Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12360493 | Developing cartridge | Keita Shimizu | 2025-07-15 |
| 12164245 | Cartridge having detachable cap to cover opening of casing for replenishing toner into storage bag accommodated in casing | Nao Itabashi, Masahiko Hayakawa, Sakiho HAYAKAWA, Hotaka Kakutani, Shintaro Fukuoka +1 more | 2024-12-10 |
| 11982973 | Developing cartridge | Keita Shimizu | 2024-05-14 |