Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8041354 | Mobile switchboard, mobile unit, mobile communication system, and position-registration extending method | Shinichiro Aikawa, Yoshiko Koizumi, Yukihiro Noda | 2011-10-18 |
| 7941142 | Mobile switchboard, mobile unit, mobile communication system, and position-registration extending method | Shinichiro Aikawa, Yoshiko Koizumi, Yukihiro Noda | 2011-05-10 |