Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10009737 | Relaying device, voice communication system and voice communication method | Hirotaka Sonobe | 2018-06-26 |
| 9742483 | Relaying device | — | 2017-08-22 |
| 9503908 | Relaying device | Hirotaka Sonobe | 2016-11-22 |
| 9112574 | Relaying device and communication system | — | 2015-08-18 |