Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6377165 | Mayday system equipment and mayday system | Kenji Yoshioka | 2002-04-23 |
| 6337641 | Emergency reporting system and terminal apparatus therein | Kenji Yoshioka, Masashi Yamamoto | 2002-01-08 |