Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4927611 | Lightweight magnesia clinker and process for the preparation of the same | Kosei Yamamoto, Akira Kaneyasu | 1990-05-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4927611 | Lightweight magnesia clinker and process for the preparation of the same | Kosei Yamamoto, Akira Kaneyasu | 1990-05-22 |