Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11046341 | Satellite positioning apparatus and train control system capable of determining accurate and limited position range of moving object | Tomoaki Takewa, Wataru Tsujita, Masahiro Shikai, Tadashi Yamamoto, Masashi Asuka +1 more | 2021-06-29 |
| 10859708 | Satellite positioning system receiver capable of detecting failure in RF receiver unit including receiving antenna | Tomoaki Takewa, Wataru Tsujita, Yoshitsugu Sawa, Kenji Kataoka, Tadashi Yamamoto | 2020-12-08 |
| 10640134 | Train position detection device | Wataru Tsujita, Kenji Inomata, Kazuhiro Tahara | 2020-05-05 |
| 10597056 | Train control system, base-station control device, ground wireless base station, and on-vehicle wireless station | Tetsuya Aoyama | 2020-03-24 |
| 10501101 | Train-position detection device | Wataru Tsujita, Tadashi Yamamoto, Kazuhiro Tahara, Kenji Kataoka | 2019-12-10 |
| 10392036 | Train control system, base station control device, and ground wireless base station system | Tetsuya Aoyama | 2019-08-27 |
| 9500747 | Travel distance measurement device | Kenji Inomata, Wataru Tsujita, Kazuhiro Tahara | 2016-11-22 |
| 9336683 | Travel distance measurement device | Kenji Inomata, Wataru Tsujita, Kazuhiro Tahara | 2016-05-10 |