Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4320196 | Semi-synthesis of human insulin | Tatsushi Oka, Hiroshige Tsuzuki | 1982-03-16 |
| 4320197 | Semi-synthesis of human insulin | Tatsushi Oka, Masami Soejima, Takeharu Masaki | 1982-03-16 |