1. Department of Computer-Aided Engineering and Development, Sumitomo Metal Mining Co., Ltd., Niihama, Ehime 792-0001, Japan
2. Ink Materials Department, Ohkuchi Electronics Co., Ltd., Isa, Kagoshima 895-2501, Japan
3. Ichikawa Research Center, Sumitomo Metal Mining Co., Ltd., 3-18-5 Nakakokubun, Ichikawa, Chiba 272-8588, Japan