Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4937332 | Cephalosporin derivatives | Chihiro Yokoo, Hiroshi Fukushima, Yoshiaki Watanabe, Kaoru Sota | 1990-06-26 |
| 4921953 | Cephalosporin derivatives | Chihiro Yokoo, Hiroshi Fukushima, Yoshiaki Watanabe, Kaoru Sota | 1990-05-01 |
| 4841044 | Cephalosporin derivatives | Yoshiaki Watanabe, Chihiro Yokoo, Masami Goi, Mitsuo Murata, Hiroshi Fukushima +2 more | 1989-06-20 |
| 4812562 | Cephalosporin derivatives | Yoshiaki Watanabe, Chihiro Yokoo, Masami Goi, Mitsuo Murata, Hiroshi Fukushima +1 more | 1989-03-14 |
| 4699981 | Cephalosporin derivatives | Yoshiaki Watanabe, Chihiro Yokoo, Masami Goi, Mitsuo Murata, Hiroshi Fukushima +1 more | 1987-10-13 |
| 4357470 | Cephalosporin compounds | Yoshiaki Watanabe, Chihiro Yokoo, Toshifumi Asaka, Kaoru Sota, Jiro Sawada | 1982-11-02 |