Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10597050 | Air spring and bogie | Takayuki Sawa, Hideki Kitada, Takehiro Nishimura, Keiichiro Kamura, Yoshi Sato | 2020-03-24 |
| 10563719 | Air spring and bogie | Takayuki Sawa, Hideki Kitada, Takehiro Nishimura, Keiichiro Kamura, Yoshi Sato | 2020-02-18 |
| 10538257 | Air spring and bogie | Takayuki Sawa, Hideki Kitada | 2020-01-21 |
| 10449979 | Air spring and bogie | Takayuki Sawa, Hideki Kitada, Takehiro Nishimura, Keiichiro Kamura, Yoshi Sato | 2019-10-22 |
| 10435044 | Air spring and bogie | Takayuki Sawa, Hideki Kitada, Takehiro Nishimura, Keiichiro Kamura, Yoshi Sato | 2019-10-08 |
| 9759282 | Air spring | Hirokazu Haraguchi, Takayuki Sawa, Jun Yoshida | 2017-09-12 |