Issued Patents 2023
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11667123 | Ink refill container and ink refill system | Tadahiro Mizutani, Taku Ishizawa, Noriyuki Fukasawa, Naomi Kimura, Shoma Kudo | 2023-06-06 |
| 11639060 | Ink refill container, ink refill system, and ink refill adapter | Tadahiro Mizutani, Ryoichi Tanaka, Makoto Kobayashi, Naomi Kimura, Hideki Okumura +3 more | 2023-05-02 |
| 11597207 | Ink bottle and bottle set | Taku Ishizawa, Tadahiro Mizutani, Ryoichi Tanaka, Koichi Toba, Takumi Nagashima +3 more | 2023-03-07 |
| 11541662 | Ink refill container and ink refill system | Tadahiro Mizutani, Taku Ishizawa, Noriyuki Fukasawa, Naomi Kimura, Shoma Kudo | 2023-01-03 |