Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6467732 | Rotary blade of helicopter | Takanori Tsukahara | 2002-10-22 |
| 5609472 | Rotor blade for a rotary-wing aircraft | Masaaki Nakadate | 1997-03-11 |
| 5344102 | Rotary-wing blade of rotary-wing aircraft | Masaaki Nakadate | 1994-09-06 |