Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10036447 | Stabilizer and ship | Takashi Miura, Hiroshi Takeuchi, Katsuya Umemura | 2018-07-31 |
| 9452810 | Rolling motion reducing apparatus for a ship | Hiroshi Takeuchi, Katsuya Umemura | 2016-09-27 |