1. East Tokyo Laboratory, Genesis Research Institute, Inc., 717-86 Futamata, Ichikawa, Chiba 272-0001, Japan, Cluster Research Laboratory, Toyota Technological Institute in East Tokyo Laboratory, Genesis Research Institute, Inc., 717-86 Futamata, Ichikawa, Chiba 272-0001, Japan, Research and Development Center, Japan Polyethylene Corporation, 3-1 Chidori-cho, Kawasaki-ku, Kawasaki, Kanagawa 210-0865, Japan, and KM Techno Research, 207-27 Akiba-cho, Totsuka-ku, Yokohama, Kanagawa 245-0052, Japan