Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8041354 | Mobile switchboard, mobile unit, mobile communication system, and position-registration extending method | Shinichiro Aikawa, Yoshiko Koizumi, Yoko Shimominami | 2011-10-18 |
| 7983683 | Communication method, communication apparatus and communication system | Yuichiro Hamano, Mamoru Higuchi, Ritsuo Hayashi | 2011-07-19 |
| 7949339 | Communication method, communication apparatus and communication system | Yuichiro Hamano, Mamoru Higuchi, Ritsuo Hayashi | 2011-05-24 |
| 7941142 | Mobile switchboard, mobile unit, mobile communication system, and position-registration extending method | Shinichiro Aikawa, Yoshiko Koizumi, Yoko Shimominami | 2011-05-10 |