Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4977127 | Catalyst for denitrizing nitrogen oxides contained in waste gases | Hiroaki Rikimaru, Tadao Nakatsuji, Toshikatsu Umaba, Kazuhiko Nagano, Hiromitsu Shimizu | 1990-12-11 |
| 4952381 | Method for denitrizing nitrogen oxides contained in waste gas | Horiaki Rikimaru, Tadao Nakatsuji, Toshikatsu Umaba, Kazuhiko Nagano, Hiromitsu Shimizu +11 more | 1990-08-28 |
| 4859439 | Catalyst and a method for denitrizing nitrogen oxides contained in waste gases | Hiroaki Rikimaru, Tadao Nakatsuji, Toshikatsu Umaba, Kuzuhiko Nagano, Hiromitsu Shimizu | 1989-08-22 |