1. Department of Science of Technology Innovation, Nagaoka University of Technology
2. Technology Education Support Center, National Institute of Technology, Akita College
3. Department of Micro Engineering, Kyoto University
4. Department of Mechanical Engineering and Robotics, National Institute of Technology, Akita College
5. Department of Mechanical Engineering, National Institute of Technology, Nagano college
6. Department of Mechanical Engineering, Nagaoka University of Technology