Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8737256 | Band control system for a digital subscriber network and band control method therefor | — | 2014-05-27 |
| 8396008 | Band control system for a digital subscriber network and band control method therefor | — | 2013-03-12 |
| 7929454 | Band control system for a digital subscriber network and band control method therefor | — | 2011-04-19 |
| 7239647 | Band control system for a digital subscriber network and band control method therefor | — | 2007-07-03 |
| 5937045 | Telephone call fee notifying system and telephone call fee notifying apparatus | Naoko Yaoya, Hiroshi Sato, Mariko Mori, Saburou Ikeda, Hiromi Atsuta +2 more | 1999-08-10 |