Source: https://www.niitsulab.info/publications/
Timestamp: 2019-04-22 14:44:16+00:00

Document:
Kichi Niitsu, ”An Energy-Autonomous Biosensing Platform Using Supply-Sensing CMOS Integrated Sensor and Bio Fuel Cell for Next-Generation Healthcare IoT", Japanese Journal of Applied Physics.
Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya Murakami, Cong Dang Bui, Atsuki Kobayashi, and Kiichi Niitsu, ”A 385 ×385 μm20.165V 0.27nW Fully-Integrated Supply-Modulated OOK Transmitterin 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens", IEICE Trans. Elec, Jul. 2019.
Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya Murakami, Cong Dang Bui, Atsuki Kobayashi, and Kiichi Niitsu, ”An FSK Inductive-Coupling Transceiver Using 60mV 0.64fJ/bit 0.0016 mm2Load-Modulated transmitter and LC-Oscillator-Based Receiver in 65 nm CMOS for Energy-Budget-Unbalanced Application", IEICE Trans. Elec, Jul. 2019.
Shigeki Arata, Kenya Hayashi, Xu Ge, Shunya Min Proc. urakami, Cong Dang Bui, Atsuki Kobayashi, and Kiichi Niitsu, ”Yield and open-circuit-voltage enhancement of 0.36 mm2 Solid-State CMOS-compatible glucose fuel cell by using repeated separator coating”, Japanese Journal of Applied Physics.
Yuya Nishio, Atsuki Kobayashi, and Kiichi Niitsu, ”Design and Calibration of a Small-Footprint, Low-Frequency, and Low-Power Gate Leakage Timer Using Differential Leakage Technique”, IEICE Transactions on Electronics, E102.C(4):269-275, Apr. 2019.
Kiichi Niitsu, Taiki Nakanishi, Shunya Murakami, Maya Matsunaga, Atsuki Kobayashi, Nissar Mohammad Karim, Jun Ito, Naoya Ozawa, Tetsunari Hase, Hiromasa Tanaka, Mitsuo Sato, Hiroki Kondo, Kenji Ishikawa, Hidefumi Odaka, Yoshinori Hasegawa, Masaru Hori, and Kazuo Nakazato, "A 65-nm CMOS Fully Integrated Analysis Platform Using an On-Chip Vector Network Analyzer and a Transmission-Line-Based Detection Window for Analyzing Circulating Tumor Cell and Exosome", IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), vol.13, pp.470-479, 2019.
Maya Matsunaga, Taiki Nakanishi, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu, "Design and analysis of a three-dimensional millimeter-wave frequency-shift based CMOS biosensor using vertically stacked spiral inductors in LC oscillators", Analog Integrated Circuits and Signal Processing (ALOG), vol.98, no.3, pp.453-464, Mar. 2019.
Kenya Hayashi, Shigeki Arata, Shunya Murakami, Yuya Nishio, Atsuki Kobayashi, and Kiichi Niitsu, "A 6.1nA Fully-Integrated CMOS Supply-Modulated OOK Transmitter in 55nm DDC CMOS for Glass-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens", IEEE Transactions on Circuits and Systems II (TCAS-II), vol.65, no.10, pp.1360-1364, Oct. 2018.
Kiichi Niitsu, Atsuki Kobayashi, Kenya Hayashi, Yuya Nishio, Kei Ikeda, Takashi Ando, Yudai Ogawa, Hiroyuki Kai, Matsuhiko Nishizawa, and Kazuo Nakazato, "A Self-Powered Supply-Sensing Biosensor Platform Using Bio Fuel Cell and Low-Voltage, Low-Cost CMOS Supply-Controlled Ring Oscillator with Inductive-Coupling Transmitter for Healthcare IoT", IEEE Transactions on Circuits and Systems I (TCAS-I), vol.65, no.9, pp.2784-2796, Sep. 2018.
Shigeki Arata, Kenya Hayashi, Yuya Nishio, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu, "Wafer-scale development and experimental verification of 0.36-mm^2 228-mV open-circuit-voltage solid-state CMOS-compatible glucose fuel cell for healthcare IoT application", Japanese Journal of Applied Physics, vol.57, no.4S, pp.04FM04, Mar. 2018.
Maya Matsunaga, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu, "Design Trade-Off between Spatial Resolution and Power Consumption in CMOS Biosensor Circuit Based on Millimeter-Wave LC-Oscillator Array", Japanese Journal of Applied Physics, vol.57, no.3S2, pp.03EC02, Jan. 2018.
Taiki Nakanishi, Maya Matsunaga, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu, "A 40-GHz fully integrated circulating tumor cell analysis vector network analyzer in 65-nm CMOS technology with coplanar-line-based detection area", Japanese Journal of Applied Physics, vol.57, no.3S2, pp.03EC01, Jan. 2018.
Keisuke Itakura, Keisuke Kayano, Kazuo Nakazato and Kiichi Niitsu, "Theoretical Analysis and Simulation Study of Low-Power CMOS Electrochemical Impedance Spectroscopy Biosensor in 55nm DDC Technology for Cell-State Monitoring", Japanese Journal of Applied Physics, vol.57, no.1S, pp.01AG02, Jan. 2018.
Atsuki Kobayashi, Kei Ikeda, Yudai Ogawa, Hiroyuki Kai, Matsuhiko Nishizawa, Kazuo Nakazato, and Kiichi Niitsu, "Design and Experimental Verification of 0.19 V 53 μW 65 nm CMOS Integrated Supply-Sensing Sensor with a Supply-Insensitive Temperature Sensor and Inductive-Coupling Transmitter for a Self-Powered Bio-Sensing Using a Biofuel Cell", IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), vol.11, no.6, pp.1313-1323, Dec. 2017.
Kei Ikeda, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu, "Design and Electrochemical Measurement of a Current-Mode Analog-to-Time Converter with Short-Pulse Output Capability Using Local Intra-Cell Activation for High-Speed Time-Domain Biosensor Array", Analog Integrated Circuits and Signal Processing (ALOG), vol.92, no.3, pp.403-413, Jun. 2017.
Kohei Gamo, Kazuo Nakazato, and Kiichi Niitsu, "A Current-Integration-Based CMOS Amperometric Sensor with 1024 × 1024 Bacteria-Sized Microelectrode Array for High-Sensitivity Bacteria Counting", IEICE Transactions on Electronics, Vol.E100-C, No.6, pp. 602-606, Jun. 2017.
Kei Ikeda, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu, "Design and Analysis of Scalability in Current-Mode Analog-to-Time Converter for an Energy-Efficient and High-Resolution CMOS Biosensor Array", IEICE Transactions on Electronics, vol.E100-C, No.6, pp.597-601, Jun. 2017.
Yuuki Yamaji, Kazuo Nakazato, and Kiichi Niitsu, "Sub-1-V CMOS-Based Electrophoresis Using Electroless Gold Plating for Small-Form-Factor Biomolecule Manipulation", IEICE Transactions on Electronics, vol.E100-C, No.6, pp.592-596, Jun. 2017.
Kiichi Niitsu, Kei Ikeda, Keita Muto, and Kazuo Nakazato, "Design, Experimental Verification, and Analysis of a 1.8-V-Input-range Voltage-to-Current Converter Using Source Degeneration for Low-Noise Multimodal CMOS Biosensor Array", Japanese Journal of Applied Physics, vol.56, no.1S, pp.01AH06, Jan. 2017.
Kiichi Niitsu, Atsuki Kobayashi, Kohei Yoshida, and Kazuo Nakazato, "Design and experimental verification of CMOS Magnetic-Based Microbeads Detection Using an Asynchronous Intra-chip Inductive-Coupling Transceiver", Japanese Journal of Applied Physics, vol.56, no.1S, pp.01AH05, Jan. 2017.
Kiichi Niitsu, Takashi Ando, and Kazuo Nakazato, "Enhancement in open-circuit voltage of implantable CMOS-compatible glucose fuel cell by improving the anodic catalyst", Japanese Journal of Applied Physics, vol.56, no.1S, pp.01AH04, Jan. 2017.
Atsuki Kobayashi, Kei Ikeda, Kazuo Nakazato, and Kiichi Niitsu, "Energy-efficient and low-voltage design methodology for a supply-sensing CMOS biosensor using biofuel cells for energy-autonomous healthcare applications", Japanese Journal of Applied Physics, vol.56, no.1S, pp.01AH03, Jan. 2017.
Kohei Gamo, Kazuo Nakazato, and Kiichi Niitsu, "Design, theoretical analysis, and experimental verification of a CMOS current integrator with 1.2 × 2.05 µm2 microelectrode array for high-sensitivity bacterial counting", Japanese Journal of Applied Physics, vol.56, no.1S, pp.01AH01, Jan. 2017.
Kiichi Niitsu, Tsuyoshi Kuno, Masayuki Takihi, and Kazuo Nakazato, "Well-Shaped Microelectrode Array Structure for High-Density CMOS Amperometric Electrochemical Sensor Array", IEICE Transactions on Electronics, vol.E99-C, no.6, pp.663-666, Jun. 2016.
Kiichi Niitsu, Kohei Yoshida, and Kazuo Nakazato, "Design and experimental demonstration of low-power CMOS magnetic cell manipulation platform using charge recycling technique", Japanese Journal of Applied Physics, vol.55, no.3S2, 03DF13 (4pages), Feb. 2016.
Suiki Tanaka, Kiichi Niitsu, and Kazuo Nakazato, "A Low-Power Inverter-Based CMOS Level-Crossing A/D Converter for Low-frequency Biosignal Sensing", Japanese Journal of Applied Physics, vol.55, no.3S2, 03DF10 (7pages), Feb. 2016.
Yuuki Yamaji, Kiichi Niitsu, and Kazuo Nakazato, "Design and Experimental Verification of Low-Voltage Two-Dimensional CMOS Electrophoresis Platform with 32×32 Sample/Hold Cell Array", Japanese Journal of Applied Physics, vol.55, no.3S2, 03DF07 (5pages), Feb. 2016.
Kiichi Niitsu, Shoko Ota, Kohei Gamo, Hiroki Kondo, Masaru Hori, and Kazuo Nakazato, "Development of Microelectrode Arrays Using Electroless Plating for CMOS-Based Direct Counting of Bacterial and HeLa Cells", IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), vol.9, no.5, pp.607-619, Nov. 2015.
Kiichi Niitsu, Yusuke Osawa, Daiki Hirabayashi, Osamu Kobayashi, Takahiro J. Yamaguchi, and Haruo Kobayashi, "A CMOS PWM Transceiver Using Self-Referenced Edge Detection", IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol.23, no.6, pp.1145-1149, Jun. 2015.
Hiroki Ishihara, Kiichi Niitsu, and Kazuo Nakazato, "Analysis and Experimental Verification of DNA Single Base Polymerization Detection Using CMOS FET-Based Redox Potential Sensor Array", Japanese Journal of Applied Physics, vol.54, no.4S, 04DL05 (6pages), Mar. 2015.
Yusuke Osawa, Daiki Hirabayashi, Naohiro Harigai, Haruo Kobayashi, Osamu Kobayashi, Masanobu Tsuji, Sadayoshi Umeda, Ryoji Shiota, Noriaki Dobashi, Masafumi Watanabe, Tatsuji Matsuura, Kiichi Niitsu, Isao Shimizu, Nobukazu Takai, and Takahiro J. Yamaguchi, "Phase Noise Measurement and Testing with Delta-Sigma TDC", Key Engineering Materials, vol.643, pp.149-156, May 2015.
Guanglei Jin, Hao Chen, Chuan Gao, Yunpeng Zhang, Murong Li, Haruo Kobayashi, Shu Wu, Nobukazu Takai, Kiichi Niitsu, and Khayrollah Hadidi, "Digital Auto-Tuning for Center Frequency and Q-Factor of Gm-C Band-Pass Filter", Key Engineering Materials, vol.Advanced Micro-Device Engineering V, pp.123-130, May. 2015.
Kiichi Niitsu, Naohiro Harigai, Takahiro J. Yamaguchi, and Haruo Kobayashi, "A Low-Offset Cascaded Time Amplifier with Reconfigurable Inter-Stage Connection", IEICE Electronics Express, vol.11, no.10, pp.20140203, May. 2014.
Tsuyoshi Kuno, Kiichi Niitsu, and Kazuo Nakazato, "Amperometric Electrochemical Sensor Array for On-Chip Simultaneous Imaging", Japanese Journal of Applied Physics, vol.53, 04EL01 (7pages), Feb. 2014.
Kiichi Niitsu, Kazunori Sakuma, Naohiro Harigai, Daiki Hirabayashi, Nobukazu Takai, Takahiro J. Yamaguchi, and Haruo Kobayashi, "Design Methodology and Jitter Analysis of a Delay Line for High-Accuracy On-Chip Jitter Measurements", Key Engineering Materials, vol.596, pp.176-180, Jan. 2014.
Kiichi Niitsu, Naohiro Harigai, Daiki Hirabayashi, Masato Sakurai, Takahiro J. Yamaguchi, and Haruo Kobayashi, "Analysis on a Cascaded Structure in Open-Loop Time Amplifier for High-Speed Operation", Key Engineering Materials, vol.596, pp.171-175, Jan. 2014.
Yohei Tan, Daiki Oki, Yu Liu, Yukiko Arai, Zachary Nosker, Haruo Kobayashi, Osamu Kobayashi, Tatsuji Matsuura, Zhixiang Yang, Atsuhiro Katayama, Li Quan, Ensi Li, Kiichi Niitsu, and Nobukazu Takai, "Self-Calibration Techniques of Pipeline ADCs Using Cyclic Configuration", Key Engineering Materials, vol.596, pp.181-186, Jan. 2014.
Satoshi Uemori, Masamichi Ishii, Haruo Kobayashi, Daiki Hirabayashi, Yuta Arakawa, Yuta Doi, Osamu Kobayashi, Tatsuji Matsuura, Kiichi Niitsu, Yuji Yano, Tatsuhiro Gake, Takahiro J. Yamaguchi, and Nobukazu Takai, “Multi-bit Sigma-Delta TDC Architecture with Improved Linearity”, Journal of Electronic Testing : Theory and Applications, vol.29, no.6, pp.879-892, Dec. 2013.
Kiichi Niitsu, Naohiro Harigai, and Haruo Kobayashi, "Design Methodology for Determining the Number of Stages in a Cascaded Time Amplifier to Minimize Area Consumption", IEICE Electronics Express, vol.10, no.11, pp.20130289, Jun. 2013.
Kiichi Niitsu, Naohiro Harigai, Takahiro J. Yamaguchi, and Haruo Kobayashi, "A Feed-Forward Time Amplifier Using Phase Detector and Variable Delay Line", IEICE Transactions on Electronics, vol.E96-C, no.6, pp.920-922, Jun. 2013.
Keisuke Kato, Fumitaka Abe, Kazuyuki Wakabayashi, Chuan Gao, Takafumi Yamada, Haruo Kobayashi, Osamu Kobayashi, and Kiichi Niitsu, "Two-Tone Signal Generation for ADC Testing", IEICE Transactions on Electronics, vol.E96-C, no.6, pp. 850-858, Jun. 2013.
Zachary Nosker, Yasunori Kobori, Haruo Kobayashi, Kiichi Niitsu, Nobukazu Takai, Takeshi Oomori, Takahiro Odaguchi, Isao Nakanishi, Kenji Nemoto, Jun-ichi Matsuda, "A Small, Low Power Boost Regulator Optimized for Energy Harvesting Applications", Analog Integrated Circuits and Signal Processing, vol.75, no.2, pp.207-216, Apr. 2013.
Kiichi Niitsu, Masato Sakurai, Naohiro Harigai, Daiki Hirabayashi, Daiki Oki, Takahiro J. Yamaguchi, and Haruo Kobayashi, "An Analytical Study on Jitter Accumulation in Interleaved Phase Frequency Detectors for High-Accuracy On-Chip Jitter Measurements", Key Engineering Materials, vol.534, pp.197-205, Jan. 2013.
Zachary Nosker, Yasunori Kobori, Haruo Kobayashi, Kiichi Niitsu, Nobukazu Takai, Takeshi Oomori, Takahiro Odaguchi, Isao Nakanishi, Kenji Nemoto, Jun-ichi Matsuda, "A High Efficiency, Extended Load Range Boost Regulator Optimized for Energy Harvesting Applications", Key Engineering Materials, vol.534, pp.206-219, Jan. 2013.
Kiichi Niitsu, Masato Sakurai, Naohiro Harigai, Takahiro J. Yamaguchi, and Haruo Kobayashi, "CMOS Circuits to Measure Timing Jitter Using a Self-Referenced Clock and a Cascaded Time Difference Amplifier with Duty-Cycle Compensation", IEEE Journal of Solid-State Circuits (JSSC), vol.47, no.11, pp.2701-2710, Nov. 2012.
Kazuyuki Wakabayashi, Keisuke Kato, Takafumi Yamada, Osamu Kobayashi, Haruo Kobayashi, Fumitaka Abe, and Kiichi Niitsu, "Low-Distortion Sinewave Generation Method Using Arbitrary Waveform Generator", Journal of Electronic Testing: Theory and Applications, vol.28, no.5, pp.641-651, Oct. 2012.
Kiichi Niitsu, Shusuke Kawai, Noriyuki Miura, Hiroki Ishikuro, and Tadahiro Kuroda, "A 65fJ/b Inter-Chip Inductive-Coupling Data Transceivers Using Charge-Recycling Technique for Low-Power Inter-Chip Communication in 3-D System Integration", IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol.20, no.7, pp.1285-1294, Jul. 2012.
Jiani Ye, Zachary Nosker, Kazuyuki Wakabayashi, Takuya Yagi,Osamu Yamamoto, Nobukazu Takai, Kiichi Niitsu, Keisuke Kato, Takao Ootsuki, Isao Akiyama, and Haruo Kobayashi, "Architecture of High-Efficiency Digitally-Controlled Class-E Power Amplifier", Key Engineering Materials, vol.487, pp.285-295, Dec. 2011.
Kiichi Niitsu, Shinmo Kang, Vishal V. Kulkarni, Hiroki Ishikuro, and Tadahiro Kuroda, "A 14 GHz AC-Coupled Clock Distribution Scheme with Phase Averaging Technique Using Sigle LC-VCO and Distributed Phase Interpolators", IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol.19, no.11, pp.2058-2066, Nov. 2011.
Kiichi Niitsu, Yasufumi Sugimori, Yoshinori Kohama, Kenichi Osada, Naohiko Irie, Hiroki Ishikuro, and Tadahiro Kuroda, "Analysis and Techniques for Mitigating Interference from Power/Signal Lines and to SRAM Circuits in CMOS Inductive-Coupling Link for Low-Power 3D System Integration", IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol.19, no.10, pp.1902-1907, Oct. 2011.
Tomohiko Ogawa, Haruo Kobayashi, Satoshi Uemori, Yohei Tan, Satoshi Ito, Nobukazu Takai, Takahiro J. Yamaguchi, and Kiichi Niitsu, "Design for Testability That Reduces Linearity Testing Time of SAR ADCs”, IEICE Transactions on Electronics, vol.E94-C, no.6, pp.1061-1064, Jun. 2011.
Kiichi Niitsu, Yoshinori Kohama, Yasufumi Sugimori, Kazutaka Kasuga, Kenichi Osada, Naohiko Irie, Hiroki Ishikuro, and Tadahiro Kuroda, "Modeling and Experimental Verification of Misalignment Tolerance in Inductive-Coupling Inter-Chip Link for Low-Power 3D System Integration", IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol.18, no.8, pp.1238-1243, Aug. 2010.
