Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6636785 | Communications control apparatus and method for automotive vehicle | Takuo Ishiwaka, Toru Takagi, Susumu Fujita | 2003-10-21 |
| 6604045 | Navigation system, data server, traveling route establishing method and information providing method | Takuo Ishiwaka, Toru Takagi, Susumu Fujita | 2003-08-05 |
| 6567746 | Map information providing apparatus and method | Takuo Ishiwaka | 2003-05-20 |