Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7955699 | Composite material | Koichi Handa, Takayuki Tsukada, Jiayi Shan, Tsuyoshi Okubo | 2011-06-07 |
| 7214430 | Composite material | Koichi Handa, Takayuki Tsukada, Jiayi Shan, Tsuyoshi Okubo | 2007-05-08 |