Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8467402 | Digital audio communication system | Yoshinari Yoshikawa, Kaoru Zeren, Toshiaki Takada, Noriyuki Okada | 2013-06-18 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8467402 | Digital audio communication system | Yoshinari Yoshikawa, Kaoru Zeren, Toshiaki Takada, Noriyuki Okada | 2013-06-18 |