Born in 1955. After earning a doctoral degree in Engineering at Keio University, left for the U.S.. Worked in University of South Florida in USA and University of South Carolina as a teacher. In 1991, Takefuji gained a tenured position in Case Western Reserve University. After returning to Japan, Takefuji goes deeply into pinciples in engineering and define them on creating a number of inventions such as the world’s first cell-phone camera, the currency validator (BV6000), the neural net engine for adaptive optics, the tangible mouse, security driverware, the power harvesting floor of Japan Railways East, and the thermoelectric power generation using unused heats (hot springs, magma, incinerators, heating power plants,…). Furthermore, as Takefuji believes everything is converged with fundamental principles, he broadens his field of study to Internet security, hyperspectral, five-sense application technology, electric toy, RFID tag, sensor, PLC, UWB, and GPS. Takefuji gives lectures in Japan and overseas and has done 29 books and more than 300 scientific literatures. He teaches at the Faculty of Environment and Information Studies, Keio University. As advising more than 30 Japanese and American corporations and institutions, Takefuji Lab is literally the long-lines lab.