Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7756046 | Apparatus and method for locating trouble occurrence position in communication network | Yuki Unno | 2010-07-13 |
| 7681236 | Unauthorized access prevention system | Naohiro Tamura, Mayuko Morita, Satoru Torii, Osamu Koyano | 2010-03-16 |
| 7653942 | Unauthorized access prevention system | Naohiro Tamura, Mayuko Morita, Satoru Torii, Osamu Koyano | 2010-01-26 |
| 7457965 | Unauthorized access blocking apparatus, method, program and system | Naohiro Tamura, Mayuko Morita, Osamu Koyano | 2008-11-25 |