Makoto Saen, Kenichi Osada, Yasuyuki Okuma, Kiichi Niitsu, Yasuhisa Shimazaki, Yasufumi Sugimori, Yoshinori Kohama, Kazutaka Kasuga, Itaru Nonomura, Naohiko Irie, Toshihiro Hattori, Atsushi Hasegawa, and Tadahiro Kuroda, "3-D System Integration of Processor and Multi-Stacked SRAMs Using Inductive-Coupling Link", IEEE Journal of Solid-State Circuits (JSSC), vol.45, no.4, pp.856-862, Apr. 2010.
Kiichi Niitsu, Yuan Yuxiang, Hiroki Ishikuro, and Tadahiro Kuroda, "A 33% Improvement in Efficiency of Wireless Inter-Chip Power Delivery by Thin Film Magnetic Material for Three-Dimensional System Integration", Japanese Journal of Applied Physics, vol.48, 04C073 (5pages), Apr. 2009.
Vishal V. Kulkarni, Muhammad Muqsith, Kiichi Niitsu, Hiroki Ishikuro and Tadahiro Kuroda, "A 750 Mb/s, 12 pJ/b, 6-to-10 GHz CMOS IR-UWB Transmitter With Embedded On-Chip Antenna", IEEE Journal of Solid-State Circuits (JSSC), vol.44, no.2, pp.394-403, Feb. 2009.
Noriyuki Miura, Hiroki Ishikuro, Kiichi Niitsu, Takayasu Sakurai, and Tadahiro Kuroda, "A 0.14pJ/bit Inductive-Coupling Transceiver with Digitally-Controlled Precise Pulse Shaping", IEEE Journal of Solid-State Circuits (JSSC), vol.43, no.1, pp.285-291, Jan. 2008.
Kiichi Niitsu, Noriyuki Miura, Mari Inoue, Yoshihiro Nakagawa, Masamoto Tago, Masayuki Mizuno, Takayasu Sakurai, and Tadahiro Kuroda, "Daisy Chain Transmitter for Power Reduction in Inductive-Coupling CMOS Link”, IEICE Transactions on Electronics, vol.E90-C, no.4, pp.829-835, Apr. 2007.
Kiichi Niitsu, Noriyuki Miura, Mari Inoue, Yoshihiro Nakagawa, Masamoto Tago, Masayuki Mizuno, Hiroki Ishikuro, and Tadahiro Kuroda, "60% Power Reduction in Inductive-Coupling Inter-Chip Link by Current-Sensing Technique", Japanese Journal of Applied Physics, vol.46, no.4B, pp.2215-2219, Apr. 2007.
Noriyuki Miura, Daisuke Mizoguchi, Mari Inoue, Kiichi Niitsu, Yoshihiro Nakagawa, Masamoto Tago, Masayuki Mizuno, Takayasu Sakurai, and Tadahiro Kuroda, "A 1Tb/s 3W Inductive-Coupling Transceiver for 3D-Stacked Inter-Chip Clock and Data Link", IEEE Journal of Solid-State Circuits (JSSC), vol.42, no.1, pp.111-122, Jan. 2007.
K.Niitsu, ”An Energy-Autonomous Biosensing Platform Using Supply-SensingCMOS Integrated Sensor and Bio Fuel Cell for Next-Generation Healthcare IoT", Japanese Journal of Applied Physics.
K.Hayashi, S.Arata, G.Xu, S.Murakami, C.D.Bui, A.Kobayashi, and K.Niitsu, ”A 385 ×385 μm20.165V 0.27nW Fully-Integrated Supply-Modulated OOK Transmitterin 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens", IEICE Trans. Elec. Jul. 2019.
K.Hayashi, S.Arata, G.Xu, S.Murakami, C.D.Bui, A.Kobayashi, and K.Niitsu, ”An FSK Inductive-Coupling Transceiver Using 60mV 0.64fJ/bit 0.0016 mm2Load-Modulated transmitter and LC-Oscillator-Based Receiver in 65 nm CMOS for Energy-Budget-Unbalanced Application", IEICE Trans. Elec. Jul. 2019.
S.Arata, K.Hayashi, X.Ge, S.Murakami, C.D.Bui, A.Kobayashi, and K.Niitsu, ”Yield and open-circuit-voltage enhancement of 0.36 mm2 Solid-State CMOS-compatible glucose fuel cell by using repeated separator coating”, Japanese Journal of Applied Physics.
Y.Nishio, A.Kobayashi, and K.Niitsu, ”Design and Calibration of a Small-Footprint, Low-Frequency, and Low-Power Gate Leakage Timer Using Differential Leakage Technique”, IEICE Transactions on Electronics, E102.C(4):269-275, Apr. 2019.
K.Niitsu, T.Nakanishi, S.Murakami, M.Matsunaga, A.Kobayashi, N.M.Karim, J.Ito, N.Ozawa, T.Hase, H.Tanaka, M.Sato, H.Kondo, K.Ishikawa, H.Odaka, Y.Hasegawa, M.Hori, and K.Nakazato, "A 65-nm CMOS Fully Integrated Analysis Platform Using an On-Chip Vector Network Analyzer and a Transmission-Line-Based Detection Window for Analyzing Circulating Tumor Cell and Exosome", IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), vol.13, pp.470-479, 2019.
M.Matsunaga, T.Nakanishi, A.Kobayashi, K.Nakazato, and K.Niitsu, "Design and analysis of a three-dimensional millimeter-wave frequency-shift based CMOS biosensor using vertically stacked spiral inductors in LC oscillators", Analog Integrated Circuits and Signal Processing (ALOG),vol.98, no.3, pp.453-464, Mar. 2019.
K.Hayashi, S.Arata, S.Murakami, Y.Nishio, A.Kobayashi, and K.Niitsu, "A 6.1nA Fully-Integrated CMOS Supply-Modulated OOK Transmitter in 55nm DDC CMOS for Glass-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens", IEEE Transactions on Circuits and Systems II (TCAS-II), vol.65, no.10, pp.1360-1364, Oct. 2018.
K.Niitsu, A.Kobayashi, K.Hayashi, Y.Nishio, K.Ikeda, T.Ando, Y.Ogawa, H.Kai, M.Nishizawa, and K.Nakazato, "A Self-Powered Supply-Sensing Biosensor Platform Using Bio Fuel Cell and Low-Voltage, Low-Cost CMOS Supply-Controlled Ring Oscillator with Inductive-Coupling Transmitter for Healthcare IoT", IEEE Transactions on Circuits and Systems I (TCAS-I), vol.65, no.9, pp.2784-2796, Sep. 2018.
S.Arata, K.Hayashi, Y.Nishio, A.Kobayashi, K.Nakazato, and K.Niitsu, "Wafer-scale development and experimental verification of 0.36-mm^2 228-mV open-circuit-voltage solid-state CMOS-compatible glucose fuel cell for healthcare IoT application", Japanese Journal of Applied Physics, vol.57, no.4S, pp.04FM04, Mar. 2018.
M.Matsunaga, A.Kobayashi, K.Nakazato, and K.Niitsu, "Design Trade-Off between Spatial Resolution and Power Consumption in CMOS Biosensor Circuit Based on Millimeter-Wave LC-Oscillator Array", Japanese Journal of Applied Physics, vol.57, no.3S2, pp.03EC02, Jan. 2018.
T.Nakanishi, M.Matsunaga, A.Kobayashi, K.Nakazato, and K.Niitsu, "A 40-GHz fully integrated circulating tumor cell analysis vector network analyzer in 65-nm CMOS technology with coplanar-line-based detection area", Japanese Journal of Applied Physics, vol.57, no.3S2, pp.03EC01, Jan. 2018.
K.Itakura, K.Kayano, K.Nakazato and K.Niitsu, "Theoretical Analysis and Simulation Study of Low-Power CMOS Electrochemical Impedance Spectroscopy Biosensor in 55nm DDC Technology for Cell-State Monitoring", Japanese Journal of Applied Physics, vol.57, no.1S, pp.01AG02, Jan. 2018.
A.Kobayashi, K.Ikeda, Y.Ogawa, H.Kai, M.Nishizawa, K.Nakazato, and K.Niitsu, "Design and Experimental Verification of 0.19 V 53 μW 65 nm CMOS Integrated Supply-Sensing Sensor with a Supply-Insensitive Temperature Sensor and Inductive-Coupling Transmitter for a Self-Powered Bio-Sensing Using a Biofuel Cell", IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), vol.11, no.6, pp.1313-1323, Dec. 2017.
K.Ikeda, A.Kobayashi, K.Nakazato, and K.Niitsu, "Design and Electrochemical Measurement of a Current-Mode Analog-to-Time Converter with Short-Pulse Output Capability Using Local Intra-Cell Activation for High-Speed Time-Domain Biosensor Array", Analog Integrated Circuits and Signal Processing (ALOG), vol.92, no.3, pp.403-413, Jun. 2017.
K.Gamo, K.Nakazato, and K.Niitsu, "A Current-Integration-Based CMOS Amperometric Sensor with 1024 × 1024 Bacteria-Sized Microelectrode Array for High-Sensitivity Bacteria Counting", IEICE Transactions on Electronics, Vol.E100-C, No.6, pp.602-606, Jun. 2017.
K.Ikeda, A.Kobayashi, K.Nakazato, and K.Niitsu, "Design and Analysis of Scalability in Current-Mode Analog-to-Time Converter for an Energy-Efficient and High-Resolution CMOS Biosensor Array", IEICE Transactions on Electronics, vol.E100-C, No.6, pp.597-601, Jun. 2017.
Y.Yamaji, K.Nakazato, and K.Niitsu, "Sub-1-V CMOS-Based Electrophoresis Using Electroless Gold Plating for Small-Form-Factor Biomolecule Manipulation", IEICE Transactions on Electronics, vol.E100-C, No.6, pp.592-596, Jun. 2017.
K.Niitsu, K.Ikeda, K.Muto, and K.Nakazato, "Design, Experimental Verification, and Analysis of a 1.8-V-Input-range Voltage-to-Current Converter Using Source Degeneration for Low-Noise Multimodal CMOS Biosensor Array", Japanese Journal of Applied Physics, vol.56, no.1S, pp.01AH06, Jan. 2017.
K.Niitsu, A.Kobayashi, K.Yoshida, and K.Nakazato, "Design and experimental verification of CMOS Magnetic-Based Microbeads Detection Using an Asynchronous Intra-chip Inductive-Coupling Transceiver", Japanese Journal of Applied Physics, vol.56, no.1S, pp.01AH05, Jan. 2017.
K.Niitsu, T.Ando, and K.Nakazato, "Enhancement in open-circuit voltage of implantable CMOS-compatible glucose fuel cell by improving the anodic catalyst", Japanese Journal of Applied Physics, vol.56, no.1S, pp.01AH04, Jan. 2017.
A.Kobayashi, K.Ikeda, K.Nakazato, and K.Niitsu, "Energy-efficient and low-voltage design methodology for a supply-sensing CMOS biosensor using biofuel cells for energy-autonomous healthcare applications", Japanese Journal of Applied Physics, vol.56, no.1S, pp.01AH03, Jan. 2017.
K.Gamo, K.Nakazato, and K.Niitsu, "Design, theoretical analysis, and experimental verification of a CMOS current integrator with 1.2 × 2.05 µm2 microelectrode array for high-sensitivity bacterial counting", Japanese Journal of Applied Physics, vol.56, no.1S, pp.01AH01, Jan. 2017.
K.Niitsu, T.Kuno, M.Takihi, and K.Nakazato, "Well-Shaped Microelectrode Array Structure for High-Density CMOS Amperometric Electrochemical Sensor Array", IEICE Transactions on Electronics, vol.E99-C, no.6, pp.663-666, Jun. 2016.
K.Niitsu, K.Yoshida, and K.Nakazato, "Design and experimental demonstration of low-power CMOS magnetic cell manipulation platform using charge recycling technique", Japanese Journal of Applied Physics, vol.55, no.3S2, 03DF13 (4 pages), Feb. 2016.
S.Tanaka, K.Niitsu, and K.Nakazato, "A Low-Power Inverter-Based CMOS Level-Crossing A/D Converter for Low-frequency Biosignal Sensing", Japanese Journal of Applied Physics, vol.55, no.3S2, 03DF10 (7 pages), Feb. 2016.
Y.Yamaji, K.Niitsu, and K.Nakazato, "Design and Experimental Verification of Low-Voltage Two-Dimensional CMOS Electrophoresis Platform with 32×32 Sample/Hold Cell Array", Japanese Journal of Applied Physics, vol.55, no.3S2, 03DF07 (5 pages), Feb. 2016.
K.Niitsu, S.Ota, K.Gamo, H.Kondo, M.Hori, and K.Nakazato, "Development of Microelectrode Arrays Using Electroless Plating for CMOS-Based Direct Counting of Bacterial and HeLa Cells", IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), vol.9, no.5, pp.607-619, Nov. 2015.
K.Niitsu, Y.Osawa, D.Hirabayashi, O.Kobayashi, T.J.Yamaguchi, and H.Kobayashi, "A CMOS PWM Transceiver Using Self-Referenced Edge Detection", IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol.23, no.6, pp.1145-1149, Jun. 2015.
H.Ishihara, K.Niitsu, and K.Nakazato, "Analysis and Experimental Verification of DNA Single Base Polymerization Detection Using CMOS FET-Based Redox Potential Sensor Array", Japanese Journal of Applied Physics, vol.54, no.4S, 04DL05 (6 pages), Mar. 2015.
Y.Osawa, D.Hirabayashi, N.Harigai, H.Kobayashi, O.Kobayashi, M.Tsuji, S.Umeda, R.Shiota, N.Dobashi, M.Watanabe, T.Matsuura, K.Niitsu, I.Shimizu, N.Takai, and T.J.Yamaguchi, "Phase Noise Measurement and Testing with Delta-Sigma TDC", Key Engineering Materials, vol.643, pp.149-156, May. 2015.
G.Jin, H.Chen, C.Gao, Y.Zhang, M.Li, H.Kobayashi, S.Wu, N.Takai, K.Niitsu, and K.Hadidi, "Digital Auto-Tuning for Center Frequency and Q-Factor of Gm-C Band-Pass Filter", Key Engineering Materials, vol.Advanced Micro-Device Engineering V, pp.123-130, May. 2015.
K.Niitsu, N.Harigai, T.J.Yamaguchi, and H.Kobayashi, "A Low-Offset Cascaded Time Amplifier with Reconfigurable Inter-Stage Connection", IEICE Electronics Express, vol.11, no.10, pp.20140203, May. 2014.
T.Kuno, K.Niitsu, and K.Nakazato, "Amperometric Electrochemical Sensor Array for On-Chip Simultaneous Imaging", Japanese Journal of Applied Physics, vol.53, 04EL01 (7 pages), Feb. 2014.
K.Niitsu, K.Sakuma, N.Harigai, D.Hirabayashi, N.Takai, T.J.Yamaguchi, and H.Kobayashi, "Design Methodology and Jitter Analysis of a Delay Line for High-Accuracy On-Chip Jitter Measurements", Key Engineering Materials, vol.596, pp.176-180, Jan. 2014.
K.Niitsu, N.Harigai, D.Hirabayashi, M.Sakurai, T.J.Yamaguchi, and H.Kobayashi, "Analysis on a Cascaded Structure in Open-Loop Time Amplifier for High-Speed Operation", Key Engineering Materials, vol.596, pp.171-175, Jan. 2014.
Y.Tan, D.Oki, Y.Liu, Y.Arai, Z.Nosker, H.Kobayashi, O.Kobayashi, T.Matsuura, Z.Yang, A.Katayama, L.Quan, E.Li, K.Niitsu, and N.Takai, "Self-Calibration Techniques of Pipeline ADCs Using Cyclic Configuration", Key Engineering Materials, vol.596, pp.181-186, Jan. 2014.
S.Uemori, M.Ishii, H.Kobayashi, D.Hirabayashi, Y.Arakawa, Y.Doi, O.Kobayashi, T.Matsuura, K.Niitsu, Y.Yano, T.Gake, T.J.Yamaguchi, and N.Takai, “Multi-bit Sigma-Delta TDC Architecture with Improved Linearity”, Journal of Electronic Testing : Theory and Applications, vol.29, no.6, pp.879-892, Dec. 2013.
K.Niitsu, N.Harigai, and H.Kobayashi, "Design Methodology for Determining the Number of Stages in a Cascaded Time Amplifier to Minimize Area Consumption", IEICE Electronics Express, vol.10, no.11, pp.20130289, Jun. 2013.
K.Niitsu, N.Harigai, T.J.Yamaguchi, and H.Kobayashi, "A Feed-Forward Time Amplifier Using Phase Detector and Variable Delay Line", IEICE Transactions on Electronics, vol.E96-C, no.6, pp.920-922, Jun. 2013.
K.Kato, F.Abe, K.Wakabayashi, C.Gao, T.Yamada, H.Kobayashi, O.Kobayashi, and K.Niitsu, "Two-Tone Signal Generation for ADC Testing", IEICE Transactions on Electronics, vol.E96-C, no.6, pp.850-858, Jun. 2013.
Z.Nosker, Y.Kobori, H.Kobayashi, K.Niitsu, N.Takai, T.Oomori, T.Odaguchi, I.Nakanishi, K.Nemoto, J.Matsuda, "A Small, Low Power Boost Regulator Optimized for Energy Harvesting Applications", Analog Integrated Circuits and Signal Processing, vol.75, no.2, pp.207-216, Apr. 2013.
K.Niitsu, M.Sakurai, N.Harigai, D.Hirabayashi, D.Oki, T.J.Yamaguchi, and H.Kobayashi, "An Analytical Study on Jitter Accumulation in Interleaved Phase Frequency Detectors for High-Accuracy On-Chip Jitter Measurements", Key Engineering Materials, vol.534, pp.197-205, Jan. 2013.
Z.Nosker, Y.Kobori, H.Kobayashi, K.Niitsu, N.Takai, T.Oomori, T.Odaguchi, I.Nakanishi, K.Nemoto, J.Matsuda, "A High Efficiency, Extended Load Range Boost Regulator Optimized for Energy Harvesting Applications", Key Engineering Materials, vol.534, pp.206-219, Jan. 2013.
K.Niitsu, M.Sakurai, N.Harigai, T.J.Yamaguchi, and H.Kobayashi, "CMOS Circuits to Measure Timing Jitter Using a Self-Referenced Clock and a Cascaded Time Difference Amplifier with Duty-Cycle Compensation", IEEE Journal of Solid-State Circuits (JSSC), vol.47, no.11, pp.2701-2710, Nov. 2012.
K.Wakabayashi, K.Kato, T.Yamada, O.Kobayashi, H.Kobayashi, F.Abe, and K.Niitsu, "Low-Distortion Sinewave Generation Method Using Arbitrary Waveform Generator", Journal of Electronic Testing: Theory and Applications, vol.28, no.5, pp.641-651, Oct. 2012.
K.Niitsu, S.Kawai, N.Miura, H.Ishikuro, and T.Kuroda, "A 65fJ/b Inter-Chip Inductive-Coupling Data Transceivers Using Charge-Recycling Technique for Low-Power Inter-Chip Communication in 3-D System Integration", IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol.20, no.7, pp.1285-1294, Jul. 2012.
J.Ye, Z.Nosker, K.Wakabayashi, T.Yagi, O.Yamamoto, N.Takai, K.Niitsu, K.Kato, T.Ootsuki, I.Akiyama, and H.Kobayashi, "Architecture of High-Efficiency Digitally-Controlled Class-E Power Amplifier", Key Engineering Materials, vol.487, pp.285-295, Dec. 2011.
K.Niitsu, S.Kang, V.V.Kulkarni, H.Ishikuro, and T.Kuroda, "A 14 GHz AC-Coupled Clock Distribution Scheme with Phase Averaging Technique Using Sigle LC-VCO and Distributed Phase Interpolators", IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol.19, no.11, pp.2058-2066, Nov. 2011.
