Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8667170 | Address conversion method, access control method, and device using these methods | — | 2014-03-04 |
| 7539858 | Packet encryption substituting device, method thereof, and program recording medium | Kei Karasawa | 2009-05-26 |