A free-rotating gripper for grasping or rotating an object. - Tomoya Teraguchi; Kazuyoshi Wada; Masashi Seki; Tetsuo Tomizawa (SII, 2021)

A robot hand with free-rotating grips for switching three different grasping modes. - Masashi Seki; Kazuyoshi Wada; Tomoya Teraguchi; Tetsuo Tomizawa (Adv. Robotics, 2022)