Inventor · disambiguated record
Koichi Ooishi
Also filed as: OOISHI KOICHI
8 granted patents·2 pending applications·13 citations·filing 2019–2025
80Inventor score
Technology areasG03G
Files withCANON KK10
Top patents by PatentIndex Score
10 records- 0195US11188021B2Cartridge 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
- 0294US11372348B2Developing device, cartridge, image forming apparatusCANON KK·Filed 2020·Granted Jun 28, 2022·4 cites·40 claims
- 0392US11493878B2Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2021·Granted Nov 8, 2022·2 cites·18 claims
- 0488US10928751B2Remanufacturing method for developing apparatus and cartridgeCANON KK·Filed 2019·Granted Feb 23, 2021·3 cites·24 claims
- 0584US12298703B2Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2024·Granted May 13, 2025·0 cites·8 claims
- 0684US2025237994A1Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2025·Application pending·0 cites
- 0781US12045004B2Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2023·Granted Jul 23, 2024·0 cites·15 claims
- 0877US11789401B2Cartridge including photosensitive drum and developing roller that can be easily separatedCANON KK·Filed 2022·Granted Oct 17, 2023·0 cites·20 claims
- 0969US11835888B2Developing device, cartridge, image forming apparatusCANON KK·Filed 2022·Granted Dec 5, 2023·0 cites·11 claims
- 1045US2020073288A1Remanufacturing methodCANON KK·Filed 2019·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →