1. Department of Biotechnology and Life Science, Graduate School of Engineering; Tokyo University of Agriculture and Technology; Tokyo Japan
2. D epartment of Medical Technology, School of Health Sciences, Graduate School of Bionics, Computer and Media Sciences; Tokyo University of Technology; Tokyo Japan
3. Department of Engineering, Graduate School of Integrated Science and Technology; Shizuoka University; Tokyo Japan
4. Diabetes Research Institute; Mills-Peninsula Health Services; San Mateo California USA