Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6084144 | Method of recovering boron trifluoride complex and process for producing olefin oligomer using the same | Tsutomu Takashima, Shigeru Nishikida, Yuichi Tokumoto, Kouji Fujimura | 2000-07-04 |
| 5846429 | Method for separating and recovering boron trifluoride | Isoo Shimizu, Tsutomu Takashima | 1998-12-08 |