Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6662105 | Navigation device and method of use having two separate route searching devices | Akihito Tada, Hironobu Sugimoto | 2003-12-09 |
| 6636805 | Navigation system, remote navigation device and method, and in-vehicle navigation device | Akihito Tada, Hironobu Sugimoto | 2003-10-21 |
| 6594580 | Apparatus and system for providing route guidance information and a communication terminal thereof | Akihito Tada, Hironobu Sugimoto | 2003-07-15 |
| 6581004 | Route navigation system, client terminal, server, route navigation method, and route identicalness determination method | Kenji Mori | 2003-06-17 |