Inventor · disambiguated record
Takatoshi Hamada
Also filed as: HAMADA TAKATOSHI
47 granted patents·13 pending applications·328 citations·filing 1987–2025
98Inventor score
Files withCANON KK41MINOLTA CO LTD5KONICA MINOLTA BUSINESS TECH4KONICA MINOLTA INC2NITTETSU JITSUGYO CO LTD2
Top patents by PatentIndex Score
60 records- 0199US9494890B2Developing cartridge, process cartridge and image forming apparatusCANON KK·Filed 2013·Granted Nov 15, 2016·56 cites·15 claims
- 0298US11709438B2Cartridge used in image forming apparatusCANON KK·Filed 2022·Granted Jul 25, 2023·4 cites·14 claims
- 0398US9164424B2Cartridge with flexible developer bag and elastic member for acting on the developer bagCANON KK·Filed 2014·Granted Oct 20, 2015·38 cites·18 claims
- 0495US11294299B2Cartridge used in image forming apparatusCANON KK·Filed 2019·Granted Apr 5, 2022·6 cites·10 claims
- 0594US12153355B2Cartridge used in image forming apparatusCANON KK·Filed 2023·Granted Nov 26, 2024·1 cites·9 claims
- 0694US11372348B2Developing device, cartridge, image forming apparatusCANON KK·Filed 2020·Granted Jun 28, 2022·4 cites·40 claims
- 0794US10007225B2Feeding device, process cartridge and image forming apparatusCANON KK·Filed 2016·Granted Jun 26, 2018·8 cites·14 claims
- 0892US9778616B2Process cartridgeCANON KK·Filed 2016·Granted Oct 3, 2017·6 cites·7 claims
- 0990USD863419SFlange coupling for process cartridge for image forming apparatusCANON KK·Filed 2018·Granted Oct 15, 2019·34 cites·1 claims
- 1089US10331077B2Cartridge where biasing member is reliably held on coupling memberCANON KK·Filed 2017·Granted Jun 25, 2019·3 cites·23 claims
- 1189US9904208B2Accommodating container, cleaning device, developing device, process cartridge, and image forming apparatusCANON KK·Filed 2016·Granted Feb 27, 2018·3 cites·20 claims
- 1287US10156811B2Conveying device having a first conveyance member that transmits driving force to a second conveyance memberCANON KK·Filed 2015·Granted Dec 18, 2018·3 cites·17 claims
- 1386US10466641B2Image forming unit to suppress uneven chargingCANON KK·Filed 2018·Granted Nov 5, 2019·2 cites·7 claims
- 1485US2025044721A1Cartridge used in image forming apparatusCANON KK·Filed 2024·Application pending·0 cites
- 1584US9823603B2Feeding device, cleaning device, developing device, process cartridge, and image forming apparatusCANON KK·Filed 2016·Granted Nov 21, 2017·2 cites·25 claims
- 1682US4817737AHydraulic striking device with impact frequency controlNITTETSU JITSUGYO CO LTD·Filed 1987·Granted Apr 4, 1989·41 cites·4 claims
- 1780US2024319665A1Process unit including first and second resin materials and image forming apparatusCANON KK·Filed 2024·Application pending·0 cites
- 1878US12038717B2Process unit including first and second resin materials and image forming apparatusCANON KK·Filed 2022·Granted Jul 16, 2024·0 cites·38 claims
- 1977USD845384SProcess cartridge for image forming apparatusCANON KK·Filed 2017·Granted Apr 9, 2019·17 cites·1 claims
- 2076US4951757AHydraulic striking device with impact frequency controlNITTETSU JITSUGYO CO LTD·Filed 1988·Granted Aug 28, 1990·31 cites·1 claims
- 2176US2025306530A1Process cartridge and developing cartridgeCANON KK·Filed 2025·Application pending·0 cites
- 2275US10073380B2Feeding deviceCANON KK·Filed 2016·Granted Sep 11, 2018·1 cites·21 claims
- 2374US12461468B2Toner cartridge having feeding member and pump for discharging tonerCANON KK·Filed 2023·Granted Nov 4, 2025·0 cites·20 claims
- 2474US2025199451A1Photosensitive member unit, cartridge and electrophotographic image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 2573US11520286B2Cartridge and image forming apparatusCANON KK·Filed 2021·Granted Dec 6, 2022·0 cites·20 claims
