Issued Patents 2021
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11192380 | Ink bottle and bottle set | Taku Ishizawa, Ryoichi Tanaka, Manabu Akahane, Koichi Toba, Takumi Nagashima +3 more | 2021-12-07 |
| 11179944 | Ink refill container, ink refill system, and ink refill adapter | Ryoichi Tanaka, Manabu Akahane, Makoto Kobayashi, Naomi Kimura, Hideki Okumura +3 more | 2021-11-23 |
| 11117379 | Ink replenish container | Noriyuki Fukasawa, Taku Ishizawa, Tadashi Watanabe, Ryoichi Tanaka | 2021-09-14 |
| 11097549 | Liquid container | Takumi Nagashima, Hiroyuki Kawate, Yoshiaki Shimizu, Akihiro Toya, Tetsuya Takamoto +2 more | 2021-08-24 |
| 11072180 | Ink tank | Taku Ishizawa, Noriyuki Fukasawa, Hideki Okumura, Naomi Kimura | 2021-07-27 |
| 11065879 | Ink refill container and ink refill system | Ryoichi Tanaka, Taku Ishizawa | 2021-07-20 |
| 11059299 | Ink replenishing container and ink replenishing system | Taku Ishizawa | 2021-07-13 |
| 11052668 | Liquid container | Seigo MIYAZAWA, Taku Ishizawa | 2021-07-06 |
| 11007787 | Ink refill container and ink refill system | Taku Ishizawa, Noriyuki Fukasawa, Naomi Kimura, Shoma Kudo, Manabu Akahane | 2021-05-18 |
| 11001068 | Ink replenish container | Noriyuki Fukasawa, Taku Ishizawa, Tadashi Watanabe, Ryoichi Tanaka | 2021-05-11 |
| 10974512 | Ink replenishing container and ink replenishing system | Taku Ishizawa | 2021-04-13 |
| 10889123 | Ink refill container, ink refill system, and ink refill adapter | Ryoichi Tanaka, Manabu Akahane, Makoto Kobayashi, Naomi Kimura, Hideki Okumura +3 more | 2021-01-12 |