Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4613571 | Polyprenyl sulfone derivatives and process for producing the same | Akio Sato, Kenji Nakajima, Yoshimasa Takahara, Shizumasa Kijima, Hideaki Watanabe +1 more | 1986-09-23 |
| 4448775 | 3-Carbamoyloxymethylcephem derivatives, and antibacterial drugs containing same | Shigeto Negi, Yoshimasa Machida, Hiroshi Yamauchi, Isao Saito, Yoshikazu Hasagawa | 1984-05-15 |
| 4449002 | Polyprenyl sulfones | Akio Sato, Kenji Nakajima, Yoshimasa Takahara, Shizumasa Kijima, Hideaki Watanabe +1 more | 1984-05-15 |