Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4997801 | Catalyst for hydrotreating hydrocarbons | Yukuaki Mitarai, Naoto Kinbara, Yasuhito Takahashi, Shigeru Sakai | 1991-03-05 |
| 4992403 | Catalysts for hydrotreating hydrocarbons and methods of preparing the same | Yasuhito Takahashi, Shigeru Sakai | 1991-02-12 |