Design and Evaluation of User Interface for Server-Aided In-Brain Signature - for Server-Aided In-Brain Signature. - Ryunosuke Harada; Wataru Hatakeyama; Sena Enomoto; Kakeru Hasegawa; Toi Tomita; Kenta Takahashi; Wakaha Ogata; Masakatsu Nishigaki (HCI (63), 2025)