Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4452637 | Expansive cement additive and cementitious material added therewith | Yuichi Suzukawa, Waichi Kobayashi, Shigeo Okabayashi | 1984-06-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4452637 | Expansive cement additive and cementitious material added therewith | Yuichi Suzukawa, Waichi Kobayashi, Shigeo Okabayashi | 1984-06-05 |