K.Niitsu, Y.Sugimori, Y.Kohama, K.Osada, N.Irie, H.Ishikuro, and T.Kuroda, "Analysis and Techniques for Mitigating Interference from Power/Signal Lines and to SRAM Circuits in CMOS Inductive-Coupling Link for Low-Power 3D System Integration", IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol.19, no.10, pp.1902-1907, Oct. 2011.
T.Ogawa, H.Kobayashi, S.Uemori, Y.Tan, S.Ito, N.Takai, T.J.Yamaguchi, and K.Niitsu, "Design for Testability That Reduces Linearity Testing Time of SAR ADCs”, IEICE Transactions on Electronics, vol.E94-C, no.6, pp.1061-1064, Jun. 2011.
K.Niitsu, Y.Kohama, Y.Sugimori, K.Kasuga, K.Osada, N.Irie, H.Ishikuro, and T.Kuroda, "Modeling and Experimental Verification of Misalignment Tolerance in Inductive-Coupling Inter-Chip Link for Low-Power 3D System Integration", IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol.18, no.8, pp.1238-1243, Aug. 2010.
M.Saen, K.Osada, Y.Okuma, K.Niitsu, Y.Shimazaki, Y.Sugimori, Y.Kohama, K.Kasuga, I.Nonomura, N.Irie, T.Hattori, A.Hasegawa, and T.Kuroda, "3-D System Integration of Processor and Multi-Stacked SRAMs Using Inductive-Coupling Link", IEEE Journal of Solid-State Circuits (JSSC), vol.45, no.4, pp.856-862, Apr. 2010.
K.Niitsu, Y.Yuxiang, H.Ishikuro, and T.Kuroda, "A 33% Improvement in Efficiency of Wireless Inter-Chip Power Delivery by Thin Film Magnetic Material for Three-Dimensional System Integration", Japanese Journal of Applied Physics, vol.48, 04C073 (5 pages), Apr. 2009.
V.V.Kulkarni, M.Muqsith, K.Niitsu, H.Ishikuro and T.Kuroda, "A 750 Mb/s, 12 pJ/b, 6-to-10 GHz CMOS IR-UWB Transmitter With Embedded On-Chip Antenna", IEEE Journal of Solid-State Circuits (JSSC), vol.44, no.2, pp.394-403, Feb. 2009.
N.Miura, H.Ishikuro, K.Niitsu, T.Sakurai, and T.Kuroda, "A 0.14pJ/bit Inductive-Coupling Transceiver with Digitally-Controlled Precise Pulse Shaping", IEEE Journal of Solid-State Circuits (JSSC), vol.43, no.1, pp.285-291, Jan. 2008.
K.Niitsu, N.Miura, M.Inoue, Y.Nakagawa, M.Tago, M.Mizuno, T.Sakurai, and T.Kuroda, "Daisy Chain Transmitter for Power Reduction in Inductive-Coupling CMOS Link”, IEICE Transactions on Electronics, vol.E90-C, no.4, pp.829-835, Apr. 2007.
K.Niitsu, N.Miura, M.Inoue, Y.Nakagawa, M.Tago, M.Mizuno, H.Ishikuro, and T.Kuroda, "60% Power Reduction in Inductive-Coupling Inter-Chip Link by Current-Sensing Technique", Japanese Journal of Applied Physics, vol.46, no.4B, pp.2215-2219, Apr. 2007.
N.Miura, D.Mizoguchi, M.Inoue, K.Niitsu, Y.Nakagawa, M.Tago, M.Mizuno, T.Sakurai, and T.Kuroda, "A 1Tb/s 3W Inductive-Coupling Transceiver for 3D-Stacked Inter-Chip Clock and Data Link", IEEE Journal of Solid-State Circuits (JSSC), vol.42, no.1, pp.111-122, Jan. 2007.
K.Niitsu, Jpn. J. Appl. Phys.
K.Hayashi, S.Arata, G.Xu, S.Murakami, C.D.Bui, A.Kobayashi, and K.Niitsu, IEICE Trans. Elec. Jul. 2019.
S.Arata, K.Hayashi, X.Ge, S.Murakami, C.D.Bui, A.Kobayashi, and K.Niitsu, Jpn. J. Appl. Phys.
Y.Nishio, A.Kobayashi, and K.Niitsu, IEICE Trans. on Electronics, (2019).
K.Niitsu, T.Nakanishi, S.Murakami, M.Matsunaga, A.Kobayashi, N.M.Karim, J.Ito, N.Ozawa, T.Hase, H.Tanaka, M.Sato, H.Kondo, K.Ishikawa, H.Odaka, Y.Hasegawa, M.Hori, and K.Nakazato, IEEE Trans. on Biomedical Circuits and Systems, 13, 470-479, 2019.
M.Matsunaga, T.Nakanishi, A.Kobayashi, K.Nakazato, and K.Niitsu, Analog Integrated Circuits and Signal Processing, 98, 453,(2019).
K.Hayashi, S.Arata, S.Murakami, Y.Nishio, A.Kobayashi, and K.Niitsu, IEEE Trans. on Circuits and Systems II, 65 , 1360 (2018).
K.Niitsu, A.Kobayashi, K.Hayashi, Y.Nishio, K.Ikeda, T.Ando, Y.Ogawa, H.Kai, M.Nishizawa, and K.Nakazato, IEEE Trans. on Circuits and Systems I, 65 , 2784 (2018).
M.Matsunaga, A.Kobayashi, K.Nakazato, and K.Niitsu, Jpn. J. Appl. Phys, 57 [3S2 03EC02] (2018).
T.Nakanishi, M.Matsunaga, A.Kobayashi, K.Nakazato, and K.Niitsu, Jpn. J. Appl. Phys, 57 [3S2 03EC01], (2018).
K.Itakura, K.Kayano, K.Nakazato and K.Niitsu, Jpn. J. Appl. Phys, 57 [1S 01AG02], (2018).
S.Arata, K.Hayashi, Y.Nishio, A.Kobayashi, K.Nakazato, and K.Niitsu, Jpn. J. Appl. Phys, 57 [4S 04FM04], (2018).
A.Kobayashi, K.Ikeda, Y.Ogawa, H.Kai, M.Nishizawa, K.Nakazato, and K.Niitsu, IEEE Trans. on Biomedical Circuits and Systems, 65 , 1313 (2017).
K.Ikeda, A.Kobayashi, K.Nakazato, and K.Niitsu, Analog Integrated Circuits and Signal Processing, 92 , 403 (2017).
K.Gamo, K.Nakazato, and K.Niitsu, IEICE Trans. on Electronics, E100-C , 602 (2017).
K.Ikeda, A.Kobayashi, K.Nakazato, and K.Niitsu, IEICE Trans. on Electronics, E100-C , 597 (2017).
Y.Yamaji, K.Nakazato, and K.Niitsu, IEICE Trans. on Electronics, E100-C , 592 (2017).
K.Niitsu, K.Ikeda, K.Muto, and K.Nakazato, Jpn. J. Appl. Phys, 56 [1S 01AH06], (2017).
K.Niitsu, A.Kobayashi, K.Yoshida, and K.Nakazato, Jpn. J. Appl. Phys, 56 [1S 01AH05], (2017).
K.Niitsu, T.Ando, and K.Nakazato, Jpn. J. Appl. Phys, 56 [1S 01AH04], (2017).
A.Kobayashi, K.Ikeda, K.Nakazato, and K.Niitsu, Jpn. J. Appl. Phys, 56 [1S 01AH03], (2017).
K.Gamo, K.Nakazato, and K.Niitsu, Jpn. J. Appl. Phys, 56 [1S 01AH01], (2017).
K.Niitsu, T.Kuno, M.Takihi, and K.Nakazato, IEICE Trans. on Electronics, E99-C , 663 (2016).
K.Niitsu, K.Yoshida, and K.Nakazato, Jpn. J. Appl. Phys, 55 [3S2 03DF13],4 (2016).
S.Tanaka, K.Niitsu, and K.Nakazato, Jpn. J. Appl. Phys, 55 [3S2 03DF10], 7 (2016).
Y.Yamaji, K.Niitsu, and K.Nakazato, Jpn. J. Appl. Phys, 55 [3S2 03DF07], 5 (2016).
K.Niitsu, S.Ota, K.Gamo, H.Kondo, M.Hori, and K.Nakazato, IEEE Trans. on Biomedical Circuits and Systems, 9 , 607 (2015).
K.Niitsu, Y.Osawa, D.Hirabayashi, O.Kobayashi, T.J.Yamaguchi, and H.Kobayashi, IEEE Trans on Very Large Scale Integration Systems, 23 , 1145 (2015).
H.Ishihara, K.Niitsu, and K.Nakazato, Jpn. J. Appl. Phys, 54 [4S 04DL05] (6 pages) (2015).
Y.Osawa, D.Hirabayashi, N.Harigai, H.Kobayashi, O.Kobayashi , M.Tsuji, S.Umeda, R.Shiota, N.Dobashi, M.Watanabe, T.Matsuura, K.Niitsu, I.Shimizu, N.Takai, and T.J.Yamaguchi, Key Engineering Materials, 643,149 (2015).
G.Jin, H.Chen, C.Gao, Y.Zhang, M.Li , H.Kobayashi, S.Wu, N.Takai, K.Niitsu, and K.Hadidi, Key Engineering Materials, Advanced Micro-Device Engineering V, 123 (2015).
K.Niitsu, N.Harigai, T.J.Yamaguchi, and H.Kobayashi, IEICE Electronics Express, 11 , 20140203 (2014).
T.Kuno, K.Niitsu, and K.Nakazato, Jpn. J. Appl. Phys, 53 [04EL01], 7 (2014).
K.Niitsu, K.Sakuma, N.Harigai, D.Hirabayashi, N.Takai, T.J.Yamaguchi, and H.Kobayashi, Key Engineering Materials,596,176 (2014).
K. Niitsu, N.Harigai, D.Hirabayashi, M.Sakurai, T.J.Yamaguchi, and H.Kobayashi, Key Engineering Materials, 596, 171 (2014).
Y.Tan, D.Oki, Y.Liu, Y.Arai, Z.Nosker, H.Kobayashi, O.Kobayashi, T.Matsuura, Z.Yang, A.Katayama, L.Quan, E.Li, K.Niitsu, and N.Takai, Key Engineering Materials, 596, 181 (2014).
S.Uemori, M.Ishii, H.Kobayashi, D.Hirabayashi, Y.Arakawa, Y.Doi, O.Kobayashi, T.Matsuura, K.Niitsu, Y.Yano, T.Gake, T.J.Yamaguchi, and N.Takai, Journal of Electronic Testing : Theory and Applications, 29 , 879 (2013).
K.Niitsu, N.Harigai, and H.Kobayashi, IEICE Electronics Express, 10, , 20130289 (2013).
K.Niitsu, N.Harigai, T.J.Yamaguchi, and H.Kobayashi, IEICE Trans. on Electronics, E96-C , 920(2013).
K.Kato, F.Abe, K.Wakabayashi, C.Gao, T.Yamada, H.Kobayashi, O.Kobayashi, and K.Niitsu, IEICE Trans. on Electronics, E96-C , 850 (2013).
Z.Nosker, Y.Kobori, H.Kobayashi, K.Niitsu, N.Takai, T.Oomori, T.Odaguchi, I.Nakanishi, K.Nemoto, J.Matsuda, Analog Integrated Circuits and Signal Processing, 75 , 207 (2013).
K.Niitsu, M.Sakurai, N.Harigai, D.Hirabayashi, D.Oki, T.J.Yamaguchi, and H.Kobayashi, Key Engineering Materials, 534, 197 (2013).
Z.Nosker, Y.Kobori, H.Kobayashi, K.Niitsu, N.Takai, T.Oomori, T.Odaguchi, I.Nakanishi, K.Nemoto, J.Matsuda, Key Engineering Materials, 534, 206 (2013).
K.Niitsu, M.Sakurai, N.Harigai, T.J.Yamaguchi, and H.Kobayashi, IEEE Journal of Solid-State Circuits, 47 , 2701 (2012).
K.Wakabayashi, K.Kato, T.Yamada, O.Kobayashi, H.Kobayashi, F.Abe, and K.Niitsu, Journal of Electronic Testing: Theory and Applications, 28 , 641 (2012).
K.Niitsu, S.Kawai, N.Miura, H.Ishikuro, and T.Kuroda, IEEE Trans. on Very Large Scale Integration Systems, 20 , 1285 (2012).
J.Ye, Z.Nosker, K.Wakabayashi, T.Yagi, O.Yamamoto, N.Takai, K.Niitsu, K.Kato, T.Ootsuki, I.Akiyama, and H.Kobayashi, Key Engineering Materials, 487, 285 (2011).
K.Niitsu, S.Kang, V.V.Kulkarni, H.Ishikuro, and T.Kuroda, IEEE Trans. on Very Large Scale Integration Systems, 19 , 2058 (2011).
K.Niitsu, Y.Sugimori, Y.Kohama, K.Osada, N.Irie, H.Ishikuro, and T.Kuroda, IEEE Trans. on Very Large Scale Integration Systems, 19 , 1902 (2011).
T.Ogawa, H.Kobayashi, S.Uemori, Y.Tan, S.Ito, N.Takai, T.J.Yamaguchi, and K.Niitsu, IEICE Trans. on Electronics, E94-C , 1061 (2011).
K.Niitsu, Y.Kohama, Y.Sugimori, K.Kasuga, K.Osada, N.Irie, H.Ishikuro, and T.Kuroda, IEEE Trans. on Very Large Scale Integration Systems, 18 , 1238 (2010).
M.Saen, K.Osada, Y.Okuma, K.Niitsu, Y.Shimazaki, Y.Sugimori, Y.Kohama, K.Kasuga, I.Nonomura, N.Irie, T.Hattori, A.Hasegawa, and T.Kuroda, IEEE Journal of Solid-State Circuits, 45 , 856 (2010).
K.Niitsu, Y.Yuxiang, H.Ishikuro, and T.Kuroda, Jpn. J. Appl. Phys, 48 [04C073], 5 (2009).
V.V.Kulkarni, M.Muqsith, K.Niitsu, H.Ishikuro and T.Kuroda, IEEE Journal of Solid-State Circuits, 44 , 394 (2009).
N.Miura, H.Ishikuro, K.Niitsu, T.Sakurai, and T.Kuroda, IEEE Journal of Solid-State Circuits, 43 , 285 (2008).
K.Niitsu, N.Miura, M.Inoue, Y.Nakagawa, M.Tago, M.Mizuno, T.Sakurai, and T.Kuroda, IEICE Trans. on Electronics, E90-C , 829 (2007).
K.Niitsu, N.Miura, M.Inoue, Y.Nakagawa, M.Tago, M.Mizuno, H.Ishikuro, and T.Kuroda, Jpn. J. Appl. Phys, 46 [4B], 2215 (2007).
N.Miura, D.Mizoguchi, M.Inoue, K.Niitsu, Y.Nakagawa, M.Tago, M.Mizuno, T.Sakurai, and T.Kuroda, IEEE Journal of Solid-State Circuits, 42 , 111 (2007).
Niitsu K., ”An Energy-Autonomous Biosensing Platform Using Supply-Sensing CMOS Integrated Sensor and Bio Fuel Cell for Next-Generation Healthcare IoT" Japanese Journal of Applied Physics.
Hayashi K., Arata S., Xu G., Murakami S., Bui C. D., Kobayashi A., and Niitsu K., ”A 385 ×385 μm20.165V 0.27nW Fully-Integrated Supply-Modulated OOK Transmitterin 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens," IEICE Trans. Elec. Jul. 2019.
Hayashi K., Arata S., Xu G., Murakami S., Bui C. D., Kobayashi A., and Niitsu K.,”An FSK Inductive-Coupling Transceiver Using 60mV 0.64fJ/bit 0.0016 mm2Load-Modulated transmitter and LC-Oscillator-Based Receiver in 65 nm CMOS for Energy-Budget-Unbalanced Application," IEICE Trans. Elec. Jul. 2019.
Arata S., Hayashi K., Ge X., Murakami S., Bui C. D., Kobayashi A., and Niitsu K., ”Yield and open-circuit-voltage enhancement of 0.36 mm2 Solid-State CMOS-compatible glucose fuel cell by using repeated separator coating,” Japanese Journal of Applied Physics.
Nishio Y., Kobayashi A., and Niitsu K, ”Design and Calibration of a Small-Footprint, Low-Frequency, and Low-Power Gate Leakage Timer Using Differential Leakage Technique,” IEICE Transactions on Electronics, E102.C(4):269-275, Apr. 2019.
Niitsu K., Nakanishi T., Murakami S., Matsunaga M., Kobayashi A., Karim N. M., Ito J., Ozawa N., Hase T., Tanaka H., Sato M., Kondo H., Ishikawa K., Odaka H., Hasegawa Y., Hori M., and Nakazato K., "A 65-nm CMOS Fully Integrated Analysis Platform Using an On-Chip Vector Network Analyzer and a Transmission-Line-Based Detection Window for Analyzing Circulating Tumor Cell and Exosome," IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), vol. 13, pp. 470-479, 2019.
Matsunaga M., Nakanishi T., Kobayashi A., Nakazato K., and Niitsu K., "Design and analysis of a three-dimensional millimeter-wave frequency-shift based CMOS biosensor using vertically stacked spiral inductors in LC oscillators," Analog Integrated Circuits and Signal Processing (ALOG),vol. 98, no. 3, pp. 453-464, Mar 2019.
Hayashi K., Arata S., Murakami S., Nishio Y., Kobayashi A., and Niitsu K, "A 6.1nA Fully-Integrated CMOS Supply-Modulated OOK Transmitter in 55nm DDC CMOS for Glass-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens," IEEE Transactions on Circuits and Systems II (TCAS-II), vol. 65, no. 10, pp. 1360-1364, Oct 2018.
Niitsu K., Kobayashi A., Hayashi K., Nishio Y., Ikeda K., Ando T., Ogawa Y., Kai H., Nishizawa M., and Nakazato K., "A Self-Powered Supply-Sensing Biosensor Platform Using Bio Fuel Cell and Low-Voltage, Low-Cost CMOS Supply-Controlled Ring Oscillator with Inductive-Coupling Transmitter for Healthcare IoT," IEEE Transactions on Circuits and Systems I (TCAS-I), vol. 65, no. 9, pp. 2784 - 2796, Sep.2018.
Arata S., Hayashi K., Nishio Y., Kobayashi A., Nakazato K., and Niitsu K., "Wafer-scale development and experimental verification of 0.36-mm^2 228-mV open-circuit-voltage solid-state CMOS-compatible glucose fuel cell for healthcare IoT application," Japanese Journal of Applied Physics, vol. 57, no. 4S, pp. 04FM04, Mar. 2018.
Matsunaga M., Kobayashi A., Nakazato K., and Niitsu K., "Design Trade-Off between Spatial Resolution and Power Consumption in CMOS Biosensor Circuit Based on Millimeter-Wave LC-Oscillator Array," Japanese Journal of Applied Physics, vol. 57, no. 3S2, pp. 03EC02, Jan. 2018.
Nakanishi T., Matsunaga M., Kobayashi A., Nakazato K., and Niitsu K., "A 40-GHz fully integrated circulating tumor cell analysis vector network analyzer in 65-nm CMOS technology with coplanar-line-based detection area," Japanese Journal of Applied Physics, vol. 57, no. 3S2, pp. 03EC01, Jan. 2018.
Itakura K., Kayano K., Nakazato K., and Niitsu K., "Theoretical Analysis and Simulation Study of Low-Power CMOS Electrochemical Impedance Spectroscopy Biosensor in 55nm DDC Technology for Cell-State Monitoring," Japanese Journal of Applied Physics, vol. 57, no. 1S, pp. 01AG02, Jan. 2018.
