Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5148650 | Radiating truss roof support array and construction method therefor | Toshiyuki Yamada, Yoshihiro Takahama, Hajime Nakajima | 1992-09-22 |
| 5067288 | Dome structure | Yoshihiro Takahama, Kazushige Kurihara | 1991-11-26 |
| 5058334 | Radiating truss roof support array and construction method therefor | Toshiyuki Yamada, Yoshihiro Takahama, Hajime Nakajima | 1991-10-22 |