This author has not been identified. Look up 'Isao Shimoyama' in GoogleThis author has not been identified. Look up 'Takashi Yasuda' in GoogleThis author has not been identified. Look up 'Hirofumi Miura' in GoogleThis author has not been identified. Look up 'Yayoi Kubo Fujisawa' in GoogleThis author has not been identified. Look up 'Yuichi Ezura' in Google