Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4344951 | N-Benzoyl N'-pyridyloxy phenyl urea | Ryuzo Nishiyama, Takahiro Haga, Tadaaki Toki, Tohru Koyanagi | 1982-08-17 |
| 4310530 | N-benzoyl N-pyridyloxy phenyl urea | Ryuzo Nishiyama, Takahiro Haga, Tadaaki Toki, Tohru Koyanagi | 1982-01-12 |