1. Department of Electrical and Electronic Engineering, School of Engineering, Daido University, Japan
2. Department of Crystalline Materials Science, Graduate School of Engineering, Nagoya University, Japan
3. Department of Physics and Electronics, Graduate School of Engineering, Osaka Prefecture University, Japan
4. New Business Development Division, Daido Steel Co., Ltd., Japan
5. Graduate School of Engineering, Nagoya University, Japan
6. Department of Physics, Graduate School of Science, Nagoya University, Japan
7. High Energy Accelerator Organization, Japan
8. Central Research Laboratory, Hitachi Ltd., Japan
9. Fundamental Electronics Research Institute, Osaka Electro-Communication University, Japan