Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9815707 | Method of processing discharge gas discharged from production process | Kansei Izaki, Masanori Iwaki, Toshio Akiyama | 2017-11-14 |
| 6331281 | Process and apparatus for cleaning exhaust gas | Suehachi Teru, Noboru Akita, Kenji Otsuka, Takashi Shimada | 2001-12-18 |
| 6261345 | Process and apparatus for recovering ammonia | Kenji Otsuka, Satoshi Arakawa | 2001-07-17 |