Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6800265 | Method for treating a gas containing a boric acid component | Hachiro Hirano, Kazutaka Ohtsuka, Itsuo Mochizuki | 2004-10-05 |
| 6790421 | Method for treating exhaust gas containing fluorine-containing compound | — | 2004-09-14 |
| 6780385 | Method for treating a gas | Shigeru Sakurai, Hachiro Hirano, Makoto Yoshida, Hiroaki Noda | 2004-08-24 |
| 6764666 | Process for treating gas containing fluorine-containing compounds and CO | — | 2004-07-20 |
| 6685901 | Method for removing a halogen series gas | Hachiro Hirano, Yoshikatsu Kawabe | 2004-02-03 |