Financial Support 1. Grant-In-Aid of Ministry of Education, Science, and Culture, Japan. Grant-In-Aid for Research Center for Ultra-high Speed Electronics Grant-In-Aid for Research Center for Quantum Effect Electronics Scientific Research (A, B, C) Scientific Research on Priority Areas (Quantum Coherent Electronics) Scientific Research on Priority Areas (Single Electron Devices) Industry-University Joint Research Program (Mesoscopic Electronics) 　 2. Other Grant Fellowship of the Japan Society for the Promotion of Science for Japanese Junior Scientists Grant for "Research for the Future" Program #JSPS-RFTF96P00101 from the Japan Society for the Promotion of Science (JSPS) Seki Foundation for the Promotion of Science and Technology 　 3.Companies & Others Anritsu Co. Fujikura Co. Furukawa Electric Industries Co., Ltd. NEC Co. Nippon Sanso Co. NTT Co. Sumitomo Electric Industries, Ltd.