Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5623074 | Substituted tetrahydroisoquinoline compounds, and process for producing them, and composition containing them | Akihiro Tanaka, Ryuji Tsuzuki, Masaki Yokota, Takeyuki Yatsu | 1997-04-22 |
| 5591757 | Dihydropyridine composition | Noriki Ito, Yuzo Matsumoto, Masaharu Asano, Toichi Takenaka | 1997-01-07 |