Issued Patents 2023
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11719144 | Exhaust gas purification catalyst | Shogo SHIRAKAWA, Masahide Miura, Isao Chinzei, Seiji Nakahigashi, Hiroki NIHASHI +3 more | 2023-08-08 |
| 11643958 | Exhaust gas purification material and exhaust gas purification device | Taizo YOSHINAGA, Shogo SHIRAKAWA, Nobuyuki Takagi, Masahide Miura | 2023-05-09 |
| 11577226 | Exhaust gas purification catalyst | Seiji Nakahigashi, Isao Chinzei, Shogo SHIRAKAWA, Hiromasa Suzuki, Masahide Miura +8 more | 2023-02-14 |