Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11548538 | Heating floor panel unit and floor structure of railcar | Takahiro Kawashima | 2023-01-10 |
| 11492025 | Railcar floor structure | Takahiro Kawashima, Yasuo Onitake | 2022-11-08 |