Development of Oxygen Sensor Using Fiber-optics Coupler. - Eiji Toba; Masahiro Ichikawa; Junji Kazama; Toyonori Nishimatsu; Hiroaki Aizawa (J. Robotics Mechatronics, 1998)

Development of Vital Sign Sensor by Using Fiber-optics. - Eiji Toba; Takahiro Shimada; Tuyoshi Kamoto; Toyonori Nishimatsu; Hiroaki Ishizawa (J. Robotics Mechatronics, 2000)

Measurement of pesticide residues in food based on diffuse reflectance IR spectroscopy. - Hiroaki Ishizawa; Toyonori Nishimatsu; Eiji Toba (IEEE Trans. Instrum. Meas., 2002)