Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824684 | Wastewater treatment method and apparatus | Kazumi Chujo | 2004-11-30 |
| 6776903 | System for waste water treatment capable of saving energy and reducing suspended solids | Kazumi Chujo | 2004-08-17 |
| 6743353 | Method and apparatus for neutralizing alkaline wastewater without using mineral acids | Kazumi Chujo | 2004-06-01 |