Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11318441 | Hydrogen chloride removing agent | Naoki Dowaki, Mitsuo Kameyama | 2022-05-03 |
| 11273405 | Method for recovering hydrogen from biomass pyrolysis gas | Noboru Katayama, Naoki Dowaki, Mitsuo Kameyama | 2022-03-15 |
| 10722836 | Hydrogen recovery method | Naoki Dowaki, Mitsuo Kameyama | 2020-07-28 |
| 9534180 | Biomass gasifier device | Naoki Dowaki, Yasuie Takeda, Hiroshi Ikeda, Kousuke Suda, Fumie Kagaya +2 more | 2017-01-03 |