Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10885498 | Attendance registration device, attendance registration method, and recording medium | Taro Ejiri, Tatsuzi Ichikawa | 2021-01-05 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10885498 | Attendance registration device, attendance registration method, and recording medium | Taro Ejiri, Tatsuzi Ichikawa | 2021-01-05 |