Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6734181 | Pyrrolopyridazine compounds | Haruo Iwabuchi, Masahiko Hagihara, Nobuhiko Shibakawa, Hiroshi Fujiwara | 2004-05-11 |
| 6670360 | Optically active pyrrolopyridazine derivatives | Masahiko Hagihara, Nobuhiko Shibakawa, Hiroshi Fujiwara, Keiichi Ito | 2003-12-30 |
| 6063782 | Pyrrolopyridazine derivatives | Tomio Kimura, Nobuhiko Shibakawa, Hiroshi Fujiwara, Etsuro Itoh, Keiichi Tabata +2 more | 2000-05-16 |