Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6448927 | Position information system | Toshihiro Ishigaki, Arata Kurosawa, Masaki Arima | 2002-09-10 |
| 6404352 | Mobile terminal and emergency reporting system | Yukio Ichikawa | 2002-06-11 |