Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5620610 | Catalyst for treating wastewater, process for producing it, and process for treating wastewater with the catalyst | Tohru Ishii, Kiichiro Mitsui, Kunio Sano, Yusuke Shiota | 1997-04-15 |
| 5399541 | Catalyst for treating wastewater | Tohru Ishii, Kiichiro Mitsui, Kunio Sano, Yusuke Shiota | 1995-03-21 |
| 5374599 | Catalyst for treating wastewater, process for producing it, and process for treating wastewater with the catalyst | Tohru Ishii, Kiichiro Mitsui, Kunio Sano, Yusuke Shiota | 1994-12-20 |