Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6937858 | Mobile radio communication system | Keijiro Take, Toshiaki Tomisawa | 2005-08-30 |
| 6370377 | Mobile radio communication system | Keijiro Take, Toshiaki Tomisawa | 2002-04-09 |