Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10457371 | Vessel steering apparatus | Naohiro Hara, Jun Watanabe, Gakuji TAMURA | 2019-10-29 |
| 10078332 | Ship handling device | Gakuji TAMURA, Jun Watanabe, Naohiro Hara | 2018-09-18 |
| 9963214 | Ship handling device | Jun Watanabe, Gakuji TAMURA, Naohiro Hara | 2018-05-08 |
| 9494094 | Engine rotational speed control device | Naohiro Hara, Jun Watanabe, Akiyoshi Hayashi, Takao Nakanishi | 2016-11-15 |