Issued Patents 2020
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10841430 | Intercom system and data transfer method in said system | — | 2020-11-17 |
| 10757266 | Terminal device, and intercom system provided with terminal device | Akira Kai, Kenji Yasukawa | 2020-08-25 |
| 10721361 | Interphone system and setting apparatus | Yuta Shimomura | 2020-07-21 |
| 10652378 | Intercom system | Akira Kai, Yuta Shimomura | 2020-05-12 |
| 10616420 | Intercom system | Kenji Yasukawa, Hayato Takeya | 2020-04-07 |