Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4409030 | Material for destroying concrete structures | Keiichi Minegishi, Tokuji Akiba, Hiroshi Harada, Akihiko Takei | 1983-10-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4409030 | Material for destroying concrete structures | Keiichi Minegishi, Tokuji Akiba, Hiroshi Harada, Akihiko Takei | 1983-10-11 |