Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7532580 | Gateway apparatus, communication system, and delay measurement method | — | 2009-05-12 |
| 6940815 | Priority control method | — | 2005-09-06 |
| 6574191 | Line switching system and method | Toshio Suzuki | 2003-06-03 |