Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831030 | Diphenylpyridine compounds, processes for the preparation thereof and composition comprising the same | Hisashi Takasugi, Atsushi Kuno, Hiroyoshi Sakai, Takao Takaya | 1989-05-16 |