Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6792266 | Network telephone system | Noboru Masuda | 2004-09-14 |
| 6625143 | Switch having virtual access network capability and switching system thereof | Mamoru Higuchi | 2003-09-23 |