Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822888 | New cepham compounds and processes for the production thereof | Takao Takaya, Hisashi Takasugi, Toshiyuki Chiba | 1989-04-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822888 | New cepham compounds and processes for the production thereof | Takao Takaya, Hisashi Takasugi, Toshiyuki Chiba | 1989-04-18 |