Kouhei Ohnishi

About

Kouhei Ohnishi is a pioneering researcher in robotics and motion control, whose work has profoundly shaped the fields of haptics, bilateral teleoperation, and force control. Based at Keio University, Ohnishi has dedicated his career to bridging the gap between human sensory perception and robotic systems, with particular emphasis on making remote and autonomous robots feel and respond to their environments with human-like precision. His most influential contributions center on disturbance observer-based control architectures, which he has applied to bilateral teleoperation systems to achieve faithful reproduction of tactile feedback across master-slave robot pairs — a challenge explored in his landmark 2004 paper garnering 461 citations. His rigorous analysis of force sensing limitations and bandwidth constraints (accumulating nearly 600 citations across related works) fundamentally advanced how engineers design responsive force control systems. Ohnishi also extended these principles into medical robotics, developing haptic forceps and multi-DOF endoscopic surgical robots that demonstrate real-world clinical relevance. From his early foundational work on acceleration-based force control in 1990 through multilateral control frameworks and biped locomotion, Ohnishi's research consistently transforms theoretical control principles into practical, impactful robotic systems — making him an essential reference for any researcher working at the intersection of mechatronics, teleoperation, and human-robot interaction.

Research Focus

Key Achievements

Top Papers

1. 1
   Reproducibility and operationality in bilateral teleoperation

   461 citations · 2004
2. 2
   Modeling of Force Sensing and Validation of Disturbance Observer for Force Control

   399 citations · 2007
3. 3
   Medical mechatronics—An application to haptic forceps

   227 citations · 2005
4. 4
   An analysis and design of bilateral control based on disturbance observer

   214 citations · 2004
5. 5
   Analysis and experimental validation of force bandwidth for force control

   208 citations · 2004
6. 6
   Analysis and experimental validation of force bandwidth for force control

   198 citations · 2006
7. 7
   Realization of “Law of Action and Reaction” by Multilateral Control

   195 citations · 2005
8. 8
   Force feedback control of robot manipulator by the acceleration tracing orientation method

   130 citations · 1990
9. 9
   Implementation of Bilateral Control System Based on Acceleration Control Using FPGA for Multi-DOF Haptic Endoscopic Surgery Robot

   126 citations · 2008
10. 10
    Biped Walking Pattern Generation by Using Preview Control Based on Three-Mass Model

    118 citations · 2012

Key Collaborators

Contact & Links