Low-power ASK receiver circuit for wireless communication system. - Toru Yazaki; Hiroya Yamamoto; Akira Hyogo; Keitaro Sekine (APCCAS (2), 2002)

17 Gb/s VCSEL driver using double-pulse asymmetric emphasis technique in 90-nm CMOS for optical interconnection. - Kenichi Ohhata; Hironori Imamura; Toshinobu Ohno; Takaya Taniguchi; Kiichi Yamashita; Toru Yazaki; Norio Chujo (ISCAS, 2010)

A 4× 25-to-28Gb/s 4.9mW/Gb/s -9.7dBm high-sensitivity optical receiver based on 65nm CMOS for board-to-board interconnects. - Takashi Takemoto; Hiroki Yamashita; Toru Yazaki; Norio Chujo; Yong Lee; Yasunobu Matsuoka (ISSCC, 2013)

A 25-Gb/s × 4-Ch, 8 × 8 mm2, 2.8-mm thick compact optical transceiver module for on-board optical interconnect. - Norio Chujo; Toru Yazaki; Toshiaki Takai; Daichi Kawamura; Yasunobu Matsuoka; Yong Lee; Toshiki Sugawara; Hiroki Yamashita; Takashi Takemoto; Yoshiaki Ishigami; Kinya Yamazaki; Yoshinori Sunaga; et al. (OFC/NFOEC, 2013)

25-Gbps×4 optical transmitter with adjustable asymmetric pre-emphasis in 65-nm CMOS. - Toru Yazaki; Norio Chujo; Hiroki Yamashita; Takashi Takemoto; Yong Lee; Yasunobu Matsuoka (ISCAS, 2014)

Automatic adjustment system for optical interconnection transmitter using improved particle swarm optimization. - Kenichi Ohhata; Hiroki Nakahara; Takuya Inoue; Toru Yazaki; Norio Chujo; Takuma Nishimoto (ISIC, 2014)

A 25-to-28 Gb/s High-Sensitivity (-9.7 dBm) 65 nm CMOS Optical Receiver for Board-to-Board Interconnects. - Takashi Takemoto; Hiroki Yamashita; Toru Yazaki; Norio Chujo; Yong Lee; Yasunobu Matsuoka (IEEE J. Solid State Circuits, 2014)

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)

Time-Shared DAC in SAR ADC for Tx Beamforming of Ultrasound Application. - Toru Yazaki; Akira Hyogo (ISPACS, 2018)

25-Gbps 3-mW/Gbps/ch VCSEL Driver Circuit in 65-nm CMOS for Multichannel Optical Transmitter. - Toru Yazaki; Norio Chujo; Takeshi Takemoto; Hiroki Yamashita; Akira Hyogo (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2018)

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)