Kobayashi A., Ikeda K, Ogawa Y., Kai H, Nishizawa M., Nakazato K., and Niitsu K., "Design and Experimental Verification of 0.19 V 53 μW 65 nm CMOS Integrated Supply-Sensing Sensor with a Supply-Insensitive Temperature Sensor and Inductive-Coupling Transmitter for a Self-Powered Bio-Sensing Using a Biofuel Cell," IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), vol. 11, no. 6, pp. 1313-1323, Dec. 2017.
Ikeda K., Kobayashi A., Nakazato K., and Niitsu K., "Design and Electrochemical Measurement of a Current-Mode Analog-to-Time Converter with Short-Pulse Output Capability Using Local Intra-Cell Activation for High-Speed Time-Domain Biosensor Array," Analog Integrated Circuits and Signal Processing (ALOG), vol. 92, no. 3, pp. 403-413, Jun. 2017.
Gamo K., Nakazato K., and Niitsu K.., "A Current-Integration-Based CMOS Amperometric Sensor with 1024 × 1024 Bacteria-Sized Microelectrode Array for High-Sensitivity Bacteria Counting," IEICE Transactions on Electronics, Vol.E100-C, No.6, pp. 602-606, Jun. 2017.
Ikeda K., Kobayashi A., Nakazato K., and Niitsu K., "Design and Analysis of Scalability in Current-Mode Analog-to-Time Converter for an Energy-Efficient and High-Resolution CMOS Biosensor Array," IEICE Transactions on Electronics, vol. E100-C, No.6, pp. 597-601, Jun. 2017.
Yamaji Y., Nakazato K., and Niitsu K., "Sub-1-V CMOS-Based Electrophoresis Using Electroless Gold Plating for Small-Form-Factor Biomolecule Manipulation," IEICE Transactions on Electronics, vol. E100-C, No.6, pp. 592-596, Jun. 2017.
Niitsu K., Ikeda K., Muto K., and Nakazato K., "Design, Experimental Verification, and Analysis of a 1.8-V-Input-range Voltage-to-Current Converter Using Source Degeneration for Low-Noise Multimodal CMOS Biosensor Array," Japanese Journal of Applied Physics, vol. 56, no. 1S, pp. 01AH06, Jan. 2017.
Niitsu K., Kobayashi A., Yoshida K., and Nakazato K., "Design and experimental verification of CMOS Magnetic-Based Microbeads Detection Using an Asynchronous Intra-chip Inductive-Coupling Transceiver," Japanese Journal of Applied Physics, vol. 56, no. 1S, pp. 01AH05, Jan. 2017.
Niitsu K., Ando T., and Nakazato K., "Enhancement in open-circuit voltage of implantable CMOS-compatible glucose fuel cell by improving the anodic catalyst," Japanese Journal of Applied Physics, vol. 56, no. 1S, pp. 01AH04, Jan. 2017.
Kobayashi A., Ikeda K., Nakazato K., and Niitsu K., "Energy-efficient and low-voltage design methodology for a supply-sensing CMOS biosensor using biofuel cells for energy-autonomous healthcare applications," Japanese Journal of Applied Physics, vol. 56, no. 1S, pp. 01AH03, Jan. 2017.
Gamo K., Nakazato K., and Niitsu K., "Design, theoretical analysis, and experimental verification of a CMOS current integrator with 1.2 × 2.05 µm2 microelectrode array for high-sensitivity bacterial counting," Japanese Journal of Applied Physics, vol. 56, no. 1S, pp. 01AH01, Jan. 2017.
Niitsu K., Kuno T., Takihi M., and Nakazato K., "Well-Shaped Microelectrode Array Structure for High-Density CMOS Amperometric Electrochemical Sensor Array," IEICE Transactions on Electronics, vol. E99-C, no. 6, pp. 663-666, Jun. 2016.
Niitsu K., Yoshida K., and Nakazato K., "Design and experimental demonstration of low-power CMOS magnetic cell manipulation platform using charge recycling technique ," Japanese Journal of Applied Physics, vol. 55, no. 3S2, 03DF13 (4 pages), Feb. 2016.
Tanaka S., Niitsu K., and Nakazato K., "A Low-Power Inverter-Based CMOS Level-Crossing A/D Converter for Low-frequency Biosignal Sensing ," Japanese Journal of Applied Physics, vol. 55, no. 3S2, 03DF10 (7 pages), Feb. 2016.
Yamaji Y., Niitsu K., and Nakazato K., "Design and Experimental Verification of Low-Voltage Two-Dimensional CMOS Electrophoresis Platform with 32×32 Sample/Hold Cell Array ," Japanese Journal of Applied Physics, vol. 55, no. 3S2, 03DF07 (5 pages), Feb. 2016.
Niitsu K., Ota S., Gamo K., Kondo H., Hori M., and Nakazato K., "Development of Microelectrode Arrays Using Electroless Plating for CMOS-Based Direct Counting of Bacterial and HeLa Cells," IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), vol. 9, no. 5, pp. 607-619, Nov. 2015.
Niitsu K., Osawa Y., Hirabayashi D., Kobayashi O., Yamaguchi T. J., and Kobayashi H., "A CMOS PWM Transceiver Using Self-Referenced Edge Detection," IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol. 23, no. 6, pp. 1145-1149. Jun. 2015.
Ishihara H., Niitsu K., and Nakazato K., "Analysis and Experimental Verification of DNA Single Base Polymerization Detection Using CMOS FET-Based Redox Potential Sensor Array," Japanese Journal of Applied Physics, vol. 54, no. 4S, 04DL05 (6 pages), Mar. 2015.
Osawa Y., Hirabayashi D., Harigai N., Kobayashi H. Kobayashi O., Tsuji M., Umeda S., Shiota R., Dobashi N., Watanabe M., Matsuura T., Niitsu K., Shimizu I., Takai N., and Yamaguchi T. J., "Phase Noise Measurement and Testing with Delta-Sigma TDC," Key Engineering Materials, vol. 643, pp. 149-156, May 2015.
Jin G., Chen H., Gao C., Zhang Y., Li M. , Kobayashi H., Wu S., Takai N., Niitsu K., and Hadidi K., "Digital Auto-Tuning for Center Frequency and Q-Factor of Gm-C Band-Pass Filter," Key Engineering Materials, vol. Advanced Micro-Device Engineering V, pp. 123-130, May 2015.
Niitsu K., Harigai N., Yamaguchi T. J., and Kobayashi H., "A Low-Offset Cascaded Time Amplifier with Reconfigurable Inter-Stage Connection," IEICE Electronics Express, vol. 11, no. 10, pp. 20140203, May 2014.
Tsuyoshi Kuno, Niitsu K., and Nakazato K., "Amperometric Electrochemical Sensor Array for On-Chip Simultaneous Imaging," Japanese Journal of Applied Physics, vol. 53, 04EL01 (7 pages), Feb. 2014.
Niitsu K., Sakuma K., Harigai N., Hirabayashi D., Takai N., Yamaguchi T. J., and Kobayashi H., "Design Methodology and Jitter Analysis of a Delay Line for High-Accuracy On-Chip Jitter Measurements," Key Engineering Materials, vol. 596, pp. 176-180, Jan. 2014.
Niitsu K., Harigai N., Hirabayashi D., Sakurai M., Yamaguchi T. J., and Kobayashi H., "Analysis on a Cascaded Structure in Open-Loop Time Amplifier for High-Speed Operation," Key Engineering Materials, vol. 596, pp. 171-175, Jan. 2014.
Tan Y., Oki D., Liu Y., Arai Y., Nosker Z., Kobayashi H., Kobayashi O., Matsuura T., Yang Z., Katayama A., Quan L., Li E., Niitsu K., and Takai N., "Self-Calibration Techniques of Pipeline ADCs Using Cyclic Configuration," Key Engineering Materials, vol. 596, pp. 181-186, Jan. 2014.
Uemori S., Ishii M., Kobayashi H., Hirabayashi D., Arakawa Y., Doi Y., Kobayashi O., Matsuura T., Niitsu K., Yano Y., Gake T., Yamaguchi T. J., and Takai N., “Multi-bit Sigma-Delta TDC Architecture with Improved Linearity,” Journal of Electronic Testing : Theory and Applications, vol. 29, no. 6, pp. 879-892, Dec. 2013.
Niitsu K., Harigai N., and Kobayashi H., "Design Methodology for Determining the Number of Stages in a Cascaded Time Amplifier to Minimize Area Consumption," IEICE Electronics Express, vol. 10, no. 11, pp. 20130289, Jun. 2013.
Niitsu K., Harigai N., Yamaguchi T. J., and Kobayashi H., "A Feed-Forward Time Amplifier Using Phase Detector and Variable Delay Line," IEICE Transactions on Electronics, vol.E96-C, no.6, pp. 920-922, Jun. 2013.
Kato K., Abe F., Wakabayashi K., Gao C., Yamada T., Kobayashi H., Kobayashi O., and Niitsu K., "Two-Tone Signal Generation for ADC Testing," IEICE Transactions on Electronics, vol.E96-C, no.6, pp. 850-858, Jun. 2013.
Nosker Z., Kobori Y., Kobayashi H., Niitsu K., Takai N., Oomori T., Odaguchi T., Nakanishi I., Nemoto K., Matsuda J., "A Small, Low Power Boost Regulator Optimized for Energy Harvesting Applications," Analog Integrated Circuits and Signal Processing, vol. 75, no. 2, pp. 207-216, Apr. 2013.
Niitsu K., Sakurai M., Harigai N., Hirabayashi D., Oki D., Yamaguchi T. J., and Kobayashi H., "An Analytical Study on Jitter Accumulation in Interleaved Phase Frequency Detectors for High-Accuracy On-Chip Jitter Measurements," Key Engineering Materials, vol. 534, pp. 197-205, Jan. 2013.
Nosker Z., Kobori Y., Kobayashi H., Niitsu K., Takai N., Oomori T., Odaguchi T., Nakanishi I., Nemoto K., Matsuda J., "A High Efficiency, Extended Load Range Boost Regulator Optimized for Energy Harvesting Applications," Key Engineering Materials, vol. 534, pp. 206-219, Jan. 2013.
Niitsu K., Sakurai M., Harigai N., Yamaguchi T. J., and Kobayashi H., "CMOS Circuits to Measure Timing Jitter Using a Self-Referenced Clock and a Cascaded Time Difference Amplifier with Duty-Cycle Compensation," IEEE Journal of Solid-State Circuits (JSSC), vol. 47, no. 11, pp. 2701-2710, Nov. 2012.
Wakabayashi K., Kato K., Yamada T., Kobayashi O., Kobayashi H., Abe F., and Niitsu K., "Low-Distortion Sinewave Generation Method Using Arbitrary Waveform Generator," Journal of Electronic Testing: Theory and Applications, vol.28, no.5, pp. 641-651, Oct. 2012.
Niitsu K., Kawai S., Miura N., Ishikuro H., and Kuroda T., "A 65fJ/b Inter-Chip Inductive-Coupling Data Transceivers Using Charge-Recycling Technique for Low-Power Inter-Chip Communication in 3-D System Integration," IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol. 20, no. 7, pp. 1285-1294, Jul. 2012.
Ye J., Nosker Z., Wakabayashi K., Yagi T., Yamamoto O., Takai N., Niitsu K., Kato K., Ootsuki T., Akiyama I., and Kobayashi H., "Architecture of High-Efficiency Digitally-Controlled Class-E Power Amplifier," Key Engineering Materials, vol. 487, pp. 285-295, Dec. 2011.
Niitsu K., Kang S., Kulkarni V. V., Ishikuro H., and Kuroda T., "A 14 GHz AC-Coupled Clock Distribution Scheme with Phase Averaging Technique Using Sigle LC-VCO and Distributed Phase Interpolators," IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol. 19, no. 11, pp. 2058-2066, Nov. 2011.
Niitsu K., Sugimori Y., Kohama Y., Osada K., Irie N., Ishikuro H., and Kuroda T., "Analysis and Techniques for Mitigating Interference from Power/Signal Lines and to SRAM Circuits in CMOS Inductive-Coupling Link for Low-Power 3D System Integration," IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol. 19, no. 10, pp. 1902-1907, Oct. 2011.
Ogawa T., Kobayashi H., Uemori S., Tan Y., Ito S., Takai N., Yamaguchi T. J., and Niitsu K., "Design for Testability That Reduces Linearity Testing Time of SAR ADCs,” IEICE Transactions on Electronics, vol. E94-C, no. 6, pp. 1061-1064, Jun. 2011.
Niitsu K., Kohama Y., Sugimori Y., Kasuga K., Osada K., Irie N., Ishikuro H., and Kuroda T., "Modeling and Experimental Verification of Misalignment Tolerance in Inductive-Coupling Inter-Chip Link for Low-Power 3D System Integration," IEEE Transactions on Very Large Scale Integration (VLSI) Systems (TVLSI), vol. 18, no. 8, pp. 1238-1243, Aug. 2010.
Saen M., Osada K., Okuma Y., Niitsu K., Shimazak Y., Sugimori Y., Kohama Y., Kasuga K., Nonomura I., Irie N., Hattori T., Hasegawa A., and Kuroda T., "3-D System Integration of Processor and Multi-Stacked SRAMs Using Inductive-Coupling Link," IEEE Journal of Solid-State Circuits (JSSC), vol. 45, no. 4, pp. 856-862, Apr. 2010.
Niitsu K., Yuxiang Y., Ishikuro H., and Kuroda T., "A 33% Improvement in Efficiency of Wireless Inter-Chip Power Delivery by Thin Film Magnetic Material for Three-Dimensional System Integration," Japanese Journal of Applied Physics, vol. 48, 04C073 (5 pages), Apr. 2009.
Kulkarni V. V., Muqsith M., Niitsu K., Ishikuro H. and Kuroda T., "A 750 Mb/s, 12 pJ/b, 6-to-10 GHz CMOS IR-UWB Transmitter With Embedded On-Chip Antenna," IEEE Journal of Solid-State Circuits (JSSC), vol. 44, no. 2, pp. 394-403, Feb. 2009.
Miura N., Ishikuro H., Niitsu K., Sakurai T., and Kuroda T., "A 0.14pJ/bit Inductive-Coupling Transceiver with Digitally-Controlled Precise Pulse Shaping," IEEE Journal of Solid-State Circuits (JSSC), vol. 43, no. 1, pp. 285-291, Jan. 2008.
Niitsu K., Miura N., Inoue M., Nakagawa Y., Tago M., Mizuno M., Sakurai T., and Kuroda T., "Daisy Chain Transmitter for Power Reduction in Inductive-Coupling CMOS Link,” IEICE Transactions on Electronics, vol. E90-C, no. 4, pp. 829-835, Apr. 2007.
Niitsu K., Miura N., Inoue M., Nakagawa Y., Tago M., Mizuno M., Ishikuro H., and Kuroda T., "60% Power Reduction in Inductive-Coupling Inter-Chip Link by Current-Sensing Technique," Japanese Journal of Applied Physics, vol. 46, no. 4B, pp. 2215-2219, Apr. 2007.
Miura N., Mizoguchi D., Inoue M., Niitsu K., Nakagawa Y., Tago M., Mizuno M, Sakurai T., and Kuroda T., "A 1Tb/s 3W Inductive-Coupling Transceiver for 3D-Stacked Inter-Chip Clock and Data Link," IEEE Journal of Solid-State Circuits (JSSC), vol. 42, no. 1, pp. 111-122, Jan. 2007.
Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya Murakami, Cong Dang Bui, Atsuki Kobayashi, and Kiichi Niitsu,"0.27nW Fully-Integrated Supply-Modulated OOK Transmitter in 65nm CMOS for Self-Powered and Low-Cost Continuous Glucose Monitoring Contact Lens" in Proc. 11th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 12th International Conference on Plasma-Nano Technology & Science (ISPlasma2019 / IC-PLANTS2019), Mar. 2019, p.8323.
Md. Zahidul Islam, Shigeki Arata, Kenya Hayashi, Atsuki Kobayashi and Kiichi Niitsu,"Various Type of CNT Dispersion Applied to Bio-Fuel Cell for High Yield of Production" in Proc. 11th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 12th International Conference on Plasma-Nano Technology & Science (ISPlasma2019 / IC-PLANTS2019), Mar. 2019, p.8323.
Kiichi Niitsu, "A 65-nm CMOS Fully-Integrated Circulating Tumor Cell and Exosome Analyzer Using an On-Chip Vector Network Analyzer and a Transmission-Line-Based Detection Window," in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019.
Kiichi Niitsu, Yuuki Yamaji, Atsuki Kobayashi, Kazuo Nakazato"A Low-Voltage CMOS Electrophoresis IC Using Electroless Gold Plating for Small-Form-Factor Biomolecule Manipulation," in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019.
Atsuki Kobayashi, Yuya Nishio, Kenya Hayashi, Shigeki Arata, Kiichi Niitsu "Design of Gate-Leakage-Based Timer Using an Amplifier-Less Replica-Bias Switching Technique in 55-nm DDC CMOS," in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019.
Kiichi Niitsu, Taichi Sakabe, Mariko Miyachi, Yoshinori Yamanoi, Hiroshi Nishihara, Tatsuya Tomo, Kazuo Nakazato, "2D Optical Imaging Using Photosystem I Photosensor Platform with 32×32 CMOS Biosensor Array,"in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019.
Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya Murakami, Cong Dang Bui, Takuyoshi Doike, Maya Matsunaga, Atsuki Kobayashi, Kiichi Niitsu,"Design of 385 x 385 µm2 0.165V 270pW Fully-Integrated Supply-Modulated OOK Transmitter in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens,"in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019.
Maya Matsunaga, Taiki Nakanishi, Atsuki Kobayashi, Kiichi Niitsu, "A Three-Dimensional Millimeter-Wave Frequency-Shift Based CMOS Biosensor using Vertically Stacked Spiral Inductors in LC Oscillators," in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019.
Shigeki Arata, Kenya Hayashi, Xu Ge, Shunya Murakami, Cong Dang Bui, Atsuki Kobayashi, and Kiichi Niitsu, "Reactive Ion Etching in Development of 0.6mm by 0.6mm CMOS-Compatible Solid-State Glucose Fuel Cell for Small-Form-Factor Biomedical IoT Applications," in Proc. International Symposium on Dry Process (DPS 2018), Nov. 2018, p. 1.
Shunya Murakami, Kenya Hayashi, Shigeki Arata, Ge Xu, Cong Dang Bui, Atsuki Kobayashi and Kiichi NiitsuAffiliation "A Stochastic Oscillator Using Multiple Ring Oscillators and OR-Gate for Low Voltage Operation in 65 nm CMOS,"in Proc. IEEE Prime Asia 2018.
Keisuke Kayano, Maya Matsunaga, Keisuke Itakura, Atsuki Kobayashi and Kiichi Niitsu, "Design of an Energy-Autonomous Supply-Sensing Biosensor Platform Using Biofuel Cells and Human-Body-Communication Transmitter," in Proc. IEEE Prime Asia 2018.
Yuya Nishio, Atsuki Kobayashi and Kiichi Niitsu, "A Constant-Power Inductive-Coupling Transmitter Using Auxiliary Driving Technique in 65nm SOTB CMOS for Low-Power Supply-Sensing Biosensing Platform toward Healthcare IoTs," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2018), Oct. 2018, pp. 1-4.
Ge Xu, Kenya Hayashi, Shigeki Arata, Shunya Murakami, Cong Dang Bui, Atsuki Kobayashi and Kiichi Niitsu, "A BER-Modulated 3-Coil Inductive-Coupling Transceiver Using Dynamic Intermediate Interference Control Technique," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2018), Oct. 2018, pp. 1-4.
Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya Murakami, Dang Cong Bui, Takuyoshi Doike, Maya Matsunaga, Atsuki Kobayashi, and Kiichi Niitsu, "Live Demonstration: 385 X 385 µm2 0.165V 270pW Fully-Integrated Supply-Modulated OOK TX in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2018), Oct. 2018, p. 1.
Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya Murakami, Dang Cong Bui, Takuyoshi Doike, Maya Matsunaga, Atsuki Kobayashi, and Kiichi Niitsu, "A 385um × 385um 0.165 V 0.27 nW Fully-Integrated Supply-Modulated OOK CMOS TX in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2018), Oct. 2018, pp. 1-4.
Shigeki Arata, Kenya Hayashi, Xu Ge, Shunya Murakami, Dang Cong Bui, Atsuki Kobayashi, and Kiichi Niitsu, "10% Yield and 370-mV OCV of 0.36 mm2 Solid-State CMOS-Compatible Glucose Fuel Cell by Using Repeated Separator Coating," in Proc. International Conference on Solid State Devices and Materials (SSDM 2018), Sep. 2018.
Takuyoshi Doike, Kenya Hayashi, Shigeki Arata, Karim Nissar Mohammad, Atsuki Kobayashi, and Kiichi Niitsu, "A Blood Glucose Level Prediction System Using Machine Learning Based on Recurrent Neural Network for Hypoglycemia Prevention," in Proc. IEEE International NEWCAS Conference 2018 (NEWCAS 2018), Jun. 2018.
Kiichi Niitsu, Taichi Sakabe, Mariko Miyachi, Yoshinori Yamanoi, Hiroshi Nishihara, Tatsuya Tomo, Kazuo Nakazato, "Demonstration of 2D Optical Imaging Using Photosystem I Photosensor Platform with 32×32 CMOS Biosensor Array," in Proc. IEEE International NEWCAS Conference 2018 (NEWCAS 2018), Jun. 2018.
Atsuki Kobayashi, Yuya Nishio, Kenya Hayashi, Kazuo Nakazato, and Kiichi Niitsu, "A 350-mV, Under-200-ppm Allan Deviation Floor Gate-Leakage-Based Timer Using an Amplifier-Less Replica-Bias Switching Technique in 55-nm DDC CMOS," in Proc. IEEE Custom Integrated Circuit Conference (CICC 2018), Apr. 2018, pp. 1-4.
Kiichi Niitsu, "Energy-autonomous Biomedical IoTs using Plasma-enhanced Bio-fuel Cell and Low-energy CMOS Biosensor," in Proc. 10th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 11th International Conference on Plasma-Nano Technology & Science (ISPlasma2018 / IC-PLANTS2018), Mar. 2018, p. 06pA14I.
Takuyoshi Doike and Kiichi Niitsu, "An AI-Enhanced Blood Glucose Sensing System Using Machine Learning Based on Recurrent Neural Network for Hypoglycemia Prevention," in Proc. 10th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 11th International Conference on Plasma-Nano Technology & Science (ISPlasma2018 / ICPLANTS2018),Mar.2018,p.07P65.
Yuya Nishio, Atsuki Kobayashi, and Kiichi Niitsu, "A 28um^2, 0.11Hz, 4.5pW Gate Leakage Timer Using Differential Leakage Technique in 55nm DDC CMOS for Small-Footprint, Low-Frequency and Low-Power Timing Generation," in Proc. IEEE International Conference on Electronics, Circuits and Systems (ICECS 2017), Dec. 2017, pp. 1-4.
Kei Ikeda, Atsuki Kobayashi, and Kiichi Niitsu, "A Scalable Time-Domain Biosensor Array Using a Capacitor-Less CMATC and Logarithmic Cyclic Time-Attenuation-Based TDC with Discharge Acceleration for High-Spatial-Resolution Bio-Imaging," in Proc. IEEE International Conference on Electronics, Circuits and Systems (ICECS 2017), Dec. 2017, pp. 1-4.
Maya Matsunaga, Taiki Nakanishi, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu, "Three-Dimensional Millimeter-wave Frequency-shift-based CMOS Biosensor Using Vertically Stacked LC Oscillators," in Proc. IEEE Nordic Circuits and Systems Conference (NorCAS 2017), Oct. 2017, pp. 1-6.
Taiki Nakanishi, Maya Matsunaga, Atsuki Kobayashi, Kazuo Nakazato and Kiichi Niitsu, "A Fully-Integrated Circulating Tumor Cell Analyzer Using an on-Chip Vector Network Analyzer and a Transmission-Line-Based Detection Window in 65-nm CMOS," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2017), Oct. 2017, pp. 1-4.
Eizo Ushijima, Satoshi Fujimoto, Kiichi Niitsu, and Kazuo Nakazato, "Application of Magnetic Arrangement of Microbeads for CMOS Biosensor Array Sensitivity," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2017), Oct. 2017, pp. 1-4.
Shigeki Arata, Kenya Hayashi, Yuya Nishio, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu, "Wafer-Scale Development of 0.36 mm^2 228mV Open-Circuit-Voltage Solid-State CMOS-Compatible Glucose Fuel Cell for Healthcare IoT Application," in Proc. International Conference on Solid State Devices and Materials (SSDM 2017), Sep. 2017.
Kiichi Niitsu, Takashi Ando, Tomoki Amano, Atsuki Kobayashi, Keigo Takeda, Hiroki Kondo, Masaru Hori, and Kazuo Nakazato, "Enhancement of Open Circuit Voltage and Power of Implantable CMOS-Compatible Glucose Fuel Cell by Employing Pt-Supported on Nanographene in Anodic Catalyst," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE9), Jun. 2017.
Taiki Nakanishi, Atsuki Kobayashi, Kazuo Nakazato and Kiichi Niitsu, "A Fully Integrated CMOS Millimeter Wave Biosensor Circuit with An On-Chip Vector Network Analyzer for Circulating Tumor Cell (CTC) Analysis," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE9), Jun. 2017.
Maya Matsunaga, Atsuki Kobayashi, Kazuo Nakazato and Kiichi Niitsu, "Study on relationship between inductance and power consumption in bio integrated sensor circuit based on LC-oscillator using millimeter wave," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE9), Jun. 2017.
Yuuya Hayashi, Kazuo Nakazato and Kiichi Niitsu, "Design and Physical Implementation of Pad-Less CMOS Biosensor Array Chip for Low-Cost Packaging-Less Bio-Imaging Platform," in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017, p. 02P29.
Masaki Kawase, Kazuo Nakazato and Kiichi Niitsu, "NASBA Amplification and Detection of Micro-RNA Using Plasma-Treated CMOS FET-Based Redox Potential Sensor Array," in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017, p. 02P28.
Kohei Gamo, Kazuo Nakazato and Kiichi Niitsu, "A CMOS-based bacteria-counting sensor with 1024 × 1024 baceteria-sized microelectrode array and current integration circuit," in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017, p. 02P27.
Keisuke Itakura, Keisuke Kayano, Kazuo Nakazato and Kiichi Niitsu, "A CMOS Electrochemical Impedance Spectroscopy Biosensor in 55nm DDC Technology for High-Sensitivity Cell-State Monitoring," in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017, p. 02E11O.
Keisuke Kayano, Keisuke Itakura, Atsuki Kobayashi, Yuya Nishio, Kazuo Nakazato and Kiichi Niitsu, "Design of an energy-autonomous supply-sensing biosensor platform using biofuel cells and human-body-communication transmitter," in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017, p. 02E09O.
Atsuki Kobayashi, Kei Ikeda, Yudai Ogawa, Matsuhiko Nishizawa, Kazuo Nakazato, and Kiichi Niitsu、”Design of an Energy-Autonomous Bio-Sensing System Using a Biofuel Cell and 0.19V 53µW Integrated Supply-Sensing Sensor with a Supply-Insensitive Temperature Sensor and Inductive-Coupling Transmitter,” in Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2017), Jan. 2017, pp. 1S-11.
Kei Ikeda, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu, "A Scalable Time-Domain Biosensor Array Using Logarithmic Cyclic Time-Attenuation-Based TDC for High-Resolution and Large-Scale Bio-Imaging," in Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2017), Jan. 2017, pp. 1S-4.
Kohei Gamo, Kazuo Nakazato, and Kiichi Niitsu, "A Current-Integration-Based CMOS Amperometric Sensor with 1.2 μm × 2.05 μm Electroless-Plated Microelectrode Array for High-Sensitivity Bacteria Counting," in Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2017), Jan. 2017, pp. 1S-8.
Kei Ikeda, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu, "A Current-Mode Analog-to-Time Converter with Short-Pulse Output Capability Using Local Intra-Cell Activation for High-Speed Time Domain Biosensor Array," in Proc. IEEE Nordic Circuits and Systems Conference (NORCAS 2016), Nov. 2016, pp. 1-6.
Atsuki Kobayashi, Kei Ikeda, Yudai Ogawa, Matsuhiko Nishizawa, Kazuo Nakazato, and Kiichi Niitsu, "An Energy-Autonomous Bio-Sensing System Using a Biofuel Cell and 0.19V 53μW 65nm-CMOS Integrated Supply-Sensing Sensor with a Supply-Insensitive Temperature Sensor and Inductive-Coupling Transmitter," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2016), Oct. 2016, pp. 148-151.
Kohei Gamo, Kazuo Nakazato, and Kiichi Niitsu, "Live Demonstration: Noise-Immune Current-Integration-Based CMOS Amperometric Sensor Platform with 1.2 µm × 2.05µm Electroless-Plated Microelectrode Array for Robust Bacteria Counting" in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2016), Oct. 2016, p. 132.
Kei Ikeda, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu, "Live Demonstration: Current-Mode Analog-to-Time Converter for a Large Scale CMOS Biosensor Array," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2016), Oct. 2016, p. 131.
Kiichi Niitsu, Kei Ikeda, Keita Muto, and Kazuo Nakazato, "Design of a CMOS Voltage-to-Current Converter with Dynamic Range Enhancement Using Source Degeneration," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09P87.
Kiichi Niitsu, Kohei Yoshida, Atsuki Kobayashi, and Kazuo Nakazato, "Design of CMOS Magnetic-Based Microbeads Detection Using an Asynchronous Intra-Chip Inductive-Coupling Transceiver," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09P86.
Kei Ikeda, Kazuo Nakazato, and Kiichi Niitsu, "Analysis on Scalability of Current-Mode Analog-to-Time Converter for a High-Resolution CMOS Biosensor Array," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09P85.
Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu, "Design Methodology of Supply-Sensing CMOS Biosensor Using Bio-Fuel Cell for Energy-Autonomous Healthcare Application," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09P84.
Masaki Kawase, Kiichi Niitsu, and Kazuo Nakazato, "Temparature-Regulated CMOS Biosensor Platform for Portable MicroRNA Amplification and Detection," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09P83.
Yuya Hayashi, Kiichi Niitsu, and Kazuo Nakazato, "Pad-Less CMOS Biosensor Array Chip for Low-Cost Packaging-Less Bio-Imaging Platform," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09P82.
Kiichi Niitsu, Atsuki Kobayashi, and Kazuo Nakazato, "Energy-Autonomous, Disposable, Supply-Sensing Biosensor using Bio-Fuel Cell and Low-Voltage All-Digital CMOS Supply-controlled Ring Oscillator with Inductive-Coupling Transmitter," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09aE07O.
Takashi Ando, Kazuo Nakazato, and Kiichi Niitsu, "Enhancement of Open Circuit Voltage of Implantable CMOS-Compatible Glucose Fuel Cell by Improving the Anodic Catalyst," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 08aE07O.
Taichi Sakabe, Kiichi Niitsu, Mariko Miyachi, Yoshinori Yamanoi, Hiroshi Nishihara, Tatsuya Tomo, and Kazuo Nakazato, "Bioluminescence Detection using Photosystem I Bio-photosensor," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 07pE10O.
Yuuki Yamaji, Kiichi Niitsu, and Kazuo Nakazato, "Low-voltage Electrophoresis on a CMOS Platform with 32x32 Sample/Hold Cell Array," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 07pE09O.
Hisashi Yokoi, Kiichi Niitsu, and Kazuo Nakazato, "A CMOS Magnetic-Based Beads Recognition Circuit for Multi-Object Biosensing," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 07pE07O.
Kohei Gamo, Kiichi Niitsu, and Kazuo Nakazato, "Bacteria counting using electoless-plated 1024 × 1024 microelectrode array and CMOS-based current integration circuit," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 07pE06O.
Kiichi Niitsu, Atsuki Kobayashi, Yudai Ogawa, Matsuhiko Nishizawa, and Kazuo Nakazato、“Design of an Energy-Autonomous, Disposable, Supply-Sensing Biosensor Using Bio Fuel Cell and 0.23-V 0.25-µm Zero-Vth All-Digital CMOS Supply-Controlled Ring Oscillator with Inductive Transmitter,” in Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2016), Jan. 2016, pp. 23-24.
Kohei Gamo, Kiichi Niitsu, and Kazuo Nakazato, "Low-noise CMOS amperometric sensor for high-sensitivity bacteria counting," in Proc. IEEE Transdisciplinary-Oriented Workshop for Emerging Researchers (TOWERS 2015), Nov. 2015, p. 50.
Yuuji Yamaji, Kiichi Niitsu, and Kazuo Nakazato, "A Low-Voltage CMOS Electrophoresis Chip with 32 × 32 Sample/Hold Cell Array," in Proc. IEEE Transdisciplinary-Oriented Workshop for Emerging Researchers (TOWERS 2015), Nov. 2015, p. 47.
Miho Arai, Isao Shimizu, Haruo Kobayashi, Keita Kurihara, Shu Sasaki, Shohei Shibuya, Kiichi Niitsu, and Kazuyoshi Kubo, "Finite aperture time effects in sampling circuit," in Proc. IEEE International Conference on ASIC (ASICON 2015), Nov. 2015, pp. 1-4.
Kiichi Niitsu, Atsuki Kobayashi, Yudai Ogawa, Matsuhiko Nishizawa, and Kazuo Nakazato、“An Energy-Autonomous, Disposable, Big-Data-Based Supply-Sensing Biosensor Using Bio Fuel Cell and 0.23-V 0.25-μm Zero-Vth All-Digital CMOS Supply-Controlled Ring Oscillator with Inductive Transmitter” in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2015), Oct. 2015, pp. 595-598.
Kohei Gamo, Kiichi Niitsu, and Kazuo Nakazato、“Noise-Immune Current-Integration-Based CMOS Amperometric Sensor Platform with 1.2 μm × 2.05 μm Electroless-Plated Microelectrode Array for Robust Bacteria Counting,” in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2015), Oct. 2015, pp. 539-542.
Kohei Gamo, Kiichi Niitsu, and Kazuo Nakazato, "A CMOS Current Integrator with 1.2um × 2.05um Electroless-Plated 1024 × 1024 Microelectrode Array for High-Sensitivity Bacteria Detection," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015.
Suiki Tanaka, Kiichi Niitsu, and Kazuo Nakazato, "An Inverter-Based CMOS Level-Crossing ADC for Low-Power Biosensing," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015.
Kiichi Niitsu, Kohei Yoshida, and Kazuo Nakazato, "A Low-Power CMOS Magnetic Cell Manipulation Platform Using Charge Recycling Technique," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015.
Keita Muto, Kiichi Niitsu, and Kazuo Nakazato, "A 1.8V-Input-Range Voltage-to-Current Converter Using Source Degeneration for Low-Noise Multimodal CMOS Biosensor Array," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015.
Yuuki Yamaji, Kiichi Niitsu, and Kazuo Nakazato, "A Low-Voltage High-Resolution CMOS Electrophoresis Platform with 32×32 Sample/Hold Cell Array," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015.
Kiichi Niitsu and Kazuo Nakazato, "Non-optical Frequency-Shift Based Testing of Electrode Formation Using LC-VCO for High-Reliability CMOS Biosensor Array ," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015.
Yusuke Osawa, Daiki Hirabayashi, Naohiro Harigai, Haruo Kobayashi, Osamu Kobayashi, and Kiichi Niitsu, "Phase Noise Measurement Technique Using Delta-Sigma TDC Without Reference Clock," in Proc. 1st International Symposium of Gunma University Medical Innovation and 6th International Conference on Advanced Micro-Device Engineering, Dec. 2014, p. P093.
Hayato Komori, Kiichi Niitsu, Junko Tanaka, Yu Ishige, Masao Kamahori, and Kazuo Nakazato, "An Extended-Gate CMOS Sensor Array with Enzyme-Immobilized Microbeads for Redox-Potential Glucose Detection," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2014), Oct. 2014, pp. 464-467.
Shoko Ota, Kiichi Niitsu, Hiroki Kondo, Masaru Hori, and Kazuo Nakazato, "A CMOS Sensor Platform with 1.2 µm × 2.05 µm Electroless-Plated 1024 × 1024 Microelectrode Array for High-Sensitivity Rapid Direct Bacteria Counting," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2014), Oct. 2014, pp. 460-463.
Hayato Komori, Kiichi Niitsu, Junko Tanaka, Yu Ishige, Masao Kamahori, and Kazuo Nakazato, "Live Demonstration: An Extended-Gate CMOS Sensor Array with Enzyme-Immobilized Microbeads for Redox-Potential Glucose Detection," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2014), Oct. 2014, p. 191.
Shoko Ota, Kiichi Niitsu, Hiroki Kondo, Masaru Hori, and Kazuo Nakazato, "Live Demonstration: A CMOS Sensor Platform with 1.2 µm × 2.05 µm Electroless-Plated 1024 × 1024 Microelectrode Array for High-Sensitivity Rapid Direct Bacteria Counting," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2014), Oct. 2014, p. 185.
Hiroki Ishihara, Kiichi Niitsu, and Kazuo Nakazato, "DNA Single Base Polymerization Detection Using CMOS FET-Based Redox Potential Sensor Array," in Proc. International Conference on Solid State Devices and Materials (SSDM 2014), Sep. 2014, pp.596-597.
Yusuke Osawa, Daiki Hirabayashi, Naohiro Harigai, Haruo Kobayashi, Kiichi Niitsu, and Osamu Kobayashi, "Phase Noise Measurement Techniques Using Delta-Sigma TDC," IEEE International Mixed-Signals, Sensors, and Systems Test Workshop (IMS3TW 2014), Sep. 2014.
Masayuki Takihi, Kiichi Niitsu, and Kazuo Nakazato, "Charge-Conserved Analog-to-Time Converter for a Large-Scale CMOS Bionsensor Array," in Proc. IEEE Int. Symp. on Circuits and Systems (ISCAS 2014), Jun. 2014, pp. 33-36.
Yukiko Arai, Yu Liu, Haruo Kobayashi, Tatsuji Matsuura, Osamu Kobayashi, Masanobu Tsuji, Masafumi Watanabe, Ryoji Shiota, Noriaki Dobashi, Sadayoshi Umeda, Isao Shimizu, Kiichi Niitsu, Nobukazu Takai, and Takahiro J. Yamaguchi, "Noise-Shaping Cyclic ADC Architecture," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2013, P76.
Masahiro Murakami, Shaiful Nizam Mohyar, Haruo Kobayashi, Tatsuji Matsuura, Osamu Kobayashi, Masanobu Tsuji, Sadayoshi Umeda, Ryoji Shiota, Noriaki Dobashi, Masafumi Watanabe, Isao Shimizu, Kiichi Niitsu, Nobukazu Takai, and Takahiro J. Yamaguchi, "Study of Complex Multi-Bandpass DWA algorithm for I-Q Signal Generation," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2013, P75.
Yusuke Osawa, Daiki Hirabayashi, Naohiro Harigai, Haruo Kobayashi, Osamu Kobayashi, Kiichi Niitsu, Takahiro J. Yamaguchi, and Nobukazu Takai, "Phase Noise Measurement with Delta-Sigma TDC," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2013, P74.
