Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5784739 | Super-long span suspension bridge | Masahiro Yoneda, Shunzo Nakazaki | 1998-07-28 |
| 5539946 | Temporary stiffening girder for suspension bridge | — | 1996-07-30 |
| 4665578 | Streamlined box girder type suspension bridge | Kenichi Maeda | 1987-05-19 |