Patents/Assignees

Playground Co., Ltd.

3 patents in portfolio

US12254720utility2025
Ticket Issuing System, and Ticket Checking Apparatus
0 cites
US12230086utility2025
Information Processing Server, Information Processing System, Determination Device, and Method
0 cites
US11941919utility2024
Ticket Issuing System, and Ticket Checking Apparatus
0 cites