Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612372 | Tylosin derivatives | Takeo Yoshioka, Miharu Maeda, Rokuro Okamoto, Tomoyuki Ishikura, Tsutomu Sawa +2 more | 1986-09-16 |
| 4517127 | .beta.-Lactam derivatives and process for production thereof | Takeo Yoshioka, Kenichi Yamamoto, Yasuo Fukagawa, Tomoyuki Ishikura | 1985-05-14 |
| 4418192 | Anthracyclinone trisaccharide compounds | Hiroshi Tanaka, Takeo Yoshioka, Toshikazu Oki, Tomoyuki Ishikura, Tomio Takeuchi +1 more | 1983-11-29 |
| 4368203 | Antibiotics and derivatives thereof having .beta.-lactamase inhibitory activity and production thereof | Kazuhiko Okamura, Shoji Hirata, Yasushi Okumura, Yasuo Fukagawa, Tomoyuki Ishikura +2 more | 1983-01-11 |
| 4337199 | Antibiotic .beta.-lactam compounds, production thereof, and their use as antimicrobial agent | Takeo Yoshioka, Kenichi Yamamoto, Kaoru Yamada, Yasuyuki Kato, Tomoyuki Ishikura | 1982-06-29 |
| 4318916 | Antibiotic PS-5 and derivatives having .beta.-lactamase inhibitory activity and production thereof | Kazuhiko Okamura, Shoji Hirata, Yasushi Okumura, Yasuo Fukagawa, Tomoyuki Ishikura +2 more | 1982-03-09 |