Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5344644 | Water-soluble composition for sustained-release | Yasutaka Igari, Minoru Yamada | 1994-09-06 |
| 5304377 | Prolonged release preparation and polymers thereof | Minoru Yamada, Yasuaki Ogawa | 1994-04-19 |