Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12377658 | Cap and cartridge unit | Tadahiro Mizutani, Yoshihiro Koizumi, Shun Oya, Takumi Nagashima | 2025-08-05 |
| 12240244 | Cartridge and printing system | Yoshihiro Koizumi, Shun Oya, Takumi Nagashima | 2025-03-04 |
| D1061705 | Ink cartridge | Takumi Nagashima, Yoshihiro Koizumi, Tadahiro Mizutani, Shun Oya | 2025-02-11 |
| 11807015 | Cartridge | Takumi Nagashima, Yoshihiro Koizumi, Shun Oya | 2023-11-07 |