Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821430 | Method of treating reverse osmosis membrane element, and reverse osmosis membrane module | Masaaki Andou, Terutaka Watanabe, Masahiko Hirose, Hisao Hachisuka, Craig R. Bartels +1 more | 2004-11-23 |
| 6805796 | Water treatment apparatus | Masahiko Hirose, Atsushi Hiro | 2004-10-19 |