Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5629456 | Method of preparing a fluorene derivative and the method of purifying thereof | Katsuhide Okimi, Katsuyuki Takahashi, Norio Nagano | 1997-05-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5629456 | Method of preparing a fluorene derivative and the method of purifying thereof | Katsuhide Okimi, Katsuyuki Takahashi, Norio Nagano | 1997-05-13 |