Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5444629 | Vehicle-guiding device for recognizing curved road and leading vehicle along curved road aurally | Hiroshi Kishi, Toru Ito, Shoji Yokoyama, Kenji Kuroda | 1995-08-22 |
| 5410486 | Navigation system for guiding vehicle by voice | Hiroshi Kishi, Toru Ito, Shoji Yokoyama, Kenji Kuroda | 1995-04-25 |
| 5343399 | Vehicle navigation system | Shoji Yokoyama, Akimasa Nanba, Kiyohide Katoh, Kenji Kuroda, Hiroshi Kishi +1 more | 1994-08-30 |