KO

Koichi Ooishi

Canon: 2 patents #719 of 3,719Top 20%
Overall (2023): #135,229 of 537,848Top 30%
2
Patents 2023

Issued Patents 2023

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11835888 Developing device, cartridge, image forming apparatus Harunobu Maeda, Masahito Kato, Kodai Hayashi, Takuya Oka, Yu Akiba +3 more 2023-12-05
11789401 Cartridge including photosensitive drum and developing roller that can be easily separated Toshiaki Takeuchi, Hiroki Shimizu 2023-10-17