1. Toyota Technological Institute, Hisakata 2-12-1, Tempaku, Nagoya 468-8511, Japan
2. MIRAI, Japan Science and Technology Agency, Tokyo 102-0076, Japan
3. Transmission Devices Laboratory, Sumitomo Electric Industries Ltd., 1-1-1, Koyakita, Itami-Shi, Hyogo 664-0016, Japan
4. Research Center for Smart Energy Technology, Toyota Technological Institute, Nagoya 468-8511, Japan
5. CREST, Japan Science and Technology Agency, Tokyo 102-0076, Japan