Issued Patents All Time
Showing 1–25 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12420832 | Driving assistance device | Hidenori Nagasaka, Keita OGAWA | 2025-09-23 |
| 12365342 | Drive assistance device and computer program | — | 2025-07-22 |
| 8769237 | Map updating system and map updating program using dynamic cache memory | Tatsumi Sakamoto, Toyoji Hiyokawa, Hiroyoshi Masuda, Tomofumi Shibata, Kazuyuki Hirakawa +3 more | 2014-07-01 |
| 7076364 | Road map display device and redoce media for use in the same | Nobuhide Kuroda, Kunihiro Yamada, Hiroyoshi Masuda, Hidenori Nagasaka | 2006-07-11 |
| 7031831 | Vehicle navigation apparatus and program | Takanori Kaji, Kunihiro Yamada, Hiroyoshi Masuda | 2006-04-18 |
| 6937936 | Navigation system | — | 2005-08-30 |
| 6697733 | Road map display device and redoce media for use in the same | Nobuhide Kuroda, Kunihiro Yamada, Hiroyoshi Masuda, Hidenori Nagasaka | 2004-02-24 |
| 6507784 | Road map display device and redoce media for use in the same | Nobuhide Kuroda, Kunihiro Yamada, Hiroyoshi Masuda, Hidenori Nagasaka | 2003-01-14 |
| 6333702 | Navigation device | Toyoji Hiyokawa, Akimasa Nanba | 2001-12-25 |
| 6282490 | Map display device and a recording medium | Hiroyoshi Masuda, Hirofumi Morimoto | 2001-08-28 |
| 6266613 | Navigation apparatus for a vehicle | Yasunobu Ito, Hiroyoshi Masuda, Takeshi Yano | 2001-07-24 |
| 6202026 | Map display device and a recording medium | Hiroyoshi Masuda | 2001-03-13 |
| 6144318 | Navigation system | Seiji Hayashi, Kihachi Hayashida, Yasunobu Ito | 2000-11-07 |
| 6128571 | Vehicle navigation system | Yasunobu Ito | 2000-10-03 |
| 6125323 | Device for processing road data or intersection data | Yasunobu Ito | 2000-09-26 |
| 6098015 | Navigation system for vehicles and storage medium | Yasunobu Ito | 2000-08-01 |
| 6070124 | Navigation display device which indicates goal and route direction information | Kunihiro Yamada, Kazuteru Maekawa | 2000-05-30 |
| 6067500 | Navigation system | Kyomi Morimoto, Yasunobu Ito | 2000-05-23 |
| 6064941 | Vehicle navigation apparatus and storage medium | Kiyohide Kato, Yasunobu Ito | 2000-05-16 |
| 6061628 | Navigation system for vehicles | Seiji Hayashi, Kihachi Hayashida, Keizo Inoue, Shinichi Kato, Katsuhiko Mutsuga | 2000-05-09 |
| 6049753 | Device for searching and guiding route and for searching route | — | 2000-04-11 |
| 6041281 | Information guidance system based on structure configuration map | Seiji Hayashi, Yasunobu Ito, Keizo Inoue | 2000-03-21 |
| 6035253 | Navigation apparatus for a vehicle and a recording medium for use in the same | Seiji Hayashi, Yasunobu Ito | 2000-03-07 |
| 5983158 | Navigation system for vehicles | Yukiyoshi Suzuki, Kyomi Morimoto, Yasunobu Ito, Kazuteru Maekawa | 1999-11-09 |
| 5944768 | Navigation system | Yasunobu Ito, Kihachi Hayashida, Seiji Hayashi, Chihiro Hayashi | 1999-08-31 |