Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9676467 | Watercraft for leisure use | Kouji Kinoshita, Shinya Shiina, Kiyoyuki Okuyama | 2017-06-13 |
| D738284 | Boat | Kiyoyuki Okuyama, Shinya Shiina | 2015-09-08 |
| D735111 | Boat | Kiyoyuki Okuyama, Shinya Shiina | 2015-07-28 |
| D734240 | Instrument panel for a boat | Kiyoyuki Okuyama | 2015-07-14 |