Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859439 | Catalyst and a method for denitrizing nitrogen oxides contained in waste gases | Hiroaki Rikimaru, Tadao Nakatsuji, Kuzuhiko Nagano, Kazuya Mishina, Hiromitsu Shimizu | 1989-08-22 |