Resonant Tunneling Transistor and Its Application to Multiple-Valued Logic Circuits. - Takao Waho (ISMVL, 1995)

A Literal Gate Using Resonant-Tunneling Devices. - Takao Waho; Kevin J. Chen; Masafumi Yamamoto (ISMVL, 1996)

Application of Resonant-Tunneling Quaternary Quantizer to Ultrahigh-Speed A/D Converter. - Takao Waho; Masafumi Yamamoto (ISMVL, 1997)

Ultrafast Ternary Quantizer using Resonant Tunneling Devices. - Toshihiro Itoh; Takao Waho; Koichi Maezawa; Masafumi Yamamoto (ISMVL, 1998)

Resonant-tunneling diode and HEMT logic circuits with multiple thresholds and multilevel output. - Takao Waho; Kevin J. Chen; Masafumi Yamamoto (IEEE J. Solid State Circuits, 1998)

Ultrahigh-Speed Circuits Using Resonant Tunneling Devices. - Masafumi Yamamoto; Hideaki Matsuzaki; Toshihiro Itoh; Takao Waho; T. Akeyoshi; J. Osaka (Great Lakes Symposium on VLSI, 1999)

Novel Resonant-Tunneling Multiple-Threshold Logic Circuit Based on Switching Sequence Detection. - Takao Waho; Kazufumi Hattori; Kouji Honda (ISMVL, 2000)

Flash Analog-to-Digital Converter Using Resonant-Tunneling Multiple-Valued Circuits. - Takao Waho; Kazufumi Hattori; Y. Takamatsu (ISMVL, 2001)

An Impact of Introducing Multi-Level Signals to a Bandpass Cascaded Delta-Sigma Modulator. - Takao Waho; Shin-ya Kobayashi; Koji Matsuura (ISMVL, 2002)

A dynamic element matching circuit for multi-bit delta-sigma modulators. - Ryozo Katoh; Shin-ya Kobayashi; Takao Waho (ASP-DAC, 2004)

A novel delta-sigma modulator using resonant-tunneling quantizers. - Masaru Chibashi; Keisuke Eguchi; Takao Waho (ISCAS (1), 2004)

Multiple-Input Resonant-Tunneling Logic Gates for Flash A/D Converter Applications. - Yuki Tsuji; Takao Waho (ISMVL, 2004)

A novel oscillation circuit using a resonant-tunneling diode. - Naokazu Muramatsu; Hiroshi Okazaki; Takao Waho (ISCAS (3), 2005)

A Design of 10-GHz Delta-Sigma Modulator using a 4-Level Differential Resonant-Tunneling Quantizer. - Keisuke Eguchi; Masaru Chibashi; Takao Waho (ISMVL, 2005)

A fully-differential resonant-tunneling circuit. - Masaru Chibashi; Keisuke Eguchi; Shinpei Nakagawa; Takao Waho (IEICE Electron. Express, 2005)

Novel 4RTD Logic Circuits. - Hideaki Yamada; Takao Waho (IEICE Trans. Electron., 2005)

A 6-bit low-power compact flash ADC using current-mode threshold logic gates. - Shunsuke Akiyama; Takao Waho (ISCAS, 2006)

A Feedback-Signal Shaping Technique for Multi-Level Continuous-Time Delta-Sigma Modulators with Clock-Jitter. - Mitsuhiro Tanihata; Takao Waho (ISMVL, 2006)

A Design of Continuous-Time Delta-Sigma Modulators Using a Fully-Differential Resonant-Tunneling Comparator. - Keisuke Eguchi; Masaru Chibashi; Shinpei Nakagawa; Mitsuhiro Tanihata; Takao Waho (IEICE Trans. Electron., 2006)

A design of multi-GHz continuous-time bandpass filters using 0.1-μm HEMT technology. - Shunsuke Nakamura; Uichiro Omae; Hiroshi Watanabe; Takao Waho (ECCTD, 2007)

A Four-Resonant-Tunneling-Diode (4RTD) NAND/NOR Logic Gate. - Takao Waho; Akinori Yamada; Hiroki Okuyama; Victor Khorenko; Thai Do; Werner Prost (ISCAS, 2007)

A Ternary Analog-to-Digital Converter System. - Tomoki Tanoue; Munehiko Nagatani; Takao Waho (ISMVL, 2007)

Special Section on Fundamentals and Applications of Advanced Semiconductor Devices. - Takao Waho (IEICE Trans. Electron., 2007)

An ultrahigh-speed full adder using resonant-tunneling logic gates. - Takao Waho; Hiroki Okuyama; Tomohiko Ebata; Ryousuke Kato (APCCAS, 2008)

A 3/7-Level Mixed-Mode Algorithmic Analog-to-Digital Converter. - Kazuki Akutagawa; Kazuya Machida; Takao Waho (ISMVL, 2008)

Special Section on Heterostructure Microelectronics with TWHM 2007. - Takao Waho (IEICE Trans. Electron., 2008)

A Design of HEMT Comparators for Ultrahigh-Speed A/D Conversion. - Hiroshi Watanabe; Shunsuke Nakamura; Takao Waho (IEICE Trans. Electron., 2008)

