Takao Waho

Kai Blekker, Rene Richter, Ryosuke Oda, Satoshi Taniyama, Oliver Benner, Gregor Keller, Benjamin Munstermann, Andrey Lysov, Ingo Regolin, Takao Waho, Werner Prost: InAs Nanowire Circuits Fabricated by Field-Assisted Self-Assembly on a Host Substrate. IEICE Transactions 95-C(8): 1369-1375 (2012)

Hiroaki Kotani, Ryoto Yaguchi, Takao Waho: Energy Efficiency of Multi-bit delta-sigma Modulators Using Inverter-based Integrators. ISMVL 2012: 203-207

Ryoto Yaguchi, Fumiyuki Adachi, Takao Waho: A Dynamic Source-Follower Integrator and Its Application to ΔΣ Modulators. IEICE Transactions 94-C(5): 802-806 (2011)

Kazuki Kuribayashi, Kazuya Machida, Yuji Toyama, Takao Waho: Time-Domain Multi-bit DeltaSigma Analog-to-Digital Converter. ISMVL 2011: 254-258

Ryoto Yaguchi, Fumiyuki Adachi, Takao Waho: A low-power delta-sigma modulator using dynamic-source-follower integrators. ICECS 2010: 551-554

Tomohiko Ebata, Uichiro Omae, Kazuya Machida, Keita Hoshi, Takao Waho: Enhancement of comparator operation speed by using negative-differential-resistance devices. ISCAS 2010: 3020-3023

Naoki Sugiyama, Hiroshi Noto, Yoshito Nishigami, Ryosuke Oda, Takao Waho: A Low-Power Successive Approximation Analog-to-Digital Converter Based on 2-Bit/Step Comparison. ISMVL 2010: 325-330

Fumiyuki Adachi, Kazuya Machida, Takao Waho: A Bandpass Continuous-time SigmaDelta Modulator using a Parallel-DAC to Reduce Jitter Sensitivity. ISCAS 2009: 2261-2264

Masaki Murozuka, Kazumasa Ikeura, Fumiyuki Adachi, Kazuya Machida, Takao Waho: Time-Interleaved Polyphase Decimation Filter Using Signed-Digit Adders. ISMVL 2009: 245-249

Hiroshi Watanabe, Shunsuke Nakamura, Takao Waho: A Design of HEMT Comparators for Ultrahigh-Speed A/D Conversion. IEICE Transactions 91-C(5): 688-692 (2008)

Takao Waho: Special Section on Heterostructure Microelectronics with TWHM 2007. IEICE Transactions 91-C(7): 983 (2008)

Kazuki Akutagawa, Kazuya Machida, Takao Waho: A 3/7-Level Mixed-Mode Algorithmic Analog-to-Digital Converter. ISMVL 2008: 174-179

Takao Waho: Special Section on Fundamentals and Applications of Advanced Semiconductor Devices. IEICE Transactions 90-C(5): 915-916 (2007)

Takao Waho, Akinori Yamada, Hiroki Okuyama, Victor Khorenko, Thai Do, Werner Prost: A Four-Resonant-Tunneling-Diode (4RTD) NAND/NOR Logic Gate. ISCAS 2007: 129-132

Tomoki Tanoue, Munehiko Nagatani, Takao Waho: A Ternary Analog-to-Digital Converter System. ISMVL 2007: 36

Keisuke Eguchi, Masaru Chibashi, Shinpei Nakagawa, Mitsuhiro Tanihata, Takao Waho: A Design of Continuous-Time Delta-Sigma Modulators Using a Fully-Differential Resonant-Tunneling Comparator. IEICE Transactions 89-C(7): 979-984 (2006)

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

Mitsuhiro Tanihata, Takao Waho: A Feedback-Signal Shaping Technique for Multi-Level Continuous-Time Delta-Sigma Modulators with Clock-Jitter. ISMVL 2006: 20

Masaru Chibashi, Keisuke Eguchi, Shinpei Nakagawa, Takao Waho: A fully-differential resonant-tunneling circuit. IEICE Electronic Express 2(7): 221-225 (2005)

Hideaki Yamada, Takao Waho: Novel 4RTD Logic Circuits. IEICE Transactions 88-C(4): 699-704 (2005)

Naokazu Muramatsu, Hiroshi Okazaki, Takao Waho: A novel oscillation circuit using a resonant-tunneling diode. ISCAS (3) 2005: 2341-2344

Keisuke Eguchi, Masaru Chibashi, Takao Waho: A Design of 10-GHz Delta-Sigma Modulator using a 4-Level Differential Resonant-Tunneling Quantizer. ISMVL 2005: 43-47

Ryozo Katoh, Shin-ya Kobayashi, Takao Waho: A dynamic element matching circuit for multi-bit delta-sigma modulators. ASP-DAC 2004: 569-570

Masaru Chibashi, Keisuke Eguchi, Takao Waho: A novel delta-sigma modulator using resonant-tunneling quantizers. ISCAS (1) 2004: 533-536

Yuki Tsuji, Takao Waho: Multiple-Input Resonant-Tunneling Logic Gates for Flash A/D Converter Applications. ISMVL 2004: 8-13

Takao Waho, Shin-ya Kobayashi, Koji Matsuura: An Impact of Introducing Multi-Level Signals to a Bandpass Cascaded Delta-Sigma Modulator. ISMVL 2002: 61-66

Takao Waho, Kazufumi Hattori, Y. Takamatsu: Flash Analog-to-Digital Converter Using Resonant-Tunneling Multiple-Valued Circuits. ISMVL 2001: 94-99

Takao Waho, Kazufumi Hattori, Kouji Honda: Novel Resonant-Tunneling Multiple-Threshold Logic Circuit Based on Switching Sequence Detection. ISMVL 2000: 317-322

Masafumi Yamamoto, Hideaki Matsuzaki, Toshihiro Itoh, Takao Waho, T. Akeyoshi, J. Osaka: Ultrahigh-Speed Circuits Using Resonant Tunneling Devices. Great Lakes Symposium on VLSI 1999: 150-153

Toshihiro Itoh, Takao Waho, K. Maezawa, Masafumi Yamamoto: Ultrafast Ternary Quantizer using Resonant Tunneling Devices. ISMVL 1998: 13-18

Takao Waho, Masafumi Yamamoto: Application of Resonant-Tunneling Quaternary Quantizer to Ultrahigh-Speed A/D Converter. ISMVL 1997: 35-40

Takao Waho, Kevin J. Chen, Masafumi Yamamoto: A Literal Gate Using Resonant-Tunneling Devices. ISMVL 1996: 68-73

Takao Waho: Resonant Tunneling Transistor and Its Application to Multiple-Valued Logic Circuits. ISMVL 1995: 130-