Yusuke Osawa, Daiki Hirabayashi, Naohiro Harigai, Haruo Kobayashi, Osamu Kobayashi, Masanobu Tsuji, Sadayoshi Umeda, Ryoji Shiota, Noriaki Dobashi, Masafumi Watanabe, Tatsuji Matsuura, Kiichi Niitsu, Takahiro J. Yamaguchi, Nobukazu Takai, and Isao Shimizu, "Phase Noise Measurement and Testing with Delta-Sigma TDC," in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013, pp. 105-109.
Yukiko Arai, Yu Liu, Haruo Kobayashi, Tatsuji Matsuura, Osamu Kobayashi, Masanobu Tsuji, Masafumi Watanabe, Ryoji Shiota, Noriaki Dobashi, Sadayoshi Umeda, Isao Shimizu, Kiichi Niitsu, Nobukazu Takai, and Takahiro J. Yamaguchi, "Noise-Shaping Cyclic ADC Architecture," in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013, pp. 272-277.
Shaiful Nizam Mohyar, Harnani Hassan, Masahiro Murakami, Atsushi Motozawa, Haruo Kobayashi, Osamu Kobayashi, Tatsuji Matsuura, Nobukazu Takai, Isao Shimizu, Kiichi Niitsu, Masanobu Tsuji, Masafumi Watanabe, Ryoji Shiota, Noriaki Dobashi, Sadayoshi Umeda, and Takahiro J. Yamaguchi, "SFDR Improvement Algorithms for Current-Steering DACs," in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013, pp. 93-98.
Zachary Nosker, Yasunori Kobori, Haruo Kobayashi, Kiichi Niitsu, Tetsuji Yamaguchi, Eiji Shikata, Tsuyoshi Kaneko, Nobukazu Takai, and Kimio Ueda, "A Single Supply Bootsrapped Boost Regulator for Energy Harvesting Applications," in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013, pp. 231-236.
Masahiro Murakami, Shaiful Nizam Mohyar, Haruo Kobayashi, Tatsuji Matsuura, Osamu Kobayashi, Masanobu Tsuji, Sadayoshi Umeda, Ryoji Shiota, Noriaki Dobashi, Masafumi Watanabe, Isao Shimizu, Kiichi Niitsu, Nobukazu Takai, and Takahiro J. Yamaguchi, "Study of Complex Multi-Bandpass ΔΣ Modulator for I-Q Signal Generation," in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013, pp. 99-104.
Tsuyoshi Kuno, Kiichi Niitsu, and Kazuo Nakazato, "Amperometric Electrochemical Sensor Array for On-Chip Simultaneous Imaging," in Proc. International Conference on Solid State Devices and Materials (SSDM 2013), Sep. 2013, pp.846-847.
Daiki Hirabayashi, Yusuke Osawa, Naohiro Harigai, Osamu Kobayashi, Kiichi Niitsu, Takahiro J. Yamaguchi, and Nobukazu Takai, "Phase Noise Measurement with Sigma-Delta TDC," in Proc. IEEE International Test Conference (ITC 2013) (Poster Session), Sep. 2013.
Kiichi Niitsu, Naohiro Harigai, Daiki Hirabayashi, Daiki Oki, Masato Sakurai,Osamu Kobayashi, Takahiro J. Yamaguchi, and Haruo Kobayashi, "Design of a Clock Jitter Reduction Circuit Using Gated Phase Blending Between Self-Delayed Clock Edges," in Proc. IEEE/ACM Asia and South Pacific Design Automation Conference (ASP-DAC 2013), Jan. 2013, pp. 103-104.
Satoshi Uemori, Masamichi Ishii, Haruo Kobayashi, Yuta Doi, Osamu Kobayashi, Tatsuji Matsuura, Kiichi Niitsu, Yuta Arakawa, Daiki Hirabayashi, Yuji Yano, Tatsuhiro Gake, Nobukazu Takai, and Takahiro J. Yamaguchi, "Multi-bit Sigma-Delta TDC Architecture with Self-Calibration," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2012), Dec. 2012, C4L-D-7032.
Guanglei Jin, Hao Chen, Chuan Gao, Yunpeng Zhang, Haruo Kobayashi, Nobukazu Takai, Kiichi Niitsu, and Khayrollah Hadidi, "Digitally-Controlled Gm-C Bandpass Filter," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2012), Dec. 2012, C2L-B-7036.
Yasunori Kobori, Qiulin Zhu, Murong Li, Feng Zhao, Zachary Nosker, Shu Wu, Shaiful N. Mohyar, Masanori Onozawa, Haruo Kobayashi, Nobukazu Takai, Kiichi Niitsu, Takahiro Odaguchi, Isao Nakanishi, Kenji Nemoto, and Jun-ichi Matsuda, "Single Inductor Dual Output DC-DC Converter Design with Exclusive Control," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2012), Dec. 2012, B4L-D-7021.
Hong Gao,Lin Xing, YasunoriKobori, Zhao Feng, Haruo Kobayashi, Shyunsuke Miwa, Atsushi Motozawa,Zachary Nosker, Kiichi Niitsu, Nobukazu Takai, Takahiro Odaguchi, Isao Nakanishi, Kenji Nemoto, and Jun-ichi Matsuda, "DC-DC Converter with Continuous-Time Feed-Forward Sigma-Delta Modulator Control," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2012), Dec. 2012, A1L-D-7070.
Zachary Nosker, Yasunori Kobori, Haruo Kobayashi, Kiichi Niitsu, Nobukazu Takai, Takahiro Odaguchi, Isao Nakanishi, Kenji Nemoto, and Jun-ichi Matsuda, "A Fully Integrated Low Input Voltage Self Starting Charge Pump Circuit for Boost Regulator Bootstrap Startup," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012, L04.
Kazunori Sakuma, Kiichi Niitsu, Naohiro Harigai, Daiki Hirabayashi, Nobukazu Takai, Takahiro J. Yamaguchi, and Haruo Kobayashi, "Analysis of Jitter in Delay Line for High-Accuracy On-chip Jitter Measurements," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012, P57.
Yu Liu, Haruo Kobayashi, Tatsuji Matsuura, Oamu Kobayashi, Nobukazu Takai, and Kiichi Niitsu, "Self-Calibration Technique of Cyclic ADC," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012, P56.
Naohiro Harigai, Kiichi Niitsu, Daiki Hirabayashi, Masato Sakurai, Yusuke Osawa, Takahiro J. Yamaguchi, and Haruo Kobayashi, "A Study on Design for High-Speed Operation in a Cascaded Open-Loop Time Amplifier," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012, P52.
Yohei Tan, Daiki Oki, Yu Liu, Zachary Nosker, Haruo Kobayashi, Osamu Kobayashi, Tatsuji Matsuura, Atsuhiro Katayama, Li Quan, Ensi Li, Kiichi Niitsu, and Nobukazu Takai, "Self-Calibration Technique of Pipeline ADC Using Cyclic Configuration," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012, P51.
Kiichi Niitsu, Takahiro J. Yamaguchi, Masahiro Ishida, and Haruo Kobayashi, "Post-Silicon Jitter Measurements," in Proc. IEEE Asian Test Symposium (ATS 2012), Nov. 2012, pp. 258-263.
Takahiro Yamaguchi, Kunihiro Asada, Kiichi Niitsu, Mohamed Abbas, Satoshi Komatsu, Haruo Kobayashi, and Jose Moreira, "A New Procedure for Measuring High-Accuracy Probability Density Functions," in Proc. IEEE Asian Test Symposium (ATS 2012), Nov. 2012, pp. 185-190.
Keisuke Kato, Fumitaka Abe, Kazuyuki Wakabayashi, Chuan Gao, Takafumi Yamada, Haruo Kobayashi, Osamu Kobayashi, and Kiichi Niitsu, "Two-Tone Signal Generation for Communication Application ADC Testing," in Proc. IEEE Asian Test Symposium, Nov. 2012 (ATS 2012), pp. 179-184.
Yasunori Kobori, Lin Xing, Hong Gao, Masanori Onozawa, Shu Wu, Shaiful Nizam Mohyar, Zachary Nosker, Haruo Kobayashi, Nobukazu Takai, and Kiichi Niitsu, "Non-Isolated Direct AC-DC Converter Design with BCM-PFC Circuit," in Proc. International Conference on Power Eingineering, Paper ID : ID78000, Oct. 2012.
Kiichi Niitsu, Naohiro Harigai, Daiki Hirabayashi, Daiki Oki, Masato Sakurai,Osamu Kobayashi, Takahiro J. Yamaguchi, and Haruo Kobayashi, "A Clock Jitter Reduction Circuit Using Gated Phase Blending Between Self-Delayed Clock Edges," in Proc. IEEE Symposium on VLSI Circuits (VLSIC 2012), Jun. 2012, pp. 142-143.
Satoshi Uemori, Masamichi Ishii, Haruo Kobayashi, Yuta Doi, Osamu Kobayashi, Tatsuji Matsuura, Kiichi Niitsu, Fumitaka Abe, Daiki Hirabayashi, "Multi-bit Sigma-Delta TDC Architecture for Digital Signal Timing Measurement," in Proc. IEEE International Mixed-Signals, Sensors, and Systems Test Workshop (IMS3TW 2012), May 2012, pp. 67-72.
Keisuke Kato, Fumitaka Abe, Kazuyuki Wakabayashi, Takafumi Yamada, Haruo Kobayashi, Osamu Kobayashi, and Kiichi Niitsu, "Low-Distortion Single-Tone and Two-Tone Sinewave Generation Algorithms Using an Arbitrary Waveform Generator," in Proc. IEEE International Mixed-Signals, Sensors, and Systems Test Workshop (IMS3TW 2012), May 2012, pp. 85-90.
Kiichi Niitsu, Masato Sakurai, Naohiro Harigai, Daiki Hirabayashi, Takahiro J. Yamaguchi, and Haruo Kobayashi, "A Reference-Clock-Free On-Chip Timing Jitter Measurement Circuit Using a Cascaded Time Difference Amplifier in 65nm CMOS," in Proc. IEEE/ACM Asia and South Pacific Design Automation Conference (ASP-DAC 2012), Jan. 2012, pp. 553-554.
Yasunori Kobori, Lin Xing, Gao Hong, Naohisa Okamoto, Masaki Ohshima, Haruo Kobayashi, Nobukazu Takai, and Kiichi Niitsu, "Novel AC-DC Direct Converter Design with PFC", in Proc. International Conference on Power Electronics and Power Engineering (ICPEPE 2011), Dec. 2011, ID: TH86000.
Masato Sakurai, Kiichi Niitsu, Naohiro Harigai, Daiki Hirabayashi, Daiki Oki, Takahiro J. Yamaguchi, and Haruo Kobayashi, "A Study on Jitter Accumulation in Interleaved Phase Frequency Detectors for High-Accuracy On-Chip Jitter Measurement Circuits," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2011, P67.
Zachary Nosker, Yasunori Kobori, Haruo Kobayashi, Kiichi Niitsu, Nobukazu Takai, Takeshi Oomori, Takahiro Odaguchi, Isao Nakanishi, Kenji Nemoto, and Jun-ichi Matsuda, "A High Efficiency, Extended Load Range Boost Regulator Optimized for Energy Harvesting Applications," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2011, P66.
Masato Sakurai, Kiichi Niitsu, Naohiro Harigai, Daiki Hirabayashi, Daiki Oki, Takahiro J. Yamaguchi, and Haruo Kobayashi, "Analysis of Jitter Accumulation in Interleaved Phase Frequency Detectors for High-Accuracy On-Chip Jitter Measurements," in Proc. International SoC Design Conference (ISOCC 2011), Nov. 2011, pp. 146-149.
Kiichi Niitsu, Masato Sakurai, Naohiro Harigai, Takahiro J. Yamaguchi, and Haruo Kobayashi, "An On-Chip Timing Jitter Measurement Circuit Using a Self-Referenced Clock and a Cascaded Time Difference Amplifier with Duty-Cycle Compensation," in Proc. IEEE Asian Solid-State Circuits Conference (A-SSCC 2011), Nov. 2011, pp. 201-204.
Zachary Nosker, Yasunori Kobori, Haruo Kobayashi, Kiichi Niitsu, Nobukazu Takai, Takeshi Oomori, Takahiro Odaguchi, Isao Nakanishi, Kenji Nemoto, and Jun-ichi Matsuda, "A Small, Low Power Boost Regulator Optimized for Energy Harvesting Applications," in Proc. IEEJ International Analog VLSI Workshop (AVW 2011), Nov. 2011, ID:10026.
Jiani Ye, Zachary Nosker, Kazuyuki Wakabayashi, Takuya Yagi, Nobukazu Takai, Kiichi Niitsu, Keisuke Kato, Takao Ootsuki, Haruo Kobayashi, Osamu Yamamoto, and Isao Akiyama, "Architecture of High-Efficiency Digitally-Controlled Class-E Power Amplifier," in Proc. IEEJ International Analog VLSI Workshop (AVW 2011), Nov. 2011, ID:10018.
Naohiro Harigai, Kiichi Niitsu, Daiki Oki, Masato Sakurai, Takahiro J. Yamaguchi, and Haruo Kobayashi, "A Twistedly-Cascaded Time Difference Amplifier for High Robustness Against Process Variation," in Proc. International Conference on Solid State Devices and Materials (SSDM 2011), Sep. 2011, pp. 184-185.
Takafumi Yamada, Osamu Kobayashi, Keisuke Kato, Kazuyuki Wakabayashi, Haruo Kobayashi, Tatsuji Matsuura, Yuji Yano, Tatsuhiro Gake, Kiichi Niitsu, Nobukazu Takai, and Takahiro J. Yamaguchi, "Low-Distortion Single-Tone and Two-Tone Sinewave Generation Algorithms Using ΣΔ DAC," in Proc. IEEE International Test Conference (ITC 2011) (Poster Session), Sep. 2011, PO19.
Kazuyuki Wakabayashi, Takafumi Yamada, Satoshi Uemori, Osamu Kobayashi, Keisuke Kato, Haruo Kobayashi, Kiichi Niitsu, Hiroyuki Miyashita, Shinya Kishigami, Kunihito Rikino, Yuji Yano, and Tatsuhiro Gake, "Low-Distortion Single-Tone and Two-Tone Sinewave Generation Algorithms Using an Arbitrary Waveform Generator," in Proc. IEEE International Mixed-Signals, Sensors, and Systems Test Workshop (IMS3TW 2011), May 2011, pp. 33-38.
Satoshi Uemori, Takahiro J. Yamaguchi, Satoshi Ito, Yohei Tan, Haruo Kobayashi, Nobukazu Takai, Kiichi Niitsu, and Nobuyoshi Ishikawa, "ADC Linearity Test Signal Generation Algorithm," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2010), Dec. 2010, pp. 44-47.
Tomohiko Ogawa, Haruo Kobayashi, Yohei Tan, Satoshi Ito, Satoshi Uemori, Nobukazu Takai, Kiichi Niitsu, Takahiro J. Yamaguchi, Tatsuji Matsuura, and Nobuyoshi Ishikawa, "SAR ADC That is Configurable to Optimize Yield," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2010), Dec. 2010, pp. 374-377.
Satoshi Ito, Shigeyuki Nishimura, Haruo Kobayashi, Satoshi Uemori, Yohei Tan, Nobukazu Takai, Takahiro J. Yamaguchi, and Kiichi Niitsu, "Stochastic TDC Architecture with Self-Calibration," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2010), Dec. 2010, pp. 1027-1030.
Tomohiko Ogawa, Haruo Kobayashi, Youhei Tan, Satoshi Ito, Satoshi Uemori, Nobukazu Takai, and Kiichi Niitsu, "Reconfigurable SAR ADC for Yield Optimization," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2010, 2P18.
Keita Takatsu, Kiichi Niitsu, Tsunaaki Shidei, Noriyuki Miura, and Tadahiro Kuroda, "A 0.45V-to-2.7V Inductive-Coupling Level Shifter," in Proc. IEEE Asian Solid-State Circuits Conference (A-SSCC 2010), Nov. 2010, pp. 205-208.
Kiichi Niitsu, Vishal V. Kurkarni, Kang Shinmo, Hiroki Ishikuro, and Tadahiro Kuroda, "A 14GHz AC-Coupled Clock Distribution Using Single LC-VCO and Distributed Phase Interpolators," in Proc. International Conference on Solid State Devices and Materials (SSDM 2009), Oct. 2009, pp. 82-83.
Shotaro Saito, Yoshinori Kohama, Yasufumi Sugimori, Yohei Hasegawa, Hiroki Matsutani, Toru Sano, Kazutaka Kasuga, Yoichi Yoshida, Kiichi Niitsu, Noriyuki Miura, Tadahiro Kuroda, and Hideharu Amano, "MuCCRA-Cube: a 3D Dynamically Reconfigurable Processor with Inductive-Coupling Link," in Proc. IEEE International Conference on Field Programmable Logic and Applications (FPL 2009), Sep. 2009, pp. 1-6.
Kenichi Osada, Makoto Saen, Yasuyuki Okuma, Kiichi Niitsu, Yasuhisa Shimazaki, Yasufumi Sugimori, Yoshinori Kohama, Kazutaka Kasuga, Itaru Nonomura, Naohiko Irie, Toshihiro Hattori, Atsushi Hasegawa, and Tadahiro Kuroda, "3D System Integration of Processor and Multi- Stacked SRAMs by Using Inductive-Coupling Links," in Proc. IEEE Symposium on VLSI Circuits (VLSIC 2009), Jun. 2009, pp. 256-257.
Yoshinori Kohama, Yasufumi Sugimori, Shotaro Saito, Yohei Hasegawa, Toru Sano, Kazutaka Kasuga, Yoichi Yoshida, Kiichi Niitsu, Noriyuki Miura, Hideharu Amano, and Tadahiro Kuroda, "A Scalable 3D Processor by Homogeneous Chip Stacking with Inductive-Coupling Link," in Proc. IEEE Symposium on VLSI Circuits (VLSIC 2009), Jun. 2009, pp. 94-95.
Kiichi Niitsu, Yuan Yuxiang, Hiroki Ishikuro, and Tadahiro Kuroda, "High Efficiency Inductive-Coupling Power Delivery With Sandwiching Thin Films of Magnetic Material," in Proc. IEEE International Magnetics Conference (INTERMAG 2009), May 2009, p. 59.
K.Hayashi, S.Arata, G.Xu, S.Murakami, C.D.Bui, A.Kobayashi, and K.Niitsu,"0.27nW Fully-Integrated Supply-Modulated OOK Transmitter in 65nm CMOS for Self-Powered and Low-Cost Continuous Glucose Monitoring Contact Lens" in Proc. 11th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 12th International Conference on Plasma-Nano Technology & Science (ISPlasma2019 / IC-PLANTS2019), Mar. 2019, p.8323.
M.Z.Islam, S.Arata, K.Hayashi, A.Kobayashi and K.Niitsu,"Various Type of CNT Dispersion Applied to Bio-Fuel Cell for High Yield of Production" in Proc. 11th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 12th International Conference on Plasma-Nano Technology & Science (ISPlasma2019 / IC-PLANTS2019), Mar. 2019, p.8323.
K. Niitsu, "A 65-nm CMOS Fully-Integrated Circulating Tumor Cell and Exosome Analyzer Using an On-Chip Vector Network Analyzer and a Transmission-Line-Based Detection Window," in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019.
K. Niitsu, Y. Yamaji, A. Kobayashi, K. Nakazato"A Low-Voltage CMOS Electrophoresis IC Using Electroless Gold Plating for Small-Form-Factor Biomolecule Manipulation," in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019.
