Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488906 | Method for removing nitrogen oxides in exhaust gas | Kiyomi Arakawa | 2002-12-03 |
| 6374635 | PFC gas recovery process and apparatus | Junichi Hayakawa, Tetsuo Komai | 2002-04-23 |