Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812980 | Map display system | Takeshi Yamada, Hidetoshi Fujimoto, Kenzo Ito | 1989-03-14 |
| 4761742 | Guiding spot display apparatus | Nobutoshi Yamagishi, Kenzo Ito | 1988-08-02 |
| 4737927 | Map display apparatus | Yutaka Akita, Tetsuo Takagi, Kenzo Ito | 1988-04-12 |