Issued Patents 2018
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10161108 | Hydraulic fluid energy recovery system for work | Seiji Hijikata, Kouji Ishikawa, Shinya Imura | 2018-12-25 |
| 10030361 | Construction machine | Seiji Hijikata, Kouji Ishikawa, Shinya Imura | 2018-07-24 |
| 9926950 | Hydraulic system for construction machinery | Seiji Hijikata, Kouji Ishikawa | 2018-03-27 |
| 9926951 | Energy regeneration system for construction machine | Seiji Hijikata | 2018-03-27 |