Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4454038 | Apparatus for biological treatment of waste water in downflow operation | Yoshinori Yushina, Hiroshi Kamata, Hideo Komatsu, Akinori Kurima, Osamu Mabu +1 more | 1984-06-12 |
| 4256573 | Process for biological treatment of waste water in downflow operation | Yoshinori Yushina, Hiroshi Kamata, Hideo Komatsu, Akinori Kurima, Osamu Mabu +1 more | 1981-03-17 |