Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5159069 | Sulfated tannins and their salts | Fukushi Hirayama, Keijiro Uchino, Akira Fukuchi, Masashi Hiramoto, Hirokazu Yamamoto +4 more | 1992-10-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5159069 | Sulfated tannins and their salts | Fukushi Hirayama, Keijiro Uchino, Akira Fukuchi, Masashi Hiramoto, Hirokazu Yamamoto +4 more | 1992-10-27 |