Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5281717 | Epoxysuccinamic acid derivatives | Shigeyuki Sumiya, Chihiro Yokoo, Katsuo Hatayama | 1994-01-25 |
| 5068354 | Epoxysuccinic acid derivatives | Chihiro Yokoo, Kazunori Hanada | 1991-11-26 |
| 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 |
| 4699981 | Cephalosporin derivatives | Yoshiaki Watanabe, Chihiro Yokoo, Masami Goi, Akira Onodera, Hiroshi Fukushima +1 more | 1987-10-13 |