Inventor · disambiguated record
Hiroki Shimizu
Also filed as: SHIMIZU HIROKI
68 granted patents·19 pending applications·209 citations·filing 1976–2025
98Inventor score
Top patents by PatentIndex Score
87 records- 0198US11073787B2Process cartridge with a coupling member having a movable force receiving portionCANON KK·Filed 2020·Granted Jul 27, 2021·5 cites·28 claims
- 0296US10095180B2Developing cartridge which is movable toward and away from image bearing memberCANON KK·Filed 2017·Granted Oct 9, 2018·17 cites·11 claims
- 0396US10025266B2Process cartridge including a coupling member and a sheet that contacts the coupling memberCANON KK·Filed 2016·Granted Jul 17, 2018·9 cites·2 claims
- 0496US9880517B2Process cartridge and image forming apparatusCANON KK·Filed 2015·Granted Jan 30, 2018·14 cites·4 claims
- 0596US9632479B2Process cartridge and image forming apparatusCANON KK·Filed 2015·Granted Apr 25, 2017·10 cites·5 claims
- 0695US11703142B2Electromagnetic valveNIDEC TOSOK CORP·Filed 2021·Granted Jul 18, 2023·3 cites·9 claims
- 0795US11603946B2Electromagnetic valveNIDEC TOSOK CORP·Filed 2022·Granted Mar 14, 2023·3 cites·10 claims
- 0895US11415238B2Electromagnetic valve and valve deviceNIDEC TOSOK CORP·Filed 2021·Granted Aug 16, 2022·3 cites·6 claims
- 0995US11188021B2Cartridge 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
- 1095US11016440B2Cartridge reproduction method and cartridgeCANON KK·Filed 2020·Granted May 25, 2021·4 cites·20 claims
- 1195US9996052B2Cartridge capable of being inserted in an apparatus main body of an image forming apparatusCANON KK·Filed 2017·Granted Jun 12, 2018·5 cites·20 claims
- 1292US11493878B2Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2021·Granted Nov 8, 2022·2 cites·18 claims
- 1392US10732545B2Cartridge remanufacturing method and cartridgeCANON KK·Filed 2019·Granted Aug 4, 2020·7 cites·25 claims
- 1492US10228298B2Torque sensor coil and torque sensorHITACHI METALS LTD·Filed 2017·Granted Mar 12, 2019·5 cites·23 claims
- 1591US10712707B2Process cartridge having a positioning portion capable of positioning a driving force receiving portion of a coupling memberCANON KK·Filed 2018·Granted Jul 14, 2020·2 cites·21 claims
- 1690US10698361B2Process cartridge having a coupling member and a coupling member supporting portionCANON KK·Filed 2018·Granted Jun 30, 2020·2 cites·40 claims
- 1790US10281873B2Developing device, process cartridge, and image forming apparatusCANON KK·Filed 2018·Granted May 7, 2019·4 cites·10 claims
- 1885US12321130B2Cartridge, process cartridge, and image forming apparatusCANON KK·Filed 2023·Granted Jun 3, 2025·0 cites·9 claims
- 1985US10114336B2Cartridge mountable to image forming apparatusCANON KK·Filed 2017·Granted Oct 30, 2018·2 cites·14 claims
- 2085US9625852B2Cleaning unit, process cartridge and image forming apparatusCANON KK·Filed 2016·Granted Apr 18, 2017·2 cites·16 claims
- 2184US12298703B2Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2024·Granted May 13, 2025·0 cites·8 claims
- 2284US11664158B2Method of manufacturing coil for torque sensorPROTERIAL LTD·Filed 2020·Granted May 30, 2023·1 cites·12 claims
- 2384US10025268B2Image 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
- 2484US4021205ASintered powdered ferrous alloy article and process for producing the alloy articleTEIKOKU PISTON RING CO LTD·Filed 1976·Granted May 3, 1977·29 cites·7 claims
