This author has not been identified. Look up 'Yasushi Yuminaka' in GoogleThis author has not been identified. Look up 'Natsuki Sato' in GoogleThis author has not been identified. Look up 'Takahito Chigira' in GoogleThis author has not been identified. Look up 'Kohei Toyoda' in GoogleThis author has not been identified. Look up 'Yosuke Iijima' in Google