Issued Patents 2023
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11801492 | Exhaust gas purification catalyst | Isao Chinzei, Takumi Tojo, Yoshiteru Yazawa | 2023-10-31 |
| 11795855 | Exhaust gas purification catalyst | Isao Chinzei, Shogo SHIRAKAWA, Masahide Miura, Hiromasa Suzuki, Yuki Kido +3 more | 2023-10-24 |
| 11725556 | Exhaust gas purification catalyst | Isao Chinzei, Takumi Tojo, Yosuke TODA, Hirotaka Ori, Minoru Ito +1 more | 2023-08-15 |
| 11577226 | Exhaust gas purification catalyst | Seiji Nakahigashi, Isao Chinzei, Shogo SHIRAKAWA, Hiromasa Suzuki, Masahide Miura +8 more | 2023-02-14 |