Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888417 | Therapeutic and prophylactic agents for peptic ulcer | Yusei Shiraga, Chikara Fukaya, Toshiaki Akira, Masakazu Iwai, Kazumasa Yokoyama +5 more | 1989-12-19 |
| 4822872 | Method of purifying factor VIII | Syojyu Kameyama, Hideo Nishimaki, Tadakazu Suyama | 1989-04-18 |