Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6500951 | Process for preparing pyridazin-3-on derivatives | Masao Yanagawa, Yoshiaki Oda | 2002-12-31 |
| 6348617 | Method for purifying pyruvic acid compounds | Hideki Ushio, Motoo Hazama, Toshikazu Yagi, Akihiko Nakamura | 2002-02-19 |