Issued Patents 2023
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11753800 | Hydraulic drive system for construction machine | Taihei Maehara, Takeshi Ishii, Yuichi Ogawa | 2023-09-12 |
| 11668074 | Electrically driven hydraulic construction machine | Yuichi Ogawa, Takeshi Ishii, Seiichi Kihara | 2023-06-06 |
| 11542680 | Electric construction machine | Seiichi Kihara, Takeshi Ishii | 2023-01-03 |