Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5284717 | Method for producing raw materials for a reformer by cracking and desulfurizing petroleum fuels | Osamu Yamase, Hajime Kubota | 1994-02-08 |
| 5149600 | Fuel cell electricity generation process | Osamu Yamase, Sumio Yoshizawa | 1992-09-22 |