Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6744431 | Storage medium for use with a three-dimensional map display device | Kiyomi Sakamoto, Yutaka Takahira, Yoshiki Ueyama | 2004-06-01 |
| 6728635 | Landmark update system and navigation device | Hiroyuki Hamada, Kiyomi Sakamoto, Atsushi Yamashita | 2004-04-27 |
| 6700505 | Lane guidance display method, and navigation device and recording medium for realizing the method | Atsushi Yamashita, Kiyomi Sakamoto, Hiroyuki Hamada | 2004-03-02 |