Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885367 | Sulfonanilide compounds | Kensei Yoshikawa, Yutaka Ohuchi, Kazuto Sekiuchi, Shiuji Saito, Katsuo Hatayama | 1989-12-05 |
| 4861765 | 21-alkyl-, cycloalkyl- or aryl-substituted thio steroids and pharmaceutical compositions containing them | Morihiro Mitsukuchi, Tomoyuki Ikemoto, Yoshiaki Watanabe | 1989-08-29 |
| 4841044 | Cephalosporin derivatives | Yoshiaki Watanabe, Chihiro Yokoo, Masami Goi, Akira Onodera, Mitsuo Murata +2 more | 1989-06-20 |
| 4833236 | Erythromycin derivatives | Shigeo Morimoto, Yoko Takahashi, Yoshiaki Watanabe, Takashi Adachi, Toshifumi Asaka | 1989-05-23 |
| 4812562 | Cephalosporin derivatives | Yoshiaki Watanabe, Chihiro Yokoo, Masami Goi, Akira Onodera, Mitsuo Murata +1 more | 1989-03-14 |
| 4803266 | 3-Oxoalkylidene-2-azetidinone derivatives | Yutaka Kawashima, Masakazu Satoh, Yuichi Hatada, Fumiko Hazato, Yoshimoto Nakashima | 1989-02-07 |