Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9845814 | Hydraulic drive system | Teruo Akiyama, Noboru Iida, Koji Saito, Takayuki Watanabe | 2017-12-19 |
| 9709076 | Hydraulic drive system | Teruo Akiyama, Noboru Iida, Kenji Oshima | 2017-07-18 |
| 9328480 | Hydraulic excavator | Teruo Akiyama, Noboru Iida, Kenji Oshima | 2016-05-03 |
| 4214992 | Water collecting and distributing apparatus disposed in a lower portion of high speed filter basin | Ichiro Shiramasa | 1980-07-29 |