[1] Sumitomo Metal Industries, Ltd., Osaka, Japan
[2] Sumitomo Metal Industries, Ltd., Amagasaki, Japan
[3] Sumitomo Metal Industries, Ltd., Kashima, Japan
[4] Osaka Gas Co., Ltd., Osaka, Japan
[5] Toyo Kanetsu K.K., Tokyo, Japan
[6] GH Engineering Consultants Co., Ltd., Tokyo, Japan
[7] Sophia University, Tokyo, Japan