1. Nanotubulities Project, JCORP-JST, c/o NEC Corporation, 34 Miyukigaoka, Tsukuba 305, Japan, Research Center for Advanced Carbon Materials, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305, Japan, Department of Chemistry, Faculty of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan, Meijo University, 1-501 Shiogamaguchi, Tempaku, Nagoya 468-8502, Japan, and NEC Corporation, 34 Miyukigaoka, Tsukuba 305-8501, Japan