 2015·Granted Oct 3, 2017·21 cites·1 claims
- 4678USD791862SProcess cartridge for image forming apparatusCANON KK·Filed 2015·Granted Jul 11, 2017·19 cites·1 claims
- 4777US2025013169A1Developer container and image forming systemCANON KK·Filed 2024·Application pending·0 cites
- 4877US2025013166A1ContainerCANON KK·Filed 2024·Application pending·0 cites
- 4976USD791224SProcess cartridge for image forming apparatusCANON KK·Filed 2015·Granted Jul 4, 2017·17 cites·1 claims
- 5073US12124189B2ContainerCANON KK·Filed 2022·Granted Oct 22, 2024·0 cites·13 claims
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 →