Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6820001 | Navigation system for vehicle | — | 2004-11-16 |
| 6681178 | Navigation apparatus | Koichi Inoue | 2004-01-20 |
| 6366852 | Navigation device | Takashi Irie | 2002-04-02 |
| 5982301 | Navigation apparatus | Masako Ohta, Hisatsugu Itoh, Hiroaki Ideno | 1999-11-09 |