This author has not been identified. Look up 'Yusuke Fukazawa' in GoogleThis author has not been identified. Look up 'Naoki Yamamoto' in GoogleThis author has not been identified. Look up 'Takashi Hamatani' in GoogleThis author has not been identified. Look up 'Keiichi Ochiai' in GoogleThis author has not been identified. Look up 'Akira Uchiyama' in GoogleThis author has not been identified. Look up 'Ken Ohta' in Google