Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5094993 | Hydrotreating catalysts | Tadashi Miura, Hiroshi Kaya, Shohei Okano, Takuji Itoh | 1992-03-10 |
| 4837193 | Hydrotreating catalyst and process of manufacture | Hiroshi Kaya, Shohei Okano, Nobuo Otake, Keiji Kumagai, Yoshihito Kaneko | 1989-06-06 |