Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8778297 | Sulfur recovery unit and sulfur recovery method | Tatsuo Kamisuki, Hiroyuki Kosasayama, Yasushi Yamada, Shingo Arai | 2014-07-15 |
| 6962680 | Method and apparatus for removing sulfur compound in gas containing hydrogen sulfide, mercaptans, carbon dioxide and aromatic hydrocarbon | Shinya Ishigaki, Takashi Sasaki | 2005-11-08 |