Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8891688 | Receiver circuit and receiver apparatus | Naoki Umeda | 2014-11-18 |
| 8831152 | Delay detector circuit and receiver apparatus | Naoki Umeda | 2014-09-09 |
| 8744019 | Delay detector circuit and receiver apparatus | Naoki Umeda | 2014-06-03 |