Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612276 | Adsorbents for removing low-concentration nitrogen oxides | Shigenori Onitsuka, Masayoshi Ichiki, Takanobu Watanabe, Atsushi Fukuju, Masaki Akiyama +2 more | 1997-03-18 |