Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5845194 | Self-diagnostic method of radio portable device | Hiroyuki Seki | 1998-12-01 |
| 5839055 | Narrow band radio transmitting and receiving apparatus and method | Kazunari Higuchi, Kazuya Toki | 1998-11-17 |