Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6797184 | Catalyst for treating waste water, method for preparing the same and process for treating waste water | Kuninori Miyazaki, Takaaki Hashimoto, Tohru Ishii | 2004-09-28 |
| 6730215 | Apparatus for treating waste water | Tohru Ishii, Kiichiro Mitsui | 2004-05-04 |