Issued Patents 2020
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10817249 | Audio system control method, control terminal device, and information storage medium | Katsuaki Tanaka, Tomoyoshi Akutagawa, Hiroyuki Ichi, Akihiko Suyama, Kazuya Mushikabe +1 more | 2020-10-27 |
| 10659879 | Communication system, communication device, and communication device management method | Akihiko Suyama, Masakazu Shirai, Tomoyoshi Akutagawa | 2020-05-19 |
| 10593368 | Audio device which synchronizes audio data | Masafumi Toshitani, Hisashi Iida | 2020-03-17 |
| 10587953 | Communication system, communication device, and communication device management method | Akihiko Suyama, Masakazu Shirai, Tomoyoshi Akutagawa | 2020-03-10 |
| 10567900 | Audio system, audio device, and audio device setting method | Katsuaki Tanaka, Tomoyoshi Akutagawa | 2020-02-18 |