Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5150556 | Chord truss roof structure | Toshiyuki Yamada, Kazushige Kurihara, Hajime Nakajima | 1992-09-29 |
| 5148650 | Radiating truss roof support array and construction method therefor | Toshiyuki Yamada, Hajime Nakajima, Takayuki Nishiya | 1992-09-22 |
| 5067288 | Dome structure | Kazushige Kurihara, Takayuki Nishiya | 1991-11-26 |
| 5058334 | Radiating truss roof support array and construction method therefor | Toshiyuki Yamada, Hajime Nakajima, Takayuki Nishiya | 1991-10-22 |