Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4371440 | Method of treating a waste water rich in protein | Kiyoshi Yoshizawa, Kenichi Otsuka, Kikuo Nojiro, Takeo Koizumi, Seiji Nakamura | 1983-02-01 |
| 4183807 | Treatment of waste water rich in nutrients | Kiyoshi Yoshizawa, Kikuo Nojiro, Hiroshi Hashimoto, Akira Noguchi, Kazuo Tanno | 1980-01-15 |