Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4356092 | Method for treating waste water | Norio Shimizu, Yasunori Masaki | 1982-10-26 |
| 4356268 | Microorganism for treating waste water | Norio Shimizu, Yasunori Masaki | 1982-10-26 |
| 4354936 | Anaerobic digestion process | Masahiko Ishida, Ryoichi Haga | 1982-10-19 |