Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4556651 | Secalonic acid derivatives as antitumor agents | Mitsuru Shibukawa, Chisei Shibuya | 1985-12-03 |
| 4418061 | Secalonic acid derivatives and method for preparing thereof | Mitsuru Shibukawa, Chisei Shibuya | 1983-11-29 |
| 4314059 | Process for preparing cephalosporin compounds | Chisei Shibuya, Takumi SANO, Torao Ishida | 1982-02-02 |
| 4258195 | Novel thiol esters and process for preparing cephalosporin compounds using same | Chisei Shibuya, Takumi SANO, Torao Ishida | 1981-03-24 |
| 4229573 | 7.alpha.-Methoxycephalosporin derivatives | Chisei Shibuya, Hirataka Itoh, Torao Ishida, Mitsuru Shibukawa | 1980-10-21 |