Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9873140 | Foreign material removing device of track turnout portion | Masahumi Sato, Yuki Kinugasa | 2018-01-23 |
| 9315959 | Foreign matter removing apparatus at track branch, and nozzle used in the same | Takanori Sekihara, Masafumi Sato, Junichi Chiba, Shigeru Takahashi, Jun Sato +1 more | 2016-04-19 |