Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648548 | Optically active asymmetric diphosphine and process for producing optically active substance in its presence | Tetsuo Ota, Koji Inagaki | 1997-07-15 |
| 5631345 | Process for producing optically active polyketone | Kyoko Tamao, Naomasa Sato | 1997-05-20 |