Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6766244 | Uploading and managing vehicle position information | Hirotaka Obata, Naohiko Gonmori, Takahiro Tajima, Hiroyuki Nakagawa | 2004-07-20 |
| 6679423 | Electronic-money rewarding system for lost and found IC card | Shigeyuki Itoh, Masaaki Hiroya, Hiroshi Asao, Naomi Sato, Kei Yonezawa | 2004-01-20 |
| 6273334 | Electronic-money rewarding system for lost and found IC card | Shigeyuki Itoh, Masaaki Hiroya, Hiroshi Asao, Naomi Sato, Kei Yonezawa | 2001-08-14 |
| 5932859 | Electronic-money rewarding system for lost and found IC card | Shigeyuki Itoh, Masaaki Hiroya, Hiroshi Asao, Naomi Sato, Kei Yonezawa | 1999-08-03 |