Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7747928 | Digital wireless communication apparatus | Shigeo Sato | 2010-06-29 |
| 7391813 | Digital wireless communications device | — | 2008-06-24 |
| 7221661 | Radio terminal, radio synchronization system having no base station, and recording medium | Masaki Matsui, Minoru Ogino, Shigeo Sato | 2007-05-22 |
| 6914940 | Device for improving voice signal in quality | Masato Tanaka, Meizhong Wang, Yoshinori Shinohara, Kazuhiko Seki | 2005-07-05 |