Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11179944 | Ink refill container, ink refill system, and ink refill adapter | Tadahiro Mizutani, Ryoichi Tanaka, Manabu Akahane, Makoto Kobayashi, Naomi Kimura +3 more | 2021-11-23 |
| 10889123 | Ink refill container, ink refill system, and ink refill adapter | Tadahiro Mizutani, Ryoichi Tanaka, Manabu Akahane, Makoto Kobayashi, Naomi Kimura +3 more | 2021-01-12 |