Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12314940 | Currency management system and electronic signature device | Keita TAKAMATSU, Yu KUSAKABE | 2025-05-27 |
| 11816663 | Currency management system and electronic signature device | Keita TAKAMATSU, Yu KUSAKABE | 2023-11-14 |
| 11341576 | Management device, cryptocurrency system, and system | Yu KUSAKABE, Keita TAKAMATSU | 2022-05-24 |
| 11341577 | Management device, cryptocurrency system, and system | Yu KUSAKABE, Keita TAKAMATSU | 2022-05-24 |
| 10628886 | Management device, cryptocurrency system, and system | Yu KUSAKABE, Keita TAKAMATSU | 2020-04-21 |