Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5788421 | Blocking agent for rock cracks and method of blocking rock cracks | Nakamichi Yamasaki, Hideaki Takahashi | 1998-08-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5788421 | Blocking agent for rock cracks and method of blocking rock cracks | Nakamichi Yamasaki, Hideaki Takahashi | 1998-08-04 |