Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9193431 | Ship steering device and ship steering method | Naohiro Hara, Akiyoshi Hayashi | 2015-11-24 |
| 8862293 | Ship steering device and ship steering method | Naohiro Hara, Akiyoshi Hayashi | 2014-10-14 |