Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4964912 | Heat-curing cement composition, method of hardening same, and hardened body formed therefrom | Mototaka Egawa, Masao Yuge | 1990-10-23 |
| 4452637 | Expansive cement additive and cementitious material added therewith | Yuichi Suzukawa, Waichi Kobayashi, Hidefumi Ichinose | 1984-06-05 |