Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9819503 | Server device for exchanging messages | Mayumi Yamamoto, Ichito Nagata, Tomo Tsubota, Mamoru YAMASHIKI | 2017-11-14 |
| 9794200 | Server device, method, and system | Tomo Tsubota, Ichito Nagata, Yosaku Toyama | 2017-10-17 |