Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885367 | Sulfonanilide compounds | Kensei Yoshikawa, Yutaka Ohuchi, Kazuto Sekiuchi, Shiuji Saito, Kaoru Sota | 1989-12-05 |
| 4883876 | Acylated vincaminic acid derivatives | Shin-ichi Nakatsuka, Masatoshi Hayashi, Sadakazu Yokomori, Yoshimoto Nakashima, Hiroaki Araki | 1989-11-28 |