Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10843115 | Method of removing impurities | Takao Kameda, Noboru Takei, Kazuya Kumagai, Sosuke Kido | 2020-11-24 |
| 9884288 | Treatment process of gas containing zero-valent mercury and mercury separation system | Dai Takeda, Eiji Awai, Jun Matsumoto, Hironobu Marukawa | 2018-02-06 |
| 9687781 | Desulfurization method and device for sulfuric acid production device | Kazushige Kawamura, Dai Takeda, Eiji Awai, Noboru Takei | 2017-06-27 |