Issued Patents 2024
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12063324 | Call alert device, call alert system, call alert method, and call alert program | Hiroshi Shimizu | 2024-08-13 |
| 11949812 | ENUM server and congestion control method | Hiroshi Shimizu | 2024-04-02 |