Issued Patents 2021
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11192380 | Ink bottle and bottle set | Taku Ishizawa, Tadahiro Mizutani, Manabu Akahane, Koichi Toba, Takumi Nagashima +3 more | 2021-12-07 |
| 11179944 | Ink refill container, ink refill system, and ink refill adapter | Tadahiro Mizutani, Manabu Akahane, Makoto Kobayashi, Naomi Kimura, Hideki Okumura +3 more | 2021-11-23 |
| 11117379 | Ink replenish container | Noriyuki Fukasawa, Taku Ishizawa, Tadashi Watanabe, Tadahiro Mizutani | 2021-09-14 |
| 11065879 | Ink refill container and ink refill system | Tadahiro Mizutani, Taku Ishizawa | 2021-07-20 |
| 11001068 | Ink replenish container | Noriyuki Fukasawa, Taku Ishizawa, Tadashi Watanabe, Tadahiro Mizutani | 2021-05-11 |
| 10889123 | Ink refill container, ink refill system, and ink refill adapter | Tadahiro Mizutani, Manabu Akahane, Makoto Kobayashi, Naomi Kimura, Hideki Okumura +3 more | 2021-01-12 |