Two-dimensional locomotive permanent magnet using electromagnetic actuation system with two pairs stationary coils. - Jongho Choi; Hyunchul Choi; Kyoungrae Cha; Jong-Oh Park; Sukho Park (ROBIO, 2009)

A Stiffness Adjustable 6-DOF Robotic System for Pituitary Tumor Resection Under MRI. - Muhammad Umar Farooq; Hyun-Woo Baek; Sungmin Seung; Kyoungrae Cha; Heon You; Dong-Soo Kwon; Seong Young Ko (IEEE Access, 2020)