Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4946862 | Thiophene derivative and process for preparing the same | Kimiaki Hayashi, Yasuhiko Ozaki, Kenji Yamada, Hideyuki Takenaga | 1990-08-07 |
| 4857543 | Thiophene derivative and process for preparing the same | Kimiaki Hayashi, Yasuhiko Ozaki, Kenji Yamada, Hideyuki Takenaga | 1989-08-15 |
| 4714702 | Quinazolinone derivative | Toyonari Oine, Yoshihisa Yamada, Ryuichi Ishida, Takashi Ochiai | 1987-12-22 |