Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10829416 | Rapid-hardening admixture and method for producing same | Kenji Tokunaga, Hideo Tawara | 2020-11-10 |
| 10800701 | Rapid-hardening cement composition | Keiji Saitou, Kenji Tokunaga, Hideo Tawara | 2020-10-13 |