Phantom with Pulsatile Arteries to Investigate the Influence of Blood Vessel Depth on Pulse Oximeter Signal Strength. - Norbert Stuban; Masatsugu Niwayama; Hunor Santha (Sensors, 2012)

Development of an Implantable Flexible Probe for Simultaneous Near-Infrared Spectroscopy and Electrocorticography. - Toshitaka Yamakawa; Takao Inoue; Yeting He; Masami Fujii; Michiyasu Suzuki; Masatsugu Niwayama (IEEE Trans. Biomed. Eng., 2014)

Development of NIRS probe based on LED sensing that enables multimodal integration. - Shun Esaki-Non; Toshitaka Yamakawa; Masatsugu Niwayama (EMBC, 2015)

Implantable Multi-Modality Probe for Subdural Simultaneous Measurement of Electrophysiology, Hemodynamics, and Temperature Distribution. - Toshitaka Yamakawa; Takao Inoue; Masatsugu Niwayama; Fumiaki Oka; Hirochika Imoto; Sadahiro Nomura; Michiyasu Suzuki (IEEE Trans. Biomed. Eng., 2019)

Tissue Oximeter with Selectable Measurement Depth Using Spatially Resolved Near-Infrared Spectroscopy. - Masatsugu Niwayama; Naoki Unno (Sensors, 2021)