Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4302205 | Input control method and means for nitrogen oxide removal | Ryoji Muraki, Tetsuo Ai, Takaaki Kawasaki | 1981-11-24 |
| 4188190 | Input control method and means for nitrogen oxide removal means | Ryoji Muraki, Yoshio Ohashi, Athushi Ichioka | 1980-02-12 |