This author has not been identified. Look up 'Keiichiro Sato' in GoogleThis author has not been identified. Look up 'Ryoichi Shinkuma' in GoogleThis author has not been identified. Look up 'Takehiro Sato' in GoogleThis author has not been identified. Look up 'Eiji Oki' in GoogleThis author has not been identified. Look up 'Takanori Iwai' in GoogleThis author has not been identified. Look up 'Dai Kanetomo' in GoogleThis author has not been identified. Look up 'Kozo Satoda' in Google