15-ch Wearable Body Surface Potential Sensor for Wireless Electrocardiogram Monitoring. - Yusaku Goto; Shintaro Izumi; Ryotaro Ohara; Teppei Araki; Sho Murase; Hiroshi Kawaguchi 001 (ICCE, 2024)

An Ultrasound-Based Surveillance System for Bathroom Posture and Location Estimation. - Shun Sato; Ryotaro Ohara; M. Shahrul Amir Kamarulzaman; Yuto Yasuda; Shintaro Izumi; Hiroshi Kawaguchi 001 (ICCE, 2024)

Estimating Human Activities in Bathroom Through Sound Event Detection in Embedded Systems. - Koki Mori; Ryotaro Ohara; Takayuki Genda; Shun Sato; Shintaro Izumi; Hiroshi Kawaguchi 001 (IOTSMS, 2024)

MicroSync: Sub-Micro Second Accuracy Wireless Time Synchronization Service. - Ryotaro Ohara; Shintaro Izumi; Shoya Imanaka; Tetsuo Yamamura; Toru Ishii; Hiroshi Kawaguchi 001 (IEEE Access, 2024)

A Case Study for Improving Performances of Deep-Learning Processor with MRAM. - Ryotaro Ohara; Atsushi Fukunaga; Masakazu Taichi; Masaya Kabuto; Riku Hamabe; Masato Ikegawa; Shintaro Izumi; Hiroshi Kawaguchi 001 (IPSJ Trans. Syst. LSI Des. Methodol., 2024)

Low-Power High-Accuracy Time Synchronization Using PPI for Bluetooth-Based IoT Systems. - Ryotaro Ohara; Shintaro Izumi; Shoya Imanaka; Tetsuo Yamamura; Toru Ishii; Hiroshi Kawaguchi 001 (ICCE, 2025)

1W8R 20T SRAM Codebook for 20% Energy Reduction in Mixed-precision Deep-learning Inference Processor System. - Ryotaro Ohara; Masaya Kabuto; Atsushi Fukunaga; Masakazu Taichi; Yuto Yasuda; Riku Hamabe; Shintaro Izumi; Hiroshi Kawaguchi 001 (IPSJ Trans. Syst. LSI Des. Methodol., 2025)