Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6306289 | Catalyst for hydrogenation treatment and method for hydrogenation treatment of hydrocarbon oil | Fumitaka Hayashi, Hiroshi Toshima | 2001-10-23 |
| 5944983 | Hydrotreating catalyst and hydrotreating process of hydrocarbon oil by using the same | Fumitaka Hayashi, Hiroshi Toshima, Akira Saiai | 1999-08-31 |