Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6792558 | Backup system for operation system in communications system | Kenichi Kuwako, Mitsunobu Yoshida, Eiichi Takada | 2004-09-14 |
| 5436959 | Communication terminal having functions of detecting and preventing line branch | Masao Komatsu | 1995-07-25 |