Kiichi Niitsu

发表

Demonstration of 2D Optical Imaging Using Photosystem I Photosensor Platform with 3232 CMOS Biosensor Array

Kiichi Niitsu, Taichi Sakabe, Mariko Miyachi, 2018, 2018 16th IEEE International New Circuits and Systems Conference (NEWCAS).

Architecture of High-Efficiency Digitally-Controlled Class-E Power Amplifier

Kiichi Niitsu, Nobukazu Takai, Haruo Kobayashi, 2011 .

ADC linearity test signal generation algorithm

Takahiro J. Yamaguchi, Satoshi Ito, Kiichi Niitsu, 2010, 2010 IEEE Asia Pacific Conference on Circuits and Systems.

Digitally-controlled Gm-C bandpass filter

Hao Chen, Khayrollah Hadidi, Kiichi Niitsu, 2012, 2012 IEEE Asia Pacific Conference on Circuits and Systems.

Design of gate-leakage-based timer using an amplifier-less replica-bias switching technique in 55-nm DDC CMOS

Kiichi Niitsu, Atsuki Kobayashi, Yuya Nishio, 2019, ASP-DAC.

Energy-Autonomous Supply-Sensing Biosensor Platform Using CMOS Electronics and Biofuel Cells

Kiichi Niitsu, 2017 .

A clock jitter reduction circuit using gated phase blending between self-delayed clock edges

Takahiro J. Yamaguchi, Kiichi Niitsu, Haruo Kobayashi, 2012, 2012 Symposium on VLSI Circuits (VLSIC).

Design and Analysis of Scalability in Current-Mode Analog-to-Time Converter for an Energy-Efficient and High-Resolution CMOS Biosensor Array

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2017, IEICE Trans. Electron..

Self-Calibration Techniques of Pipeline ADCs Using Cyclic Configuration

Li Quan, Yu Liu, Kiichi Niitsu, 2013 .

Finite aperture time effects in sampling circuit

Kiichi Niitsu, Shohei Shibuya, Haruo Kobayashi, 2015, 2015 IEEE 11th International Conference on ASIC (ASICON).

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

Kiichi Niitsu, Atsuki Kobayashi, Taiki Nakanishi, 2019, ASP-DAC.

Design of a clock jitter reduction circuit using gated phase blending between self-delayed clock edges

Takahiro J. Yamaguchi, Kiichi Niitsu, Haruo Kobayashi, 2013, 2013 18th Asia and South Pacific Design Automation Conference (ASP-DAC).

An on-chip timing jitter measurement circuit using a self-referenced clock and a cascaded time difference amplifier with duty-cycle compensation

Takahiro J. Yamaguchi, Kiichi Niitsu, Haruo Kobayashi, 2011, IEEE Asian Solid-State Circuits Conference 2011.

A reference-free on-chip timing jitter measurement circuit using self-referenced clock and a cascaded time difference amplifier in 65nm CMOS

Takahiro J. Yamaguchi, Kiichi Niitsu, Haruo Kobayashi, 2012, 17th Asia and South Pacific Design Automation Conference.

3-D System Integration of Processor and Multi-Stacked SRAMs Using Inductive-Coupling Link

Tadahiro Kuroda, Kenichi Osada, Kiichi Niitsu, 2010, IEEE Journal of Solid-State Circuits.

Live Demonstration: 385 × 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

Kiichi Niitsu, Ge Xu, Atsuki Kobayashi, 2018, 2018 IEEE Biomedical Circuits and Systems Conference (BioCAS).

A Blood Glucose Level Prediction System Using Machine Learning Based on Recurrent Neural Network for Hypoglycemia Prevention

Kiichi Niitsu, Atsuki Kobayashi, Kenya Hayashi, 2018, 2018 16th IEEE International New Circuits and Systems Conference (NEWCAS).

Well-Shaped Microelectrode Array Structure for High-Density CMOS Amperometric Electrochemical Sensor Array

Kiichi Niitsu, Kazuo Nakazato, Tsuyoshi Kuno, 2016, IEICE Trans. Electron..

