Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11345379 | Train location measurement system, onboard device, ground device, and train location measurement method | — | 2022-05-31 |
| 11325623 | Rail breakage detection device and rail breakage detection system | Masashi Asuka, Wataru Tsujita, Tomoaki Takewa, Yoshitsugu Sawa | 2022-05-10 |