Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841044 | Cephalosporin derivatives | Yoshiaki Watanabe, Chihiro Yokoo, Masami Goi, Akira Onodera, Hiroshi Fukushima +2 more | 1989-06-20 |
| 4812562 | Cephalosporin derivatives | Yoshiaki Watanabe, Chihiro Yokoo, Masami Goi, Akira Onodera, Hiroshi Fukushima +1 more | 1989-03-14 |