Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5270024 | Process for reducing nitrogen oxides from exhaust gas | Senshi Kasahara, Kazushige Igawa, Shinichi Matsumoto, Masayuki Fukui, Tadashi Suzuki +5 more | 1993-12-14 |
| 5110777 | Copper-containing zeolites and their preparation | Kazushige Igawa | 1992-05-05 |
| 4999173 | Removal of nitric oxides by copper-containing zeolites | Kazushige Igawa | 1991-03-12 |