Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6122358 | Operator connection control method | Shuichi Shoji, Eriko Kawaguchi | 2000-09-19 |
| 5910980 | Calling subscriber information notification | Yoshihiro Kaneko | 1999-06-08 |
| 5675638 | Communications device entry method and apparatus | Kenichi Hikawa | 1997-10-07 |
| 5220560 | Modem pool system based on a packet communication procedure | — | 1993-06-15 |