Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6174432 | Hydrotreating catalyst for heavy hydrocarbon oil, process for producing the catalyst, and hydrotreating method using the same | Yoshihiro Mizutani, Yukio Shibata, Yasuo Yamamoto | 2001-01-16 |