Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6651174 | Firewall port switching | Toru Nagaoka, Masashi Sakata | 2003-11-18 |
| 6374243 | Database access system having time-out mechanism | Toru Nagaoka, Masashi Sakata | 2002-04-16 |