Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5343399 | Vehicle navigation system | Shoji Yokoyama, Kyomi Morimoto, Kiyohide Katoh, Kenji Kuroda, Hiroshi Kishi +1 more | 1994-08-30 |
| 5121326 | Display system in navigation apparatus | Shuzo Moroto, Shoji Yokoyama, Mitsuhiro Nimura, Takashi Yamada, Koji Sumiya | 1992-06-09 |
| 5067082 | Navigation apparatus | Mitsuhiro Nimura, Shoji Yokoyama | 1991-11-19 |
| 5043902 | Vehicular navigation apparatus | Shoji Yokoyama | 1991-08-27 |
| 4943925 | Navigation apparatus based on present position calculating system | Shuzo Moroto, Koji Sumiya, Shouji Yokoyama, Mitsuhiro Nimura | 1990-07-24 |
| 4937752 | An apparatus for correcting distance error in a navigation system | Mitsuhiro Nimura, Shoji Yokoyama | 1990-06-26 |