Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11499456 | Exhaust purification device and exhaust purification method | Naoto Murasawa, Akio Nishikata, Masahiro Kajiyama | 2022-11-15 |
| 8932379 | Exhaust gas purification system | Takashi Ikeda, Hiroyuki Ishikawa | 2015-01-13 |
| 8925306 | Exhaust gas purification system for high altitude use | Takashi Ikeda, Tetsuya Asami | 2015-01-06 |