Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7326279 | Method for removing harmful substance in vent gas | Yasuo Nakazawa, Kensuke Suda, Akira Sekiya | 2008-02-05 |
| 5906797 | Treatment of NF.sub.3 -containing gases | Ituo Orihara, Eisaku Mogi, Shiro Yamashita | 1999-05-25 |
| 5879646 | Treatment of NH.sub.3 -containing gases | Ithuo Orihara, Eisaku Mogi, Shiro Yamashita | 1999-03-09 |