Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5150556 | Chord truss roof structure | Toshiyuki Yamada, Yoshihiro Takahama, Hajime Nakajima | 1992-09-29 |
| 5067288 | Dome structure | Yoshihiro Takahama, Takayuki Nishiya | 1991-11-26 |
| 5038122 | Electromagnetic relay | Kiyofumi Nakayama | 1991-08-06 |