Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5424422 | Beta-lactams and their production | Makoto Sunagawa, Akira Sasaki | 1995-06-13 |
| 5310897 | Beta-lactams and their production | Makoto Sunagawa, Akira Sasaki | 1994-05-10 |
| 4556514 | 4-Carboxy azetidinone compounds and production thereof from diketene and a Schiff base | Makoto Sunagawa, Masao Enomoto, Akira Sasaki | 1985-12-03 |