Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839350 | Cephalosporin compounds and the production thereof | Kunio Atsumi, Kenji Sakagami, Yuichi Yamamoto, Ken Nishihata, Shinichi Kondo +1 more | 1989-06-13 |
| 4810702 | Antibacterial agent for mammal use comprising cephalosporin derivatives as an effective ingredient | Seiji Shibahara, Tsuneo Okonogi, Yasushi Murai, Toshiaki Kudo, Ken Nishihata +1 more | 1989-03-07 |