Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871765 | Amine derivative and its salt and anti-ulcer agent containing the same | Shiro Hirai, Hiroshi Hirano, Hirotoshi Arai, Hisanari Shibata, Kazuhiko Hashiba | 1989-10-03 |
| 4643849 | Intermediates for urea and thiourea derivatives | Shiro Hirai, Hiroshi Hirano, Hirotoshi Arai, Yasuo Kiba, Hisanari Shibata +3 more | 1987-02-17 |