Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10597050 | Air spring and bogie | Takayuki Sawa, Yasuhiko Ura, Takehiro Nishimura, Keiichiro Kamura, Yoshi Sato | 2020-03-24 |
| 10563719 | Air spring and bogie | Takayuki Sawa, Yasuhiko Ura, Takehiro Nishimura, Keiichiro Kamura, Yoshi Sato | 2020-02-18 |
| 10538257 | Air spring and bogie | Takayuki Sawa, Yasuhiko Ura | 2020-01-21 |