Development of human sensory sensor and application to massaging chairs. - Kazuya Hiyamizu; Yoshihisa Fujiwara; Hirokazu Genno; Masashi Yasuda; Toshiki Koma (CIRA, 2003)

Non-restrictive Heart Rate Monitoring Using an Acceleration Sensor. - Shima Okada; Yoshihisa Fujiwara; Masashi Yasuda; Yuko Ohno; Masaaki Makikawa (EMBC, 2006)