- 2673US2025306529A1Cartridge and image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 2773US2025306527A1Roller holding unit, cartridge and image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 2869US11835888B2Developing device, cartridge, image forming apparatusCANON KK·Filed 2022·Granted Dec 5, 2023·0 cites·11 claims
- 2968US10845723B2Photosensitive drum unit to address vibration of a charge rollerCANON KK·Filed 2019·Granted Nov 24, 2020·0 cites·6 claims
- 3067US11982952B2Toner cartridge having feeding member and pump for discharging pumpCANON KK·Filed 2021·Granted May 14, 2024·0 cites·51 claims
- 3167US8941701B2Image forming apparatus and method for controlling the image forming apparatusHAMADA TAKATOSHI·Filed 2012·Granted Jan 27, 2015·2 cites·10 claims
- 3263US6744459B2Image forming apparatus using a single optical fiber to transmit electrical signalsMINOLTA CO LTD·Filed 2001·Granted Jun 1, 2004·5 cites·12 claims
- 3363US6246463B1Optical laser scanning device and image forming apparatus having the optical laser scanning deviceMINOLTA CO LTD·Filed 1999·Granted Jun 12, 2001·27 cites·17 claims
- 3458US7432943B2Image forming apparatusKONICA MINOLTA BUSINESS TECH·Filed 2006·Granted Oct 7, 2008·1 cites·5 claims
- 3556US6980322B1Image forming apparatus in which light emitted by an exposing light source is conducted by an optical waveguideMINOLTA CO LTD·Filed 2000·Granted Dec 27, 2005·6 cites·19 claims
- 3656US2024411243A1Photosensitive member unit, cartridge and electrophotographic image forming apparatusCANON KK·Filed 2024·Application pending·0 cites
- 3755US10551767B2Manufacturing method for developer container, developer container, developing apparatus, and process cartridgeCANON KK·Filed 2017·Granted Feb 4, 2020·0 cites·6 claims
- 3852US10678164B2Developer container, developing device and process cartridgeCANON KK·Filed 2019·Granted Jun 9, 2020·0 cites·12 claims
- 3952US7639273B2Image forming apparatusKONICA MINOLTA BUSINESS TECH·Filed 2008·Granted Dec 29, 2009·0 cites·2 claims
- 4051US11287763B2Toner transport apparatusCANON KK·Filed 2020·Granted Mar 29, 2022·0 cites·13 claims
- 4151US2011151577A1Disposable device for automated biological sample preparationZHANG JIAN-PING·Filed 2009·Application pending·0 cites
- 4249US11016411B2Process cartridge, developing apparatus, and image forming apparatusCANON KK·Filed 2020·Granted May 25, 2021·0 cites·14 claims
- 4349US10895825B2Developer accommodating container, developing device and process cartridgeCANON KK·Filed 2019·Granted Jan 19, 2021·0 cites·10 claims
- 4448US2006073526A1Antibodies, assay method by using them and judgment method for pancreas cancerWAKO PURE CHEM IND LTD·Filed 2004·Application pending·0 cites
- 4545US2020073288A1Remanufacturing methodCANON KK·Filed 2019·Application pending·0 cites
- 4643US5987193AImage writing device and methodMINOLTA CO LTD·Filed 1996·Granted Nov 16, 1999·10 cites·18 claims
- 4742US9703231B2Image formation optical scanner, image forming apparatus, and non-transitory computer-readable recording medium storing image forming apparatus optical scanning programKONICA MINOLTA INC·Filed 2016·Granted Jul 11, 2017·0 cites·10 claims
- 4839USD889415SProcess cartridge for image forming apparatusCANON KK·Filed 2018·Granted Jul 7, 2020·2 cites·1 claims
- 4939USD862585SSide cover for process cartridge for image forming apparatusCANON KK·Filed 2018·Granted Oct 8, 2019·2 cites·1 claims
- 5039USD862586SPhotosensitive drum for process cartridge for image forming apparatusCANON KK·Filed 2018·Granted Oct 8, 2019·2 cites·1 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →