Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8185310 | Navigation server and navigation system | Koji Sengoku, Aiko Sugawara, Masayuki Arai, Yoshitaka Kinoshita | 2012-05-22 |
| 8103440 | Navigation server, navigation apparatus, and navigation system | Koji Sengoku | 2012-01-24 |
| 7865305 | Navigation system | Koji Sengoku, Aiko Sugawara, Masayuki Arai, Yoshitaka Kinoshita | 2011-01-04 |
| 7653480 | Traffic information providing system | Koichi Washimi, Hiroyuki Tsuda, Hirofumi Ohta | 2010-01-26 |
| 7590483 | Traffic information management system | Toshihide Yofu | 2009-09-15 |
| 7158879 | Navigation apparatus and navigation server | — | 2007-01-02 |
| 6757609 | Vehicle navigation server for obtaining traffic information for mesh unit on travel route | Toshihide Yofu, Hiroyuki Tsuda, Kouichi Washimi | 2004-06-29 |
| 5551390 | Fuel injection control system for internal combustion engines | Hidenobu Nagase | 1996-09-03 |