Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6843470 | Air diffuser and flushing method thereof | Yasunobu Okajima, Masaaki Nagano, Kiyoshi Izumi | 2005-01-18 |
| 6843908 | Multistage immersion type membrane separator and high-concentration wastewater treatment facility using same | Yasunobu Okajima, Masaaki Nagano, Kiyoshi Izumi, Yutaka Yamada, Taichi Uesaka | 2005-01-18 |