Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880809 | 1,4-disubstituted piperazines (or homopiperazines) as platelet-activating factor antagonists | Hirosada Sugihara, Kohei Nishikawa | 1989-11-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880809 | 1,4-disubstituted piperazines (or homopiperazines) as platelet-activating factor antagonists | Hirosada Sugihara, Kohei Nishikawa | 1989-11-14 |