A. Kobayashi, Y. Nishio, K. Hayashi, S. Arata, K. Niitsu "Design of Gate-Leakage-Based Timer Using an Amplifier-Less Replica-Bias Switching Technique in 55-nm DDC CMOS," in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019.
K. Niitsu, T. Sakabe, M. Miyachi, Y. Yamanoi, H. Nishihara, T. Tomo, K. Nakazato, "2D Optical Imaging Using Photosystem I Photosensor Platform with 32×32 CMOS Biosensor Array,"in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019.
K. Hayashi, S. Arata, G. Xu, S. Murakami, C. D. Bui, T. Doike, M. Matsunaga, A. Kobayashi, K. Niitsu,"Design of 385 x 385 µm2 0.165V 270pW Fully-Integrated Supply-Modulated OOK Transmitter in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens,"in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019.
M. Matsunaga, T. Nakanishi, A. Kobayashi, K. Niitsu, "A Three-Dimensional Millimeter-Wave Frequency-Shift Based CMOS Biosensor using Vertically Stacked Spiral Inductors in LC Oscillators," in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019.
S. Arata, K. Hayashi, X. Ge, S. Murakami, C. D. Bui, A. Kobayashi, and K. Niitsu, "Reactive Ion Etching in Development of 0.6mm by 0.6mm CMOS-Compatible Solid-State Glucose Fuel Cell for Small-Form-Factor Biomedical IoT Applications," in Proc. International Symposium on Dry Process (DPS 2018), Nov. 2018, p. 1.
S. Murakami, K. Hayashi, S. Arata, G. Xu, C. D. Bui, A. Kobayashi and K. NiitsuAffiliation "A Stochastic Oscillator Using Multiple Ring Oscillators and OR-Gate for Low Voltage Operation in 65 nm CMOS,"in Proc. IEEE Prime Asia 2018.
K. Kayano, M. Matsunaga, K. Itakura, A. Kobayashi and K. Niitsu, "Design of an Energy-Autonomous Supply-Sensing Biosensor Platform Using Biofuel Cells and Human-Body-Communication Transmitter," in Proc. IEEE Prime Asia 2018.
Y. Nishio, A. Kobayashi and K. Niitsu, "A Constant-Power Inductive-Coupling Transmitter Using Auxiliary Driving Technique in 65nm SOTB CMOS for Low-Power Supply-Sensing Biosensing Platform toward Healthcare IoTs," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2018), Oct. 2018, pp. 1-4.
G. Xu, K. Hayashi, S. Arata, S. Murakami, C. D. Bui, A. Kobayashi and K. Niitsu, "A BER-Modulated 3-Coil Inductive-Coupling Transceiver Using Dynamic Intermediate Interference Control Technique," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2018), Oct. 2018, pp. 1-4.
K. Hayashi, S. Arata, G. Xu, S. Murakami, D. C. Bui, T. Doike, M. Matsunaga, A. Kobayashi, and K. Niitsu, "Live Demonstration: 385 X 385 µm2 0.165V 270pW Fully-Integrated Supply-Modulated OOK TX in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2018), Oct. 2018, p. 1.
K. Hayashi, S. Arata, G. Xu, S. Murakami, D. C. Bui, T. Doike, M. Matsunaga, A. Kobayashi, and K. Niitsu, "A 385um × 385um 0.165 V 0.27 nW Fully-Integrated Supply-Modulated OOK CMOS TX in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2018), Oct. 2018, pp. 1-4.
S. Arata, K. Hayashi, X. Ge, S. Murakami, D. C. Bui, A. Kobayashi, and K. Niitsu, "10% Yield and 370-mV OCV of 0.36 mm2 Solid-State CMOS-Compatible Glucose Fuel Cell by Using Repeated Separator Coating," in Proc. International Conference on Solid State Devices and Materials (SSDM 2018), Sep. 2018.
T. Doike, K. Hayashi, S. Arata, K. N. Mohammad, A. Kobayashi, and K. Niitsu, "A Blood Glucose Level Prediction System Using Machine Learning Based on Recurrent Neural Network for Hypoglycemia Prevention," in Proc. IEEE International NEWCAS Conference 2018 (NEWCAS 2018), Jun. 2018.
K. Niitsu, T. Sakabe, M. Miyachi, Y. Yamanoi, H. Nishihara, T. Tomo, K. Nakazato, "Demonstration of 2D Optical Imaging Using Photosystem I Photosensor Platform with 32×32 CMOS Biosensor Array," in Proc. IEEE International NEWCAS Conference 2018 (NEWCAS 2018), Jun. 2018.
A. Kobayashi, Y. Nishio, K. Hayashi, K. Nakazato, and K. Niitsu, "A 350-mV, Under-200-ppm Allan Deviation Floor Gate-Leakage-Based Timer Using an Amplifier-Less Replica-Bias Switching Technique in 55-nm DDC CMOS," in Proc. IEEE Custom Integrated Circuit Conference (CICC 2018), Apr. 2018, pp. 1-4.
K. Niitsu, "Energy-autonomous Biomedical IoTs using Plasma-enhanced Bio-fuel Cell and Low-energy CMOS Biosensor," in Proc. 10th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 11th International Conference on Plasma-Nano Technology & Science (ISPlasma2018 / IC-PLANTS2018), Mar. 2018, p. 06pA14I.
T. Doike and K. Niitsu, "An AI-Enhanced Blood Glucose Sensing System Using Machine Learning Based on Recurrent Neural Network for Hypoglycemia Prevention," in Proc. 10th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 11th International Conference on Plasma-Nano Technology & Science (ISPlasma2018 / IC-PLANTS2018), Mar. 2018, p. 07P65.
S. Nagata, N. Kameshiro, D. Terutsuki, H. Mitsuno, T. Sakurai, K. Niitsu, K. Nakazato, R. Kanzaki, and M. Ando, "A HIGH-DENSITY INTEGRATED ODORANT SENSOR ARRAY SYSTEM BASED ON INSECT CELLS EXPRESSING INSECT ODORANT RECEPTORS," in Proc. IEEE International Conference on Micro Electro Mechanical Systems(MEMS 2018), Jan. 2018.
Y. Nishio, A. Kobayashi, and K. Niitsu, "A 28um^2, 0.11Hz, 4.5pW Gate Leakage Timer Using Differential Leakage Technique in 55nm DDC CMOS for Small-Footprint, Low-Frequency and Low-Power Timing Generation," in Proc. IEEE International Conference on Electronics, Circuits and Systems (ICECS 2017), Dec. 2017, pp. 1-4.
K. Ikeda, A. Kobayashi, and K. Niitsu, "A Scalable Time-Domain Biosensor Array Using a Capacitor-Less CMATC and Logarithmic Cyclic Time-Attenuation-Based TDC with Discharge Acceleration for High-Spatial-Resolution Bio-Imaging," in Proc. IEEE International Conference on Electronics, Circuits and Systems (ICECS 2017), Dec. 2017, pp. 1-4.
M. Matsunaga, T. Nakanishi, A. Kobayashi, K. Nakazato, and K. Niitsu, "Three-Dimensional Millimeter-wave Frequency-shift-based CMOS Biosensor Using Vertically Stacked LC Oscillators," in Proc. IEEE Nordic Circuits and Systems Conference (NorCAS 2017), Oct. 2017, pp. 1-6.
T. Nakanishi, M. Matsunaga, A. Kobayashi, K. Nakazato and K. Niitsu, "A Fully-Integrated Circulating Tumor Cell Analyzer Using an on-Chip Vector Network Analyzer and a Transmission-Line-Based Detection Window in 65-nm CMOS," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2017), Oct. 2017, pp. 1-4.
E. Ushijima, S. Fujimoto, K. Niitsu, and K. Nakazato, "Application of Magnetic Arrangement of Microbeads for CMOS Biosensor Array Sensitivity," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2017), Oct. 2017, pp. 1-4.
S. Arata, K. Hayashi, Y. Nishio, A. Kobayashi, K. Nakazato, and K. Niitsu, "Wafer-Scale Development of 0.36 mm^2 228mV Open-Circuit-Voltage Solid-State CMOS-Compatible Glucose Fuel Cell for Healthcare IoT Application," in Proc. International Conference on Solid State Devices and Materials (SSDM 2017), Sep. 2017.
K. Niitsu, T. Ando, T. Amano, A. Kobayashi, K. Takeda, H. Kondo, M. Hori, and K. Nakazato, "Enhancement of Open Circuit Voltage and Power of Implantable CMOS-Compatible Glucose Fuel Cell by Employing Pt-Supported on Nanographene in Anodic Catalyst," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE9), Jun. 2017.
T. Nakanishi, A. Kobayashi, K. Nakazato and K. Niitsu, "A Fully Integrated CMOS Millimeter Wave Biosensor Circuit with An On-Chip Vector Network Analyzer for Circulating Tumor Cell (CTC) Analysis," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE9), Jun. 2017.
M. Matsunaga, A. Kobayashi, K. Nakazato and K. Niitsu, "Study on relationship between inductance and power consumption in bio integrated sensor circuit based on LC-oscillator using millimeter wave," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE9), Jun. 2017.
Y. Hayashi, K. Nakazato and K. Niitsu, "Design and Physical Implementation of Pad-Less CMOS Biosensor Array Chip for Low-Cost Packaging-Less Bio-Imaging Platform," in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017, p. 02P29.
M. Kawase, K. Nakazato and K. Niitsu, "NASBA Amplification and Detection of Micro-RNA Using Plasma-Treated CMOS FET-Based Redox Potential Sensor Array," in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017, p. 02P28.
K. Gamo, K. Nakazato and K. Niitsu, "A CMOS-based bacteria-counting sensor with 1024 × 1024 baceteria-sized microelectrode array and current integration circuit," in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017, p. 02P27.
K. Itakura, K. Kayano, K. Nakazato and K. Niitsu, "A CMOS Electrochemical Impedance Spectroscopy Biosensor in 55nm DDC Technology for High-Sensitivity Cell-State Monitoring," in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017, p. 02E11O.
K. Kayano, K. Itakura, A. Kobayashi, Y. Nishio, K. Nakazato and K. Niitsu, "Design of an energy-autonomous supply-sensing biosensor platform using biofuel cells and human-body-communication transmitter," in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017, p. 02E09O.
A. Kobayashi, K. Ikeda, Y. Ogawa, M. Nishizawa, K. Nakazato, and K. Niitsu、”Design of an Energy-Autonomous Bio-Sensing System Using a Biofuel Cell and 0.19V 53µW Integrated Supply-Sensing Sensor with a Supply-Insensitive Temperature Sensor and Inductive-Coupling Transmitter,” in Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2017), Jan. 2017, pp. 1S-11.
K. Ikeda, A. Kobayashi, K. Nakazato, and K. Niitsu, "A Scalable Time-Domain Biosensor Array Using Logarithmic Cyclic Time-Attenuation-Based TDC for High-Resolution and Large-Scale Bio-Imaging," in Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2017), Jan. 2017, pp. 1S-4.
K. Gamo, K. Nakazato, and K. Niitsu, "A Current-Integration-Based CMOS Amperometric Sensor with 1.2 μm × 2.05 μm Electroless-Plated Microelectrode Array for High-Sensitivity Bacteria Counting," in Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2017), Jan. 2017, pp. 1S-8.
K. Ikeda, A. Kobayashi, K. Nakazato, and K. Niitsu, "A Current-Mode Analog-to-Time Converter with Short-Pulse Output Capability Using Local Intra-Cell Activation for High-Speed Time Domain Biosensor Array," in Proc. IEEE Nordic Circuits and Systems Conference (NORCAS 2016), Nov. 2016, pp. 1-6.
A. Kobayashi, K. Ikeda, Y. Ogawa, M. Nishizawa, K. Nakazato, and K. Niitsu, "An Energy-Autonomous Bio-Sensing System Using a Biofuel Cell and 0.19V 53μW 65nm-CMOS Integrated Supply-Sensing Sensor with a Supply-Insensitive Temperature Sensor and Inductive-Coupling Transmitter," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2016), Oct. 2016, pp. 148-151.
K. Gamo, K. Nakazato, and K. Niitsu, "Live Demonstration: Noise-Immune Current-Integration-Based CMOS Amperometric Sensor Platform with 1.2 µm × 2.05µm Electroless-Plated Microelectrode Array for Robust Bacteria Counting" in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2016), Oct. 2016, p. 132.
K. Ikeda, A. Kobayashi, K. Nakazato, and K. Niitsu, "Live Demonstration: Current-Mode Analog-to-Time Converter for a Large Scale CMOS Biosensor Array," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2016), Oct. 2016, p. 131.
K. Niitsu, K. Ikeda, K. Muto, and K. Nakazato, "Design of a CMOS Voltage-to-Current Converter with Dynamic Range Enhancement Using Source Degeneration," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09P87.
K. Niitsu, K. Yoshida, A. Kobayashi, and K. Nakazato, "Design of CMOS Magnetic-Based Microbeads Detection Using an Asynchronous Intra-Chip Inductive-Coupling Transceiver," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09P86.
K. Ikeda, K. Nakazato, and K. Niitsu, "Analysis on Scalability of Current-Mode Analog-to-Time Converter for a High-Resolution CMOS Biosensor Array," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09P85.
A. Kobayashi, K. Nakazato, and K. Niitsu, "Design Methodology of Supply-Sensing CMOS Biosensor Using Bio-Fuel Cell for Energy-Autonomous Healthcare Application," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09P84.
M. Kawase, K. Niitsu, and K. Nakazato, "Temparature-Regulated CMOS Biosensor Platform for Portable MicroRNA Amplification and Detection," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09P83.
Y. Hayashi, K. Niitsu, and K. Nakazato, "Pad-Less CMOS Biosensor Array Chip for Low-Cost Packaging-Less Bio-Imaging Platform," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09P82.
K. Niitsu, A. Kobayashi, and K. Nakazato, "Energy-Autonomous, Disposable, Supply-Sensing Biosensor using Bio-Fuel Cell and Low-Voltage All-Digital CMOS Supply-controlled Ring Oscillator with Inductive-Coupling Transmitter," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 09aE07O.
T. Ando, K. Nakazato, and K. Niitsu, "Enhancement of Open Circuit Voltage of Implantable CMOS-Compatible Glucose Fuel Cell by Improving the Anodic Catalyst," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 08aE07O.
T. Sakabe, K. Niitsu, M. Miyachi, Y. Yamanoi, H. Nishihara, T. Tomo, and K. Nakazato, "Bioluminescence Detection using Photosystem I Bio-photosensor," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 07pE10O.
Y. Yamaji, K. Niitsu, and K. Nakazato, "Low-voltage Electrophoresis on a CMOS Platform with 32x32 Sample/Hold Cell Array," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 07pE09O.
H. Yokoi, K. Niitsu, and K. Nakazato, "A CMOS Magnetic-Based Beads Recognition Circuit for Multi-Object Biosensing," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 07pE07O.
K. Gamo, K. Niitsu, and K. Nakazato, "Bacteria counting using electoless-plated 1024 × 1024 microelectrode array and CMOS-based current integration circuit," in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016, 07pE06O.
K. Niitsu, A. Kobayashi, Y. Ogawa, M. Nishizawa, and K. Nakazato、“Design of an Energy-Autonomous, Disposable, Supply-Sensing Biosensor Using Bio Fuel Cell and 0.23-V 0.25-µm Zero-Vth All-Digital CMOS Supply-Controlled Ring Oscillator with Inductive Transmitter,” in Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2016), Jan. 2016, pp. 23-24.
K. Gamo, K. Niitsu, and K. Nakazato, "Low-noise CMOS amperometric sensor for high-sensitivity bacteria counting," in Proc. IEEE Transdisciplinary-Oriented Workshop for Emerging Researchers (TOWERS 2015), Nov. 2015, p. 50.
Y. Yamaji, K. Niitsu, and K. Nakazato, "A Low-Voltage CMOS Electrophoresis Chip with 32 × 32 Sample/Hold Cell Array," in Proc. IEEE Transdisciplinary-Oriented Workshop for Emerging Researchers (TOWERS 2015), Nov. 2015, p. 47.
M. Arai, I. Shimizu, H. Kobayashi, K. Kurihara, S. Sasaki, S. Shibuya, K. Niitsu, and K. Kubo, "Finite aperture time effects in sampling circuit," in Proc. IEEE International Conference on ASIC (ASICON 2015), Nov. 2015, pp. 1-4.
K. Niitsu, A. Kobayashi, Y. Ogawa, M. Nishizawa, and K. Nakazato、“An Energy-Autonomous, Disposable, Big-Data-Based Supply-Sensing Biosensor Using Bio Fuel Cell and 0.23-V 0.25-μm Zero-Vth All-Digital CMOS Supply-Controlled Ring Oscillator with Inductive Transmitter” in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2015), Oct. 2015, pp. 595-598.
K. Gamo, K. Niitsu, and K. Nakazato、“Noise-Immune Current-Integration-Based CMOS Amperometric Sensor Platform with 1.2 μm × 2.05 μm Electroless-Plated Microelectrode Array for Robust Bacteria Counting,” in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2015), Oct. 2015, pp. 539-542.
K. Gamo, K. Niitsu, and K. Nakazato, "A CMOS Current Integrator with 1.2um × 2.05um Electroless-Plated 1024 × 1024 Microelectrode Array for High-Sensitivity Bacteria Detection," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015.
S. Tanaka, K. Niitsu, and K. Nakazato, "An Inverter-Based CMOS Level-Crossing ADC for Low-Power Biosensing," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015.
K. Niitsu, K.Yoshida, and K. Nakazato, "A Low-Power CMOS Magnetic Cell Manipulation Platform Using Charge Recycling Technique," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015.
K. Muto, K. Niitsu, and K. Nakazato, "A 1.8V-Input-Range Voltage-to-Current Converter Using Source Degeneration for Low-Noise Multimodal CMOS Biosensor Array," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015.
Y. Yamaji, K. Niitsu, and K. Nakazato, "A Low-Voltage High-Resolution CMOS Electrophoresis Platform with 32×32 Sample/Hold Cell Array," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015.
K. Niitsu and K. Nakazato, "Non-optical Frequency-Shift Based Testing of Electrode Formation Using LC-VCO for High-Reliability CMOS Biosensor Array ," in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015.
Y. Osawa, D. Hirabayashi, N. Harigai, H. Kobayashi, O. Kobayashi, and K. Niitsu, "Phase Noise Measurement Technique Using Delta-Sigma TDC Without Reference Clock," in Proc. 1st International Symposium of Gunma University Medical Innovation and 6th International Conference on Advanced Micro-Device Engineering, Dec. 2014, p. P093.
H. Komori, K. Niitsu, J. Tanaka, Y. Ishige, M. Kamahori, and K. Nakazato, "An Extended-Gate CMOS Sensor Array with Enzyme-Immobilized Microbeads for Redox-Potential Glucose Detection," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2014), Oct. 2014, pp. 464-467.
S. Ota, K. Niitsu, H. Kondo, M. Hori, and K. Nakazato, "A CMOS Sensor Platform with 1.2 µm × 2.05 µm Electroless-Plated 1024 × 1024 Microelectrode Array for High-Sensitivity Rapid Direct Bacteria Counting," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2014), Oct. 2014, pp. 460-463.
H. Komori, K. Niitsu, J. Tanaka, Y. Ishige, M. Kamahori, and K. Nakazato, "Live Demonstration: An Extended-Gate CMOS Sensor Array with Enzyme-Immobilized Microbeads for Redox-Potential Glucose Detection," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2014), Oct. 2014, p. 191.
S. Ota, K. Niitsu, H. Kondo, M. Hori, and K. Nakazato, "Live Demonstration: A CMOS Sensor Platform with 1.2 µm × 2.05 µm Electroless-Plated 1024 × 1024 Microelectrode Array for High-Sensitivity Rapid Direct Bacteria Counting," in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2014), Oct. 2014, p. 185.
