Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10184224 | Quick coupler | Tsuyoshi Yoshida, Akira Hashimoto, Takuya Tsukada, Kenichi Higuchi | 2019-01-22 |
| 9903091 | Quick coupler | Takuya Tsukada, Kenichi Higuchi, Akira Hashimoto, Hisao Asada, Tsuyoshi Yoshida | 2018-02-27 |