KO

Koichi Ooishi

Canon: 1 patents #1,068 of 2,977Top 40%
Overall (2025): #313,458 of 469,880Top 70%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12298703 Cartridge including photosensitive drum and developing roller that can be easily separated Toshiaki Takeuchi, Hiroki Shimizu 2025-05-13