Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5627249 | Acrylamide polymers and use thereof | Hirotoshi Doki, Hitoshi Ishigaki, Tsugio Matsubara, Shigeo Watanabe | 1997-05-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5627249 | Acrylamide polymers and use thereof | Hirotoshi Doki, Hitoshi Ishigaki, Tsugio Matsubara, Shigeo Watanabe | 1997-05-06 |