1. New Industry Creation Hatchery Center (NICHe), Tohoku University; 6-6-10, Aoba, Aramaki, Aoba-ku Sendai Miyagi, 980-8579 Japan
2. Institute for Materials Research, Tohoku University; 2-1-1, Katahira, Aoba-ku Sendai Miyagi, 980-8577 Japan
3. Tanaka Kikinzoku Kogyo Corporation 28; Suzukawa, Isehara Kanagawa, 254-0076 Japan