Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D937846 | Display screen with graphical user interface | Kenichi Ogawa, Yoshihito Takigawa | 2021-12-07 |
| 11186303 | Train control and management system, central command device, screen information transmission system and screen information transmission method | Yosuke Isshiki, Yoshihito Takigawa | 2021-11-30 |
| 11172546 | Wireless device adapted to perform wireless communication | — | 2021-11-09 |
| D925553 | Display screen with graphical user interface | Kenichi Ogawa, Yoshihito Takigawa | 2021-07-20 |