Multi-bit sigma-delta TDC architecture with self-calibration

Takahiro J. Yamaguchi, Kiichi Niitsu, Nobukazu Takai, 2012, 2012 IEEE Asia Pacific Conference on Circuits and Systems.

Live demonstration: Current-mode analog-to-time converter for a large scale CMOS biosensor array

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2016, 2016 IEEE Biomedical Circuits and Systems Conference (BioCAS).

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

Kiichi Niitsu, Kazuo Nakazato, Matsuhiko Nishizawa, 2018, IEEE Transactions on Circuits and Systems I: Regular Papers.

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

Kiichi Niitsu, Kazuo Nakazato, Kohei Gamo, 2016, 2016 IEEE Biomedical Circuits and Systems Conference (BioCAS).

A current-mode analog-to-time converter with short-pulse output capability using local intra-cell activation for high-speed time-domain biosensor array

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2016, 2016 IEEE Nordic Circuits and Systems Conference (NORCAS).

DC-DC converter with continuous-time feed-forward Sigma-Delta modulator control

Feng Zhao, Hong Gao, Kiichi Niitsu, 2012, 2012 IEEE Asia Pacific Conference on Circuits and Systems.

60% Power Reduction in Inductive-Coupling Inter-Chip Link by Current-Sensing Technique

Tadahiro Kuroda, Hiroki Ishikuro, Kiichi Niitsu, 2007 .

Two-Tone Signal Generation for ADC Testing

Kiichi Niitsu, Haruo Kobayashi, Osamu Kobayashi, 2013, IEICE Trans. Electron..

A CMOS PWM Transceiver Using Self-Referenced Edge Detection

Takahiro J. Yamaguchi, Kiichi Niitsu, Haruo Kobayashi, 2015, IEEE Transactions on Very Large Scale Integration (VLSI) Systems.

A small, low power boost regulator optimized for energy harvesting applications

Kiichi Niitsu, Nobukazu Takai, Haruo Kobayashi, 2013 .

A 385×385μm2 0.165V 0.27nW Fully-Integrated Supply-Modulated OOK Transmitter in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens

Kiichi Niitsu, Atsuki Kobayashi, Kenya Hayashi, 2019, IEICE Trans. Electron..

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

Kiichi Niitsu, Kazuo Nakazato, Matsuhiko Nishizawa, 2015, 2015 IEEE Biomedical Circuits and Systems Conference (BioCAS).

Design and analysis of a three-dimensional millimeter-wave frequency-shift based CMOS biosensor using vertically stacked spiral inductors in LC oscillators

Kiichi Niitsu, Atsuki Kobayashi, Taiki Nakanishi, 2018, Analog Integrated Circuits and Signal Processing.

A scalable time-domain biosensor array using logarithmic cyclic time-attenuation-based TDC for high-resolution and large-scale bio-imaging

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2017, 2017 22nd Asia and South Pacific Design Automation Conference (ASP-DAC).

A New Procedure for Measuring High-Accuracy Probability Density Functions

Kunihiro Asada, Takahiro J. Yamaguchi, Kiichi Niitsu, 2012, 2012 IEEE 21st Asian Test Symposium.

An FSK Inductive-Coupling Transceiver Using 60mV 0.64fJ/bit 0.0016mm2 Load-Modulated Transmitter and LC-Oscillator-Based Receiver in 65nm CMOS for Energy-Budget-Unbalanced Application

Kiichi Niitsu, Atsuki Kobayashi, Kenya Hayashi, 2019, IEICE Trans. Electron..

Digital Auto-Tuning for Center Frequency and Q-Factor of Gm-C Band-Pass Filter

Khayrollah Hadidi, Hao Chen, Kiichi Niitsu, 2015 .

Biosensor Integrated Circuits Using CMOS Technology

Kiichi Niitsu, Kazuo Nakazato, 2017 .

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

Kiichi Niitsu, Kazuo Nakazato, Matsuhiko Nishizawa, 