Inventor · disambiguated record
Akinobu Hirayama
Also filed as: HIRAYAMA AKINOBU
37 granted patents·11 pending applications·178 citations·filing 2007–2025
97Inventor score
Technology areasG03G
Top patents by PatentIndex Score
48 records- 0198US11822265B2Toner container and image forming systemCANON KK·Filed 2023·Granted Nov 21, 2023·6 cites·31 claims
- 0298US11662673B2Toner container having nozzle and projection at bottom of container and image forming system using containerCANON KK·Filed 2022·Granted May 30, 2023·7 cites·20 claims
- 0398US11592766B2Toner container and image forming systemCANON KK·Filed 2022·Granted Feb 28, 2023·10 cites·30 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
- 0898US7720412B2Process cartridgeCANON KK·Filed 2007·Granted May 18, 2010·37 cites·8 claims
- 0997US11906927B2Cartridge, drum unit and image forming apparatusCANON KK·Filed 2022·Granted Feb 20, 2024·3 cites·24 claims
- 1097US11378909B2Image forming apparatus and image forming unitCANON KK·Filed 2021·Granted Jul 5, 2022·5 cites·13 claims
- 1197US11204582B2Cartridge and image forming apparatusCANON KK·Filed 2020·Granted Dec 21, 2021·4 cites·19 claims
- 1297US11042117B2CartridgeCANON KK·Filed 2020·Granted Jun 22, 2021·4 cites·30 claims
- 1397US10962926B2CartridgeCANON KK·Filed 2020·Granted Mar 30, 2021·4 cites·30 claims
- 1497US10955795B2CartridgeCANON KK·Filed 2020·Granted Mar 23, 2021·4 cites·30 claims
- 1597US10558165B2Cartridge and image forming apparatusCANON KK·Filed 2019·Granted Feb 11, 2020·12 cites·17 claims
- 1697US10474096B2Cartridge and image forming apparatusCANON KK·Filed 2018·Granted Nov 12, 2019·11 cites·43 claims
- 1796US10983475B2Image forming apparatus and image forming unitCANON KK·Filed 2020·Granted Apr 20, 2021·5 cites·16 claims
- 1896US10831150B2Cartridge and image forming apparatusCANON KK·Filed 2020·Granted Nov 10, 2020·4 cites·16 claims
- 1994US12140884B2Toner container and image forming systemCANON KK·Filed 2023·Granted Nov 12, 2024·1 cites·21 claims
- 2094US10761479B2CartridgeCANON KK·Filed 2017·Granted Sep 1, 2020·4 cites·16 claims
- 2194US10739721B2Cartridge and image forming apparatusCANON KK·Filed 2019·Granted Aug 11, 2020·4 cites·24 claims
- 2293US12038716B2Cartridge, drum unit and image forming apparatusCANON KK·Filed 2022·Granted Jul 16, 2024·1 cites·27 claims
- 2393US12032330B2Cartridge, drum unit and image forming apparatusCANON KK·Filed 2022·Granted Jul 9, 2024·1 cites·18 claims
- 2493US11619908B2CartridgeCANON KK·Filed 2022·Granted Apr 4, 2023·1 cites·20 claims
- 2591US12169376B2Toner cartridge and image forming apparatusCANON KK·Filed 2023·Granted Dec 17, 2024·1 cites·37 claims
- 2690US9507288B2Image forming apparatus that detects electrostatic latent image for correctionCANON KK·Filed 2012·Granted Nov 29, 2016·6 cites·16 claims
- 2790US2025315006A1Cartridge, drum unit and image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 2889US11809123B2Image forming apparatus and image forming unitCANON KK·Filed 2022·Granted Nov 7, 2023·1 cites·20 claims
- 2985US12449759B2Cartridge, drum unit and image forming apparatusCANON KK·Filed 2024·Granted Oct 21, 2025·0 cites·20 claims
- 3085US2024411245A1Toner container and image forming systemCANON KK·Filed 2024·Application pending·0 cites
- 3180US2025370402A1Image forming apparatus and cartridge setCANON KK·Filed 2025·Application pending·0 cites
- 3276US2025147461A1Cartridge and image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 3374US2025199451A1Photosensitive member unit, cartridge and electrophotographic image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 3470US12429811B2Cartridge and image forming apparatusCANON KK·Filed 2020·Granted Sep 30, 2025·0 cites·105 claims
- 3568US9110395B2Image forming apparatus and cartridgeTANI SADAAKI·Filed 2012·Granted Aug 18, 2015·1 cites·26 claims
- 3668USD599846SProcess cartridgeCANON KK·Filed 2008·Granted Sep 8, 2009·15 cites·1 claims
- 3760US9354540B2Image forming apparatus which uses electrostatic latent image for color misregistration correctionCANON KK·Filed 2014·Granted May 31, 2016·0 cites·15 claims
- 3858USD599847SToner cartridgeCANON KK·Filed 2008·Granted Sep 8, 2009·10 cites·1 claims
- 3957US8879970B2Image forming apparatus which uses electrostatic latent image for color misregistration correctionCANON KK·Filed 2012·Granted Nov 4, 2014·0 cites·17 claims
- 4057US2025110423A1Toner cartridge, developing cartridge, image forming apparatus and toner discharging memberCANON KK·Filed 2024·Application pending·0 cites
- 4156US2025103000A1Cartridge and image forming apparatusCANON KK·Filed 2024·Application pending·0 cites
- 4256US2024411243A1Photosensitive member unit, cartridge and electrophotographic image forming apparatusCANON KK·Filed 2024·Application pending·0 cites
- 4355US9110422B2Color image forming apparatusCANON KK·Filed 2015·Granted Aug 18, 2015·0 cites·19 claims
- 4454US9075370B2Color image forming apparatusHAGIWARA HIROSHI·Filed 2012·Granted Jul 7, 2015·0 cites·8 claims
- 4554US2024419124A1Image forming apparatus and cartridgeCANON KK·Filed 2024·Application pending·0 cites
- 4649US2023176496A1Image forming apparatus and cartridgeCANON KK·Filed 2023·Application pending·0 cites
- 4746US2020174401A1Developer supplying apparatus, developing apparatus, cartridge, and image forming apparatusCANON KK·Filed 2019·Application pending·0 cites
- 4842US9891576B2Feeding device, cleaning device, process cartridge and image forming apparatusCANON KK·Filed 2016·Granted Feb 13, 2018·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →