Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11149753 | Hydraulic energy recovery apparatus for working machine | Kiwamu Takahashi, Seiji Hijikata, Yuichi Ogawa, Kouji Ishikawa | 2021-10-19 |
| 11105070 | Hydraulic work machine | Kiwamu Takahashi, Seiji Hijikata | 2021-08-31 |
| 10995475 | Construction machine | Seiji Hijikata, Yasutaka Tsuruga, Kouji Ishikawa, Kiwamu Takahashi | 2021-05-04 |