Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10005977 | Method of producing modified coal, and modified coal | Atsushi Furuya, Yoichi Takahashi, Toru HIGUCHI, Seiichi Yamamoto, Hiroki Watanabe +1 more | 2018-06-26 |
| 9994783 | Method for producing modified coal, and modified coal | Seiichi Yamamoto, Naoto Watanabe | 2018-06-12 |
| 9856428 | Method for storing upgraded coal, and grain-size-controlled coal | Motoharu Murota, Seiichi Yamamoto, Yoichi Takahashi, Naoto Watanabe | 2018-01-02 |