A robust and low-power synchronization technique of coarse-and-fine conversion parts in ring-oscillator-based time-to-digital converters. - Takayuki Okazawa; Ippei Akita (ICECS, 2017)

A 181NW 970µG✓HZ Accelerometer Analog Front-End Employing Feedforward Noise Reduction Technique. - Ippei Akita; Takayuki Okazawa; Yoshihiko Kurui; Akira Fujimoto; Takashi Asano 002 (VLSI Circuits, 2018)

A Dynamic Latched Comparator Using Area-Efficient Stochastic Offset Voltage Detection Technique. - Takayuki Okazawa; Ippei Akita (IEICE Trans. Electron., 2018)

A Time-Domain Analog Spatial Compressed Sensing Encoder for Multi-Channel Neural Recording. - Takayuki Okazawa; Ippei Akita (Sensors, 2018)

A Feedforward Noise Reduction Technique in Capacitive MEMS Accelerometer Analog Front-End for Ultra-Low-Power IoT Applications. - Ippei Akita; Takayuki Okazawa; Yoshihiko Kurui; Akira Fujimoto; Takashi Asano 002 (IEEE J. Solid State Circuits, 2020)