Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11198352 | Electricity storage device controller, electric system and construction machine | Itaru NAYA, Seiji Ishida, Mutsumi Kikuchi | 2021-12-14 |
| 11149409 | Construction machine | Itaru NAYA, Shinya Imura, Masafumi HITA, Seiji Ishida | 2021-10-19 |
| 11142887 | Hybrid working machine | Akira Watanabe, Tadashi Osaka | 2021-10-12 |
| 11085172 | Construction machine | Haruki Sugiyama, Akira Watanabe | 2021-08-10 |