Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6406615 | Hydrotreating process for residual oil | Takao Nozaki | 2002-06-18 |
| 6398950 | Hydrogenation catalyst and method of hydrogenating heavy oil | Takao Nozaki, Kei Uchikawa | 2002-06-04 |