Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11686231 | LNT layered catalyst for lean burn gasoline engine and exhaust gas purification apparatus using the same | Isao Tan, Shunsuke Fukutomi, Takehiro Fujimura, Shuya Omata | 2023-06-27 |
| 11598238 | Exhaust gas purification device | — | 2023-03-07 |
| 11352933 | Exhaust gas purification device | Isao Tan | 2022-06-07 |
| 11208930 | Exhaust gas purification apparatus | Isao Tan | 2021-12-28 |
| 10118156 | Exhaust gas purification device | Keiji Horaguchi, Makoto Tsuji, Hiroto Imai, Hiroto Yoshida, Takeshi Nobukawa | 2018-11-06 |
| 9522385 | Exhaust gas purifying catalyst | Makoto Tsuji, Hiroto Imai, Keisuke Kishita, Daisuke Ochiai | 2016-12-20 |