Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11719144 | Exhaust gas purification catalyst | Norimichi Shimano, Shogo SHIRAKAWA, Masahide Miura, Isao Chinzei, Seiji Nakahigashi +3 more | 2023-08-08 |
| 11577226 | Exhaust gas purification catalyst | Seiji Nakahigashi, Isao Chinzei, Shogo SHIRAKAWA, Hiromasa Suzuki, Masahide Miura +8 more | 2023-02-14 |