Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9981475 | Ink supply apparatus and ink jet recording apparatus | Shigeru Watanabe, Kouhei Tokuda, Tsutomu Obata, Naoaki Wada, Eiichi Adachi +4 more | 2018-05-29 |
| 9278543 | Inkjet recording apparatus | Eiichi Adachi, Shigeru Watanabe, Naoaki Wada, Kouhei Tokuda, Tsutomu Obata | 2016-03-08 |