- 2584US2025237994A1Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2025·Application pending·0 cites
- 2683US10101688B2Gear unit, developing device, and manufacturing method thereforCANON KK·Filed 2016·Granted Oct 16, 2018·2 cites·24 claims
- 2781US12045004B2Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2023·Granted Jul 23, 2024·0 cites·15 claims
- 2881US11709455B2Cartridge, process cartridge, and image forming apparatusCANON KK·Filed 2022·Granted Jul 25, 2023·0 cites·16 claims
- 2980US9304444B2Cleaning unit, process cartridge and image forming apparatusCANON KK·Filed 2013·Granted Apr 5, 2016·2 cites·26 claims
- 3080US2024319665A1Process unit including first and second resin materials and image forming apparatusCANON KK·Filed 2024·Application pending·0 cites
- 3179US10955794B2Cartridge and remanufacturing method of cartridgeCANON KK·Filed 2020·Granted Mar 23, 2021·1 cites·11 claims
- 3279US10656593B2Cartridge, process cartridge, and image forming apparatusCANON KK·Filed 2019·Granted May 19, 2020·0 cites·21 claims
- 3378US12038717B2Process unit including first and second resin materials and image forming apparatusCANON KK·Filed 2022·Granted Jul 16, 2024·0 cites·38 claims
- 3478US10975606B2Window regulatorJOHNAN MFG INC·Filed 2019·Granted Apr 13, 2021·5 cites·4 claims
- 3578US10635046B2Cartridge, process cartridge, and image forming apparatusCANON KK·Filed 2019·Granted Apr 28, 2020·0 cites·19 claims
- 3678US9063507B2Development device, process cartridge, and image forming apparatusCANON KK·Filed 2013·Granted Jun 23, 2015·2 cites·11 claims
- 3777US11802635B2Electromagnetic valveNIDEC TOSOK CORP·Filed 2022·Granted Oct 31, 2023·1 cites·14 claims
- 3877US11789401B2Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2022·Granted Oct 17, 2023·0 cites·20 claims
- 3977US10256041B2Polypropylene for film capacitor, biaxially stretched film for film capacitor, film capacitor, and process for producing the samePRIME POLYMER CO LTD·Filed 2016·Granted Apr 9, 2019·2 cites·8 claims
- 4076US11320781B2Cartridge, process cartridge, and image forming apparatusCANON KK·Filed 2020·Granted May 3, 2022·0 cites·10 claims
- 4176US10423117B2Cleaning apparatus and process cartridgeCANON KK·Filed 2017·Granted Sep 24, 2019·1 cites·9 claims
- 4276US2025306530A1Process cartridge and developing cartridgeCANON KK·Filed 2025·Application pending·0 cites
- 4375US10859971B2Cartridge, process cartridge, and image forming apparatusCANON KK·Filed 2020·Granted Dec 8, 2020·0 cites·9 claims
- 4475US4259119ABoride-based refractory materialsAGENCY IND SCIENCE TECHN·Filed 1979·Granted Mar 31, 1981·23 cites·5 claims
- 4574US10416608B2Cartridge, process cartridge, and image forming apparatusCANON KK·Filed 2018·Granted Sep 17, 2019·0 cites·64 claims
- 4674US2025306502A1Developer containerCANON KK·Filed 2025·Application pending·0 cites
- 4773US11520286B2Cartridge and image forming apparatusCANON KK·Filed 2021·Granted Dec 6, 2022·0 cites·20 claims
- 4873US11392079B2Process cartridge and image forming apparatusCANON KK·Filed 2020·Granted Jul 19, 2022·0 cites·11 claims
- 4973USD907700SProcess cartridge for image forming apparatusCANON KK·Filed 2019·Granted Jan 12, 2021·0 cites·1 claims
- 5073US10747172B1Cartridge, process cartridge, and image forming apparatusCANON KK·Filed 2020·Granted Aug 18, 2020·0 cites·19 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →