Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5582809 | Catalyst and method for denitrization of nitrogen oxides | Toshikatsu Umaba, Yoshiyuki Yoshikawa | 1996-12-10 |
| 4977127 | Catalyst for denitrizing nitrogen oxides contained in waste gases | Tadao Nakatsuji, Toshikatsu Umaba, Kazuhiko Nagano, Kazuya Mishina, Hiromitsu Shimizu | 1990-12-11 |
| 4869735 | Adsorbent for arsenic compound and method for removing arsenic compound from combustion gas | Masaki Miyazawa, Norihisa Kobayashi, Hiromu Takatsuka, Atsushi Morii, Toshio Koyanagi +9 more | 1989-09-26 |
| 4859439 | Catalyst and a method for denitrizing nitrogen oxides contained in waste gases | Tadao Nakatsuji, Toshikatsu Umaba, Kuzuhiko Nagano, Kazuya Mishina, Hiromitsu Shimizu | 1989-08-22 |
| 4643984 | Process for producing a composition which includes perovskite compounds | Kazunobu Abe, Masashi Aoki, Takeshi Ito, Kazuhisa Hidaka, Kayoko Segawa | 1987-02-17 |