Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4948736 | Continuous microorganism cultivating apparatus | Takeshi Kobayashi, Masayuki Taniguchi, Shunji Yasuda | 1990-08-14 |
| 4861471 | Activated sludge treatment apparatus | Shinichi Nakao, Shunji Yasuda | 1989-08-29 |