Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11918986 | Exhaust gas purification device | Koji Sugiura, Takeshi Hirabayashi, Keisuke Murawaki, Takaya Ota, Masatoshi Ikebe +2 more | 2024-03-05 |
| 11679379 | Exhaust gas purification device | Koji Sugiura, Takeshi Hirabayashi, Keisuke Murawaki, Takaya Ota, Masatoshi Ikebe +2 more | 2023-06-20 |
| 11473472 | Exhaust gas control apparatus and manufacturing method thereof | Koji Sugiura, Hiromasa Nishioka, Naoto Miyoshi, Keisuke Murawaki, Masatoshi Ikebe +3 more | 2022-10-18 |
| 8551908 | Exhaust gas purification catalyst | Masahiko Takeuchi, Keizo Hiraku, Yusuke Kawamura, Takahiro Fujiwara, Tadashi Suzuki +1 more | 2013-10-08 |