1-GHz Input bandwidth 6-bit under-sampling A/D converter for UWB-IR receiver. - Tatsuo Nakagawa; Tatsuji Matsuura; Eiki Imaizumi; Junya Kudoh; Goichi Ono; Masayuki Miyazaki; Akira Maeki; Yuji Ogata; Shinsuke Kobayashi; Noboru Koshizuka; Ken Sakamura (ESSCIRC, 2007)

1-cc computer using UWB-IR for wireless sensor network. - Tatsuo Nakagawa; Masayuki Miyazaki; Goichi Ono; Ryosuke Fujiwara; Takayasu Norimatsu; Takahide Terada; Akira Maeki; Yuji Ogata; Shinsuke Kobayashi; Noboru Koshizuka; Ken Sakamura (ASP-DAC, 2008)

0.7-GHz-Bandwidth DS-UWB-IR System for Low-Power Wireless Communications. - Ryosuke Fujiwara; Akira Maeki; Kenichi Mizugaki; Goichi Ono; Tatsuo Nakagawa; Takayasu Norimatsu; Masaru Kokubo; Masayuki Miyazaki; Yasuyuki Okuma; Miki Hayakawa; Shinsuke Kobayashi; Noboru Koshizuka; et al. (IEICE Trans. Commun., 2008)

1-cc Computer: Cross-Layer Integration With UWB-IR Communication and Locationing. - Tatsuo Nakagawa; Goichi Ono; Ryosuke Fujiwara; Takayasu Norimatsu; Takahide Terada; Masayuki Miyazaki; Kei Suzuki; Kazuo Yano; Yuji Ogata; Akira Maeki; Shinsuke Kobayashi; Noboru Koshizuka; et al. (IEEE J. Solid State Circuits, 2008)

UWB-IR Receiver with Accurate Time-interval-measurement Circuit for Communication/location System. - Tatsuo Nakagawa; Ryosuke Fujiwara; Goichi Ono; Masayuki Miyazaki (ISCAS, 2009)

1-GHz Input Bandwidth Under-Sampling A/D Converter with Dynamic Current Reduction Comparator for UWB-IR Receiver. - Tatsuo Nakagawa; Tatsuji Matsuura; Eiki Imaizumi; Junya Kudoh; Goichi Ono; Masayuki Miyazaki (IEICE Trans. Electron., 2009)

Intermittent Operation Control Scheme for Reducing Power Consumption of UWB-IR Receiver. - Takahide Terada; Ryosuke Fujiwara; Goichi Ono; Takayasu Norimatsu; Tatsuo Nakagawa; Masayuki Miyazaki; Kei Suzuki; Kazuo Yano; Akira Maeki; Yuji Ogata; Shinsuke Kobayashi; Noboru Koshizuka; et al. (IEEE J. Solid State Circuits, 2009)

TOA/TDOA Hybrid Relative Positioning System Based on UWB-IR Technology. - Ryosuke Fujiwara; Kenichi Mizugaki; Tatsuo Nakagawa; Daisuke Maeda; Masayuki Miyazaki (IEICE Trans. Commun., 2011)

Accurate TOA Estimating UWB-IR Transceiver for Ranging System in Multi-Path Environment. - Ryosuke Fujiwara; Kenichi Mizugaki; Goichi Ono; Tatsuo Nakagawa; Takayasu Norimatsu; Takahide Terada; Akira Maeki; Masayuki Miyazaki (IEICE Trans. Commun., 2011)

UWB-IR Wireless Accurate Location System for Sensor Network. - Kenichi Mizugaki; Tatsuo Nakagawa; Ryosuke Fujiwara; Shinsuke Kobayashi; Noboru Koshizuka; Ken Sakamura (IEICE Trans. Commun., 2011)

Fully digital voltage-mode control based on predictive hysteresis method (FDVC-PH) for DC-DC converters. - Ming Liu; Tatsuo Nakagawa; Kenichi Osada (ISCAS, 2012)

Fluctuation tolerant read scheme for ultrafast DNA sequencing with nanopore device. - Yoshimitsu Yanagawa; Kazuo Ono; Akira Kotabe; Riichiro Takemura; Tatsuo Nakagawa; Tomio Iwasaki; Takayuki Kawahara (ISCAS, 2012)

Fluctuation Tolerant Charge-Integration Read Scheme for Ultrafast DNA Sequencing with Nanopore Device. - Kazuo Ono; Yoshimitsu Yanagawa; Akira Kotabe; Riichiro Takemura; Tatsuo Nakagawa; Tomio Iwasaki; Takayuki Kawahara (IEICE Trans. Electron., 2012)

A Fundamental Study on Differences in Heart Rates During Creative Work and Non-creative Work. - Tatsuo Nakagawa; Hiroto Inoue; Shigeomi Koshimizu (HCI (15), 2016)

27.6 Single-chip 3072ch 2D array IC with RX analog and all-digital TX beamformer for 3D ultrasound imaging. - Yusaku Katsube; Shinya Kajiyama; Takuma Nishimoto; Tatsuo Nakagawa; Yasuyuki Okuma; Yohei Nakamura; Takahide Terada; Yutaka Igarashi; Taizo Yamawaki; Toru Yazaki; Yoshihiro Hayashi; Kazuhiro Amino; et al. (ISSCC, 2017)

T/R-Switch Composed of 3 High-Voltage MOSFETs with 12.1 µW Consumption that can Perform Per-channel TX to RX Self-Loopback AC Tests for 3D Ultrasound Imaging with 3072-channel Transceiver. - Shinya Kajiyama; Yutaka Igarashi; Toru Yazaki; Yusaku Katsube; Takuma Nishimoto; Tatsuo Nakagawa; Yohei Nakamura; Yoshihiro Hayashi; Taizo Yamawaki (A-SSCC, 2019)

Single-Chip 3072-Element-Channel Transceiver/128-Subarray-Channel 2-D Array IC With Analog RX and All-Digital TX Beamformer for Echocardiography. - Yutaka Igarashi; Shinya Kajiyama; Yusaku Katsube; Takuma Nishimoto; Tatsuo Nakagawa; Yasuyuki Okuma; Yohei Nakamura; Takahide Terada; Taizo Yamawaki; Toru Yazaki; Yoshihiro Hayashi; Kazuhiro Amino; et al. (IEEE J. Solid State Circuits, 2019)

T/R Switch Composed of Three HV-MOSFETs With 12.1-μW Consumption That Enables Per-Channel Self-Loopback AC Tests and -18.1-dB Switching Noise Suppression for 3-D Ultrasound Imaging With 3072-Ch Transceiver. - Shinya Kajiyama; Yutaka Igarashi; Toru Yazaki; Yusaku Katsube; Takuma Nishimoto; Tatsuo Nakagawa; Yohei Nakamura; Yoshihiro Hayashi; Takuya Kaneko; Hiroki Ishikuro; Taizo Yamawaki (IEEE Trans. Very Large Scale Integr. Syst., 2022)