A Bandpass Continuous-time SigmaDelta Modulator using a Parallel-DAC to Reduce Jitter Sensitivity. - Fumiyuki Adachi; Kazuya Machida; Takao Waho (ISCAS, 2009)

Time-Interleaved Polyphase Decimation Filter Using Signed-Digit Adders. - Masaki Murozuka; Kazumasa Ikeura; Fumiyuki Adachi; Kazuya Machida; Takao Waho (ISMVL, 2009)

A low-power delta-sigma modulator using dynamic-source-follower integrators. - Ryoto Yaguchi; Fumiyuki Adachi; Takao Waho (ICECS, 2010)

Enhancement of comparator operation speed by using negative-differential-resistance devices. - Tomohiko Ebata; Uichiro Omae; Kazuya Machida; Keita Hoshi; Takao Waho (ISCAS, 2010)

A Low-Power Successive Approximation Analog-to-Digital Converter Based on 2-Bit/Step Comparison. - Naoki Sugiyama; Hiroshi Noto; Yoshito Nishigami; Ryosuke Oda; Takao Waho (ISMVL, 2010)

Time-Domain Multi-bit DeltaSigma Analog-to-Digital Converter. - Kazuki Kuribayashi; Kazuya Machida; Yuji Toyama; Takao Waho (ISMVL, 2011)

A Dynamic Source-Follower Integrator and Its Application to ΔΣ Modulators. - Ryoto Yaguchi; Fumiyuki Adachi; Takao Waho (IEICE Trans. Electron., 2011)

A low-distortion switched-source-follower track-and-hold circuit. - Akinori Moriyama; Satoshi Taniyama; Takao Waho (ICECS, 2012)

Energy Efficiency of Multi-bit delta-sigma Modulators Using Inverter-based Integrators. - Hiroaki Kotani; Ryoto Yaguchi; Takao Waho (ISMVL, 2012)

InAs Nanowire Circuits Fabricated by Field-Assisted Self-Assembly on a Host Substrate. - Kai Blekker; René Richter; Ryosuke Oda; Satoshi Taniyama; Oliver Benner; Gregor Keller; Benjamin Munstermann; Andrey Lysov; Ingo Regolin; Takao Waho; Werner Prost (IEICE Trans. Electron., 2012)

A Successive Approximation A/D Converter Using Generalized Non-Binary Algorithm. - Yuki Kurisu; Tatsuya Sasaki; Takao Waho (ISMVL, 2013)

An energy-efficient dynamic-integrator-based ΔΣ modulator. - Ryo Matsushiba; Kazuma Ohara; Takao Waho (ICECS, 2014)

Non-binary Successive Approximation Analog-to-Digital Converters: A Survey. - Takao Waho (ISMVL, 2014)

An Energy-Efficient ΔΣ Modulator Using Dynamic-Common-Source Integrators. - Ryo Matsushiba; Hiroaki Kotani; Takao Waho (IEICE Trans. Electron., 2014)

Foreword. - Takao Waho (IEICE Trans. Inf. Syst., 2014)

Non-Binary Analog-to-Digital Converter Based on Amoeba-Inspired Neural Network. - Uichi Ishida; Yusuke Yamazaki; Takao Waho (ISMVL, 2015)

Analog-to-Digital Converters Using Not Multi-level But Multi-bit Feedback Paths. - Takao Waho (ISMVL, 2017)

An Analog-to-Digital Converter Using Delta-Sigma Modulator Network. - Takao Waho (ISMVL, 2018)

A Noise-shaping Analog-to-Digital Converter using a ΔΣ Modulator Feedforward Network. - Takao Waho (FLAP, 2018)

A delta-sigma-modulator feedforward network for a non-binary analog-to-digital converter. - Takao Waho (ISMVL, 2020)

A Delta-Sigma-Modulation Multi-Channel Network with Improved Noise-Shaping Characteristics. - Tomoaki Koizumi; Takao Waho; Hitoshi Hayashi (ISCAS, 2021)

A multi-level cascaded delta-sigma modulator with reduced quantization noise leakage. - Takao Waho; Tomoaki Koizumi; Hitoshi Hayashi (ISMVL, 2021)

A ΔΣ-Modulation Feedforward Network for Non-Binary Analog-to-Digital Converters. - Takao Waho; Tomoaki Koizumi; Hitoshi Hayashi (IEICE Trans. Inf. Syst., 2021)

Delta-Sigma Domain Signal Processing: A Review with Relevant Topics in Stochastic Computing. - Takao Waho; Akihisa Koyama; Hitoshi Hayashi (ISMVL, 2023)

Signal processing with delta-sigma modulated bitstreams for artificial neurons. - Akihisa Koyama; Takao Waho; Hitoshi Hayashi (ISMVL, 2024)

Delta-Sigma Domain Signal Processing Revisited with Related Topics in Stochastic Computing. - Takao Waho; Akihisa Koyama; Hitoshi Hayashi (IEICE Trans. Inf. Syst., 2024)

Delta-sigma modulated noise-shaping bitstreams for multilayer perceptron. - Takao Waho; Akihisa Koyama; Hitoshi Hayashi (ISMVL, 2025)