RIM Lab logoRIM LABRobotics & Intelligent Mechanisms

Research Projects

Robotic Hands

Anthropomorphic hands with novel actuation, sensing, and skeletal structures.

Overview

The human hand is the most versatile manipulator known. We design anthropomorphic robotic hands that approach this versatility through novel actuation mechanisms, accurate joint kinematics, and integrated tension/force sensing.

Recent work includes the RIM Hand — a robotic hand with an accurate carpometacarpal joint and nitinol-reinforced skeletal structure — and earlier prosthetic hands such as the MSC Hand, driven by twisted string actuation.

Anthropomorphic robot hand with finger and palm skin design
Anthropomorphic robot hand with finger and palm skin design

Demonstrations

DDD Gripper — Direct-Drive Differential Multi-DOF Robotic Gripper

Simple Torque-Observation Alignment for Zero-Shot Sim-to-Real Grasping with a Direct-Drive Gripper

RIM Hand Test 2

RIM Hand Test 1

RIM Hand — Accurate Carpometacarpal Joint and Nitinol-Reinforced Skeleton

Flex RIM Hand — 1st Prototyping

Prosthetic Robot Hand controlled by EMG (Box and Block Test)

MSC Prosthetic Hand Prototype — EMG-based Grasping Intention Estimation

Webinar — High-Performance Anthropomorphic Prosthetic Hand Systems (KR)

Anthropomorphic Robot Hand with Active Dual-Mode Twisted String Actuation

Ph.D. work at KAIST

Representative Publications

Patents

  • Fingertip 3-axis force estimation from actuator current in a direct-drive differential mechanismFiledKR 10-2026-0177849
  • Multi-DOF robotic gripper using a direct-drive differential mechanismFiledKR 10-2026-0005274 · PCT/KR2026/005769
  • Quasi-direct-drive robot hand actuation with a nonlinear elastic mechanism and its controlFiledKR 10-2026-0075758 · KR 10-2025-0097452 · US 19/741,259 · JP 2026-174560 · DE 10 2026 130 079
  • Flexible robot hand design method (CMC-joint robot hand)FiledKR 10-2025-0097414 · KR 10-2026-0118232
  • Robot hand ↗RegisteredKR 10-2023-0181022

Funding

  • NRF Materials Global Young Connect — high-dielectric elastomers for electroadhesive robotic end-effectors (2025.07 – 2028.12, 3.5B KRW; lead: Sogang, with KETI · GIST · Yonsei; intl. collaboration with UW-Madison and U. Louisville)