Inventor · disambiguated record
Naohiro Kawashima
Also filed as: KAWASHIMA NAOHIRO
13 granted patents·1 pending application·9 citations·filing 2015–2023
83Inventor score
Technology areasG03G
Top patents by PatentIndex Score
14 records- 0192US11366410B2Developer container, developing device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2021·Granted Jun 21, 2022·2 cites·16 claims
- 0290US9817335B2Powder amount detector, powder supply device, and image forming apparatus incorporating sameKAWASHIMA NAOHIRO·Filed 2016·Granted Nov 14, 2017·6 cites·20 claims
- 0374US11086251B2Image forming apparatus including control circuitry to execute a warm-up operationMASE RYUSUKE·Filed 2019·Granted Aug 10, 2021·1 cites·8 claims
- 0473US11726418B2Developer container, developing device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2022·Granted Aug 15, 2023·0 cites·17 claims
- 0563US12216418B2Powder conveyance device and image forming apparatus including a conveyor and first and second conveyance tubesKAWASHIMA NAOHIRO·Filed 2023·Granted Feb 4, 2025·0 cites·18 claims
- 0662US11112731B2Developer container, developing device, and image forming apparatusRICOH CO LTD·Filed 2019·Granted Sep 7, 2021·0 cites·20 claims
- 0758US11454897B2Developing device and image forming apparatus containing regulated bearingRICOH CO LTD·Filed 2021·Granted Sep 27, 2022·0 cites·15 claims
- 0855US11256194B2Developing device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2020·Granted Feb 22, 2022·0 cites·15 claims
- 0954US10705484B2Developing device, process cartridge, and image forming apparatusOSHIKAWA YUKI·Filed 2019·Granted Jul 7, 2020·0 cites·10 claims
- 1050US11275325B2Image forming apparatus including a process cartridge that includes a developing deviceRICOH CO LTD·Filed 2020·Granted Mar 15, 2022·0 cites·18 claims
- 1147US10317814B2Powder supply device and image forming apparatus incorporating sameRICOH CO LTD·Filed 2016·Granted Jun 11, 2019·0 cites·18 claims
- 1244US9897938B2Developing device and image forming apparatus incorporating sameKOSHIZUKA SHINNOSUKE·Filed 2016·Granted Feb 20, 2018·0 cites·10 claims
- 1343US10007209B2Developing device and image forming apparatus incorporating same that reduce low-flow regions of toner within the developing deviceKOSHIZUKA SHINNOSUKE·Filed 2017·Granted Jun 26, 2018·0 cites·14 claims
- 1431US2016195846A1Developing device and image forming apparatus incorporating sameKOSHIZUKA SHINNOSUKE·Filed 2015·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Naohiro Kawashima files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →