Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4431343 | Leg clamping device for jack up platform | Youichi Hattori, Kouki Koyanagi, Toshio Ohkoshi, Takaaki Ishihama, Kouji Toda | 1984-02-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4431343 | Leg clamping device for jack up platform | Youichi Hattori, Kouki Koyanagi, Toshio Ohkoshi, Takaaki Ishihama, Kouji Toda | 1984-02-14 |