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Inventors
Seungshin Choi
Seoul
KR
6 patents
4 Patents
US12547999
2026
Security Key Input System and Method Using One-time Keypad
0 cites
US12511629
2025
Security Key Input System and Method Using One-time Keypad
0 cites
US12271874
2025
Security Key Input System and Method Using One-time Keypad
0 cites
US11727371
2023
Security Key Input System and Method Using One-time Keypad
0 cites