Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7711380 | PoC communication server apparatus, terminal apparatus and PoC communication method | Naomasa Yoshida, Atsushi Sato, Yosuke Hayashi | 2010-05-04 |
| 5963550 | Packet transfer scheme and mobile communication system | Shoichi Hirata, Masumi Sotoyama, Kimio Ikeda, Kazuo Sugiyama, Koji Yamamoto +1 more | 1999-10-05 |