Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12282906 | Transaction data processing apparatus connected to an external device for data communication | Koichi Sugiyama, Yasuhiro Arai, Tsuyoshi GOTANDA, Keiichi Hasegawa | 2025-04-22 |
| 12198121 | Electronic receipt management system | Koichi Sugiyama, Yasuhiro Arai, Tsuyoshi GOTANDA, Makoto Yoshimura, Takashi Nakajima +1 more | 2025-01-14 |
| 11315095 | Electronic receipt management system | Koichi Sugiyama, Yasuhiro Arai, Tsuyoshi GOTANDA, Makoto Yoshimura, Takashi Nakajima +1 more | 2022-04-26 |
| 10387861 | Electronic receipt management system | Koichi Sugiyama, Yasuhiro Arai, Tsuyoshi GOTANDA, Makoto Yoshimura, Takashi Nakajima +1 more | 2019-08-20 |