H. Ishihara, K. Niitsu, and K. Nakazato, "DNA Single Base Polymerization Detection Using CMOS FET-Based Redox Potential Sensor Array," in Proc. International Conference on Solid State Devices and Materials (SSDM 2014), Sep. 2014, pp.596-597.
Y. Osawa, D. Hirabayashi, N. Harigai, H. Kobayashi, K. Niitsu, and O. Kobayashi, "Phase Noise Measurement Techniques Using Delta-Sigma TDC," IEEE International Mixed-Signals, Sensors, and Systems Test Workshop (IMS3TW 2014), Sep. 2014.
M. Takihi, K. Niitsu, and K. Nakazato, "Charge-Conserved Analog-to-Time Converter for a Large-Scale CMOS Bionsensor Array," in Proc. IEEE Int. Symp. on Circuits and Systems (ISCAS 2014), Jun. 2014, pp. 33-36.
Y. Arai, Y Liu, H. Kobayashi, T. Matsuura, O. Kobayashi, M. Tsuji, M. Watanabe, R. Shiota, N. Dobashi, S. Umeda, I. Shimizu, K. Niitsu, N. Takai, and T. J. Yamaguchi, "Noise-Shaping Cyclic ADC Architecture," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2013, P76.
M. Murakami, S. N. Mohyar, H. Kobayashi, T. Matsuura, O. Kobayashi, M. Tsuji, S. Umeda, R. Shiota, N. Dobashi, M. Watanabe, I. Shimizu, K. Niitsu, N. Takai, and T. J. Yamaguchi, "Study of Complex Multi-Bandpass DWA algorithm for I-Q Signal Generation," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2013, P75.
Y. Osawa, D. Hirabayashi, N. Harigai, H. Kobayashi, O. Kobayashi, K. Niitsu, T. J. Yamaguchi, and N. Takai, "Phase Noise Measurement with Delta-Sigma TDC," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2013, P74.
Y. Osawa, D. Hirabayashi, N. Harigai, H. Kobayashi, O. Kobayashi, M. Tsuji, S. Umeda, R. Shiota, N. Dobashi, M. Watanabe, T. Matsuura, K. Niitsu, T. J. Yamaguchi, N. Takai, and I. Shimizu, "Phase Noise Measurement and Testing with Delta-Sigma TDC," in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013, pp. 105-109.
Y. Arai, Y. Liu, H. Kobayashi, T. Matsuura, O. Kobayashi, M. Tsuji, M. Watanabe, R. Shiota, N. Dobashi, S. Umeda, I. Shimizu, K. Niitsu, N. Takai, and T. J. Yamaguchi, "Noise-Shaping Cyclic ADC Architecture," in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013, pp. 272-277.
S. N. Mohyar, H. Hassan, M. Murakami, A. Motozawa, H. Kobayashi, O. Kobayashi, T. Matsuura, N. Takai, I. Shimizu, K. Niitsu, M. Tsuji, M. Watanabe, R. Shiota, N. Dobashi, S. Umeda, and T. J. Yamaguchi, "SFDR Improvement Algorithms for Current-Steering DACs," in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013, pp. 93-98.
Z. Nosker, Y. Kobori, H. Kobayashi, K. Niitsu, T. Yamaguchi, E. Shikata, T. Kaneko, N. Takai, and K. Ueda, "A Single Supply Bootsrapped Boost Regulator for Energy Harvesting Applications," in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013, pp. 231-236.
M. Murakami, S. N. Mohyar, H. Kobayashi, T. Matsuura, O. Kobayashi, M. Tsuji, S. Umeda, R. Shiota, N. Dobashi, M. Watanabe, I. Shimizu, K. Niitsu, N. Takai, and T. J. Yamaguchi, "Study of Complex Multi-Bandpass ΔΣ Modulator for I-Q Signal Generation," in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013, pp. 99-104.
T. Kuno, K. Niitsu, and K. Nakazato, "Amperometric Electrochemical Sensor Array for On-Chip Simultaneous Imaging," in Proc. International Conference on Solid State Devices and Materials (SSDM 2013), Sep. 2013, pp.846-847.
D. Hirabayashi, Y. Osawa, N. Harigai, O. Kobayashi, K. Niitsu, T. J. Yamaguchi, and N. Takai, "Phase Noise Measurement with Sigma-Delta TDC," in Proc. IEEE International Test Conference (ITC 2013) (Poster Session), Sep. 2013.
K. Niitsu, N. Harigai, D. Hirabayashi, D. Oki, M. Sakurai,O. Kobayashi, T. J. Yamaguchi, and H. Kobayashi, "Design of a Clock Jitter Reduction Circuit Using Gated Phase Blending Between Self-Delayed Clock Edges," in Proc. IEEE/ACM Asia and South Pacific Design Automation Conference (ASP-DAC 2013), Jan. 2013, pp. 103-104.
S. Uemori, M. Ishii, H. Kobayashi, Y. Doi, O. Kobayashi, T. Matsuura, K. Niitsu, Y. Arakawa, D. Hirabayashi, Y. Yano, T. Gake, N. Takai, and T. J. Yamaguchi, "Multi-bit Sigma-Delta TDC Architecture with Self-Calibration," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2012), Dec. 2012, C4L-D-7032.
G. Jin, H. Chen, C. Gao, Y. Zhang, H. Kobayashi, N. Takai, K. Niitsu, and K. Hadidi, "Digitally-Controlled Gm-C Bandpass Filter," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2012), Dec. 2012, C2L-B-7036.
Y. Kobori, Q. Zhu, M. Li, F. Zhao, Z. Nosker, S. Wu, S. N. Mohyar, M. Onozawa, H. Kobayashi, N. Takai, K. Niitsu, T. Odaguchi, I. Nakanishi, K. Nemoto, and J. Matsuda, "Single Inductor Dual Output DC-DC Converter Design with Exclusive Control," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2012), Dec. 2012, B4L-D-7021.
H. Gao,L. Xing, Y. Kobori, Z. Feng, H. Kobayashi, S. Miwa, A. Motozawa,Z. Nosker, K. Niitsu, N. Takai, T. Odaguchi, I. Nakanishi, K. Nemoto, and J. Matsuda, "DC-DC Converter with Continuous-Time Feed-Forward Sigma-Delta Modulator Control," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2012), Dec. 2012, A1L-D-7070.
Z. Nosker, Y. Kobori, H. Kobayashi, K. Niitsu, N. Takai, T. Odaguchi, I. Nakanishi, K. Nemoto, and J. Matsuda, "A Fully Integrated Low Input Voltage Self Starting Charge Pump Circuit for Boost Regulator Bootstrap Startup," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012, L04.
K. Sakuma, K. Niitsu, N. Harigai, D. Hirabayashi, N. Takai, T. J. Yamaguchi, and H. Kobayashi, "Analysis of Jitter in Delay Line for High-Accuracy On-chip Jitter Measurements," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012, P57.
Y Liu, H. Kobayashi, T. Matsuura, O. Kobayashi, N. Takai, and K. Niitsu, "Self-Calibration Technique of Cyclic ADC," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012, P56.
N. Harigai, K. Niitsu, D. Hirabayashi, M. Sakurai, Y. Osawa, T. J. Yamaguchi, and H. Kobayashi, "A Study on Design for High-Speed Operation in a Cascaded Open-Loop Time Amplifier," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012, P52.
Y. Tan, D. Oki, Y. Liu, Z. Nosker, H. Kobayashi, O. Kobayashi, T. Matsuura, A. Katayama, L. Quan, E. Li, K. Niitsu, and N. Takai, "Self-Calibration Technique of Pipeline ADC Using Cyclic Configuration," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012, P51.
K. Niitsu, T. J. Yamaguchi, M. Ishida, and H. Kobayashi, "Post-Silicon Jitter Measurements," in Proc. IEEE Asian Test Symposium (ATS 2012), Nov. 2012, pp. 258-263.
T. Yamaguchi, K. Asada, K. Niitsu, M. Abbas, S. Komatsu, H. Kobayashi, and J. Moreira, "A New Procedure for Measuring High-Accuracy Probability Density Functions," in Proc. IEEE Asian Test Symposium (ATS 2012), Nov. 2012, pp. 185-190.
K. Kato, F. Abe, K. Wakabayashi, C. Gao, T. Yamada, H. Kobayashi, O. Kobayashi, and K. Niitsu, "Two-Tone Signal Generation for Communication Application ADC Testing," in Proc. IEEE Asian Test Symposium, Nov. 2012 (ATS 2012), pp. 179-184.
Y. Kobori, L. Xing, H. Gao, M. Onozawa, S. Wu, S. N. Mohyar, Z. Nosker, H. Kobayashi, N. Takai, and K. Niitsu, "Non-Isolated Direct AC-DC Converter Design with BCM-PFC Circuit," in Proc. International Conference on Power Eingineering, Paper ID : ID78000, Oct. 2012.
K. Niitsu, N. Harigai, D. Hirabayashi, D. Oki, M. Sakurai,O. Kobayashi, T. J. Yamaguchi, and H. Kobayashi, "A Clock Jitter Reduction Circuit Using Gated Phase Blending Between Self-Delayed Clock Edges," in Proc. IEEE Symposium on VLSI Circuits (VLSIC 2012), Jun. 2012, pp. 142-143.
S Uemori, M. Ishii, H. Kobayashi, Y. Doi, O. Kobayashi, T. Matsuura, K. Niitsu, F. Abe, D. Hirabayashi, "Multi-bit Sigma-Delta TDC Architecture for Digital Signal Timing Measurement," in Proc. IEEE International Mixed-Signals, Sensors, and Systems Test Workshop (IMS3TW 2012), May 2012, pp. 67-72.
K. Kato, F. Abe, K. Wakabayashi, T. Yamada, H. Kobayashi, O. Kobayashi, and K. Niitsu, "Low-Distortion Single-Tone and Two-Tone Sinewave Generation Algorithms Using an Arbitrary Waveform Generator," in Proc. IEEE International Mixed-Signals, Sensors, and Systems Test Workshop (IMS3TW 2012), May 2012, pp. 85-90.
K. Niitsu, M. Sakurai, N. Harigai, D. Hirabayashi, T. J. Yamaguchi, and H. Kobayashi, "A Reference-Clock-Free On-Chip Timing Jitter Measurement Circuit Using a Cascaded Time Difference Amplifier in 65nm CMOS," in Proc. IEEE/ACM Asia and South Pacific Design Automation Conference (ASP-DAC 2012), Jan. 2012, pp. 553-554.
Y. Kobori, L. Xing, G. Hong, N. Okamoto, M. Ohshima, H. Kobayashi, N. Takai, and K. Niitsu, "Novel AC-DC Direct Converter Design with PFC", in Proc. International Conference on Power Electronics and Power Engineering (ICPEPE 2011), Dec. 2011, ID: TH86000.
M. Sakurai, K. Niitsu, N. Harigai, D. Hirabayashi, D. Oki, T. J. Yamaguchi, and H. Kobayashi, "A Study on Jitter Accumulation in Interleaved Phase Frequency Detectors for High-Accuracy On-Chip Jitter Measurement Circuits," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2011, P67.
Z. Nosker, Y. Kobori, H. Kobayashi, K. Niitsu, N. Takai, T. Oomori, T. Odaguchi, I. Nakanishi, K. Nemoto, and J. Matsuda, "A High Efficiency, Extended Load Range Boost Regulator Optimized for Energy Harvesting Applications," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2011, P66.
M. Sakurai, K. Niitsu, N. Harigai, D. Hirabayashi, D. Oki, T. J. Yamaguchi, and H. Kobayashi, "Analysis of Jitter Accumulation in Interleaved Phase Frequency Detectors for High-Accuracy On-Chip Jitter Measurements," in Proc. International SoC Design Conference (ISOCC 2011), Nov. 2011, pp. 146-149.
K. Niitsu, M. Sakurai, N. Harigai, T. J. Yamaguchi, and H. Kobayashi, "An On-Chip Timing Jitter Measurement Circuit Using a Self-Referenced Clock and a Cascaded Time Difference Amplifier with Duty-Cycle Compensation," in Proc. IEEE Asian Solid-State Circuits Conference (A-SSCC 2011), Nov. 2011, pp. 201-204.
Z. Nosker, Y. Kobori, H. Kobayashi, K. Niitsu, N. Takai, T. Oomori, T. Odaguchi, I. Nakanishi, K. Nemoto, and J. Matsuda, "A Small, Low Power Boost Regulator Optimized for Energy Harvesting Applications," in Proc. IEEJ International Analog VLSI Workshop (AVW 2011), Nov. 2011, ID:10026.
J. Ye, Z. Nosker, K. Wakabayashi, T. Yagi, N. Takai, K. Niitsu, K. Kato, T. Ootsuki, H. Kobayashi, O. Yamamoto, and I. Akiyama, "Architecture of High-Efficiency Digitally-Controlled Class-E Power Amplifier," in Proc. IEEJ International Analog VLSI Workshop (AVW 2011), Nov. 2011, ID:10018.
N. Harigai, K. Niitsu, D. Oki, M. Sakurai, T. J. Yamaguchi, and H. Kobayashi, "A Twistedly-Cascaded Time Difference Amplifier for High Robustness Against Process Variation," in Proc. International Conference on Solid State Devices and Materials (SSDM 2011), Sep. 2011, pp. 184-185.
T. Yamada, O. Kobayashi, K. Kato, K. Wakabayashi, H. Kobayashi, T. Matsuura, Y. Yano, T. Gake, K. Niitsu, N. Takai, and T. J. Yamaguchi, "Low-Distortion Single-Tone and Two-Tone Sinewave Generation Algorithms Using ΣΔ DAC," in Proc. IEEE International Test Conference (ITC 2011) (Poster Session), Sep. 2011, PO19.
K. Wakabayashi, T. Yamada, S. Uemori, O. Kobayashi, K. Kato, H. Kobayashi, K. Niitsu, H. Miyashita, S. Kishigami, K. Rikino, Y. Yano, and T. Gake, "Low-Distortion Single-Tone and Two-Tone Sinewave Generation Algorithms Using an Arbitrary Waveform Generator," in Proc. IEEE International Mixed-Signals, Sensors, and Systems Test Workshop (IMS3TW 2011), May 2011, pp. 33-38.
S. Uemori, T. J. Yamaguchi, S. Ito, Y. Tan, H. Kobayashi, N. Takai, K. Niitsu, and N. Ishikawa, "ADC Linearity Test Signal Generation Algorithm," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2010), Dec. 2010, pp. 44-47.
T. Ogawa, H. Kobayashi, Y. Tan, S. Ito, S. Uemori, N. Takai, K. Niitsu, T. J. Yamaguchi, T. Matsuura, and N. Ishikawa, "SAR ADC That is Configurable to Optimize Yield," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2010), Dec. 2010, pp. 374-377.
S. Ito, S. Nishimura, H. Kobayashi, S. Uemori, Y. Tan, N. Takai, T. J. Yamaguchi, and K. Niitsu, "Stochastic TDC Architecture with Self-Calibration," in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2010), Dec. 2010, pp. 1027-1030.
T Ogawa, H. Kobayashi, Y. Tan, S. Ito, S. Uemori, N. Takai, and K. Niitsu, "Reconfigurable SAR ADC for Yield Optimization," in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2010, 2P18.
K. Takatsu, K. Niitsu, T. Shidei, N. Miura, and T. Kuroda, "A 0.45V-to-2.7V Inductive-Coupling Level Shifter," in Proc. IEEE Asian Solid-State Circuits Conference (A-SSCC 2010), Nov. 2010, pp. 205-208.
K. Niitsu, V. V. Kurkarni, K. Shinmo, H. Ishikuro, and T. Kuroda, "A 14GHz AC-Coupled Clock Distribution Using Single LC-VCO and Distributed Phase Interpolators," in Proc. International Conference on Solid State Devices and Materials (SSDM 2009), Oct. 2009, pp. 82-83.
S. Saito, Y. Kohama, Y. Sugimori, Y. Hasegawa, H. Matsutani, T. Sano, K. Kasuga, Y. Yoshida, K. Niitsu, N. Miura, T. Kuroda, and H. Amano, "MuCCRA-Cube: a 3D Dynamically Reconfigurable Processor with Inductive-Coupling Link," in Proc. IEEE International Conference on Field Programmable Logic and Applications (FPL 2009), Sep. 2009, pp. 1-6.
K. Osada, M. Saen, Y. Okuma, K. Niitsu, Y. Shimazaki, Y. Sugimori, Y. Kohama, K. Kasuga, It. Nonomura, N. Irie, T. Hattori, A. Hasegawa, and T. Kuroda, "3D System Integration of Processor and Multi- Stacked SRAMs by Using Inductive-Coupling Links," in Proc. IEEE Symposium on VLSI Circuits (VLSIC 2009), Jun. 2009, pp. 256-257.
Y. Kohama, Y. Sugimori, S. Saito, Y. Hasegawa, T. Sano, K. Kasuga, Y. Yoshida, K. Niitsu, N. Miura, H. Amano, and T. Kuroda, "A Scalable 3D Processor by Homogeneous Chip Stacking with Inductive-Coupling Link," in Proc. IEEE Symposium on VLSI Circuits (VLSIC 2009), Jun. 2009, pp. 94-95.
K. Niitsu, Y. Yuxiang, H. Ishikuro, and T. Kuroda, "High Efficiency Inductive-Coupling Power Delivery With Sandwiching Thin Films of Magnetic Material," in Proc. IEEE International Magnetics Conference (INTERMAG 2009), May 2009, p. 59.
Kiichi Niitsu, "Energy-Autonomous Supply-Sensing Biosensor Platform Using CMOS Electronics and Biofuel Cells," Smart Sensors at the IoT Frontier, ISBN: 978-3-319-55344-3, Springer International Publishing, pp. 9-12, May 2017.
Kiichi Niitsu, "Wireless Power Delivery," Handbook of Power Management Circuits, ISBN: 978-9814613156, Pan Stanford, pp. 293-302, Mar. 2016.
Kiichi Niitsu and Tadahiro Kuroda, "An Inductive-Coupling Inter-Chip Link for High-Performance and Low-Power 3D System Integration," Solid-State Circuits Technologies, ISBN: 978-953-307-045-2, INTECH, pp. 281-306, Jan. 2010.
K. Niitsu, "Energy-Autonomous Supply-Sensing Biosensor Platform Using CMOS Electronics and Biofuel Cells," Smart Sensors at the IoT Frontier, ISBN: 978-3-319-55344-3, Springer International Publishing, pp. 9-12, May 2017.
K. Niitsu, "Wireless Power Delivery," Handbook of Power Management Circuits, ISBN: 978-9814613156, Pan Stanford, pp. 293-302, Mar. 2016.
K. Niitsu and T. Kuroda, "An Inductive-Coupling Inter-Chip Link for High-Performance and Low-Power 3D System Integration," Solid-State Circuits Technologies, ISBN: 978-953-307-045-2, INTECH, pp. 281-306, Jan. 2010.
Kiichi Niitsu, "Energy-autonomous biosensing platform using supply-sensing CMOS integrated sensor and biofuel cell for next-generation healthcare Internet of Things," Japanese Journal of Applied Physics: SELECTED TOPICS IN APPLIED PHYSICS, vol. 57, no. 10, 1002A5, Sep. 2018.
K. Niitsu, "Energy-autonomous biosensing platform using supply-sensing CMOS integrated sensor and biofuel cell for next-generation healthcare Internet of Things," Japanese Journal of Applied Physics: SELECTED TOPICS IN APPLIED PHYSICS, vol. 57, no. 10, 1002A5, Sep. 2018.

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