Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11066612 | Biomass gasification device | Naoki Dowaki, Mitsuo Kameyama | 2021-07-20 |
| 9534180 | Biomass gasifier device | Naoki Dowaki, Kiyoshi Dowaki, Yasuie Takeda, Hiroshi Ikeda, Kousuke Suda +2 more | 2017-01-03 |