Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6791973 | Internet telephone system | — | 2004-09-14 |
| 6769020 | Data terminal, data distribution system, and internet telephone system | Tomiya Miyazaki, Toru Imamura, Masafumi Tanaka, Yutaka Takeda, Keisuke Ogata +2 more | 2004-07-27 |
| 6704309 | Internet telephone apparatus and internet telephone gateway system | Noriaki Nada, Takao Miyazaki, Toshinori Yamagichi, Takuji Tujigawa, Yasuyuki Nishioka +4 more | 2004-03-09 |