Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5304308 | Control method in double-tank-type intermittent aeration activated sludge process | Kazushi Tsumura, Yasuji Yamamoto, Shigeru Hatsumata | 1994-04-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5304308 | Control method in double-tank-type intermittent aeration activated sludge process | Kazushi Tsumura, Yasuji Yamamoto, Shigeru Hatsumata | 1994-04-19 |