Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12330133 | Exhaust gas purifying composition and production method therefor | Hidekazu Goto, Jo Nishikawa | 2025-06-17 |
| 12330134 | Hydrocarbon adsorbent | Hidekazu Goto | 2025-06-17 |
| 8221688 | Exhaust gas purification device for internal combustion engine | Koichi Taniyama, Hiroshi Tanada | 2012-07-17 |