Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6734187 | Purine derivatives and medicaments comprising the same as active ingredient | Toshihiko Tanaka, Eiichirou Iwashita, Akiko Tarao, Yuya Ono | 2004-05-11 |
| 5545647 | 3-phenylpyrrolidine derivatives | Toshihiko Tanaka, Akihiro Yamamoto | 1996-08-13 |