Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11256935 | Notification processing device | Kunihiko Chiba, Tomohiro Miyachi | 2022-02-22 |
| 10762362 | Notification processing device | Kunihiko Chiba, Tomohiro Miyachi | 2020-09-01 |
| 7899617 | Navigation system providing route guidance in multi-lane road according to vehicle lane position | Hidehiko Kawakami | 2011-03-01 |
| 5948041 | Information service device having simple data retrieval capabilities | Masatoshi Abo, Kunihiro Ishikawa | 1999-09-07 |
| 4760531 | Map display system | Toshio Yasui | 1988-07-26 |
| 4744033 | Electronic display system | Toshio Yasui, Kenzo Ito | 1988-05-10 |
| 4737916 | Electronic map display system | Masaki Yamamoto, Kunihiro Ishikawa, Kenzo Ito | 1988-04-12 |