Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679314 | Method for recovering ammonia adsorbent | Atsushi Morii, Osamu Naito, Toshiyuki Onishi, Kouzo Iida | 1997-10-21 |
| 5677254 | Catalyst for purifying an exhaust gas | Shigeru Nojima, Kozo Iida, Norihisa Kobayashi, Atsushi Morii | 1997-10-14 |