Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6638489 | Cleaning process and cleaning agent for harmful gas | Yukichi Takamatsu, Youji Nawa, Kazuaki Tonari | 2003-10-28 |
| 6579509 | Method of cleaning of harmful gas and cleaning apparatus | Naoki Muranaga, Satoshi Arakawa, Tomohisa Ikeda | 2003-06-17 |