Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888332 | Cephalosporin derivatives | Haruo Ohnishi, Hiroshi Kosuzume, Masahiro Mizota, Yasuo Suzuki | 1989-12-19 |
| 4880798 | Cephalosporin derivatives | Kazuo Kato, Kimihiro Murakami, Hidenori Mochizuki | 1989-11-14 |
| 4866055 | Cephalosporin derivatives and their crystalline derivatives | Kazuo Kato, Kimihiro Murakami, Hidenori Mochizuki | 1989-09-12 |
| 4840945 | Cephalosporin derivatives | Haruo Ohnishi, Hiroshi Kosuzume, Masahiro Mizota, Yasuo Suzuki | 1989-06-20 |
| 4839368 | 1-acyl-2,3-dihydro-4(1H)-quinolinone-4-oxime derivatives | Akio Uemura, Kazuo Kato, Hiroki Tokunaga, Akinori Haga | 1989-06-13 |
| 4797258 | Chemical reaction apparatus | — | 1989-01-10 |