Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5330767 | Sustained release microcapsule | Masaki Yamamoto, Shigeyuki Takada | 1994-07-19 |
| 5304377 | Prolonged release preparation and polymers thereof | Minoru Yamada, Seiko Ishiguro | 1994-04-19 |