KO

Koichi Ooishi

Canon: 2 patents #666 of 3,631Top 20%
Overall (2022): #138,174 of 548,613Top 30%
2
Patents 2022

Issued Patents 2022

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11493878 Cartridge including photosensitive drum and developing roller that can be easily separated Toshiaki Takeuchi, Hiroki Shimizu 2022-11-08
11372348 Developing device, cartridge, image forming apparatus Harunobu Maeda, Masahito Kato, Kodai Hayashi, Takuya Oka, Yu Akiba +3 more 2022-06-28