Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10882605 | Riblet structure and object | Kie Okabayashi, Akira Nishizawa, Mitsuru Kurita, Hidetoshi Iijima | 2021-01-05 |
| 6408575 | Horizontal axis type wind turbine and method of construction thereof | Shigeo Yoshida, Yuji Kawakita, Toru Nagao, Noriyuki Takahashi | 2002-06-25 |