An 8Gb/s Transceiver with 3×-Oversampling 2-Threshold Eye-Tracking CDR Circuit for -36.8dB-loss Backplane. - Koji Fukuda; Hiroki Yamashita; Fumio Yuki; Masayoshi Yagyu; Ryo Nemoto; Takashi Takemoto; Tatsuya Saito; Norio Chujo; Keiichi Yamamoto; Hisaaki Kanai; Atsuhiro Hayashi (ISSCC, 2008)

A 25Gb/s laser diode driver with mutually coupled peaking inductors for optical interconnects. - Norio Chujo; Tsuneo Kawamata; Kenichi Ohhata; Toshinobu Ohno (CICC, 2010)

A 25 Gbps inductorless receiver front-end in 65-nm CMOS for serial links. - Norio Chujo; Takehito Kamimura; Goichi Ono; Fumio Yuki (ISCAS, 2010)

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 2-GHz Gain Equalizer for Analog Signal Transmission Using Feedforward Compensation by a Low-Pass Filter. - Masayoshi Takahashi; Keiichi Yamamoto; Norio Chujo; Ritsurou Orihashi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

A 25 Gb/s 65-nm CMOS Low-Power Laser Diode Driver With Mutually Coupled Peaking Inductors for Optical Interconnects. - Norio Chujo; Toshiaki Takai; Toshiki Sugawara; Yasunobu Matsuoka; Daichi Kawamura; Koichiro Adachi; Tsuneo Kawamata; Tsuneo Ohno; Kenichi Ohhata (IEEE Trans. Circuits Syst. I Regul. Pap., 2011)

A 25-Gb/s 2.2-W optical transceiver using an analog FE tolerant to power supply noise and redundant data format conversion in 65-nm CMOS. - Takashi Takemoto; Hiroki Yamashita; Takehito Kamimura; Fumio Yuki; Noboru Masuda; Hidehiro Toyoda; Norio Chujo; Kenji Kogo; Yong Lee; Shinji Tsuji; Shinji Nishimura (VLSIC, 2012)

High-frequency circuit design for 25 Gb/s×4 optical transceiver. - Norio Chujo; Takashi Takemoto; Fumio Yuki; Hiroki Yamashita (ASP-DAC, 2013)

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)

Compact and power-efficient 100-Gbps CMOS-based transceiver. - Takashi Takemoto; Hiroki Yamashita; Fumio Yuki; Shinji Tsuji; Yong Lee; Koichiro Adachi; Kazunori Shinoda; Yasunobu Matsuoka; Toshiki Sugawara; Shinji Nishimura; Norio Chujo; Masaaki Nido; et al. (OFC/NFOEC, 2013)

25 Gb/s 150-m Multi-Mode Fiber Transmission Using a CMOS-Driven 1.3-µm Lens-Integrated Surface-Emitting Laser. - Daichi Kawamura; Toshiaki Takai; Yong Lee; Kenji Kogo; Koichiro Adachi; Yasunobu Matsuoka; Norio Chujo; Reiko Mita; Saori Hamamura; Satoshi Kaneko; Kinya Yamazaki; Yoshiaki Ishigami; et al. (IEICE Trans. Electron., 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)

A 25-Gb/s 2.2-W 65-nm CMOS Optical Transceiver Using a Power-Supply-Variation-Tolerant Analog Front End and Data-Format Conversion. - Takashi Takemoto; Hiroki Yamashita; Fumio Yuki; Noboru Masuda; Hidehiro Toyoda; Norio Chujo; Yong Lee; Shinji Tsuji; Shinji Nishimura (IEEE J. Solid State Circuits, 2014)

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)

Multi-Chips High-Speed and High-Voltage Amplifier. - Wen Li; Masami Makuuchi; Norio Chujo (APCCAS, 2021)

Bumpless Build Cube (BBCube) 3D: Heterogeneous 3D Integration Using WoW and CoW to Provide TB/s Bandwidth with Lowest Bit Access Energy. - Norio Chujo; Koji Sakui; Shinji Sugatani; Hiroyuki Ryoson; Tomoji Nakamura; Takayuki Ohba (VLSI Technology and Circuits, 2023)