Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11776411 | Ship navigation assisting device | Osamu Yagi | 2023-10-03 |
| 5515287 | Navigation display apparatus for collison avoidance utilizing polygonal safety regions and predicted danger areas | Yoshio Kato, Satoki Maeda, Hideo Yamaguchi, Osamu Yagi | 1996-05-07 |