Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11900701 | Left object detection device and left object detection method | Hiroshi Okatani, Hiroaki KOIWA | 2024-02-13 |
| 7269487 | Method for train positioning | Dai Watanabe, Kenji Oguma | 2007-09-11 |
| 7006012 | Automatic train stop system | Hiroshi Taoka, Dai Watanabe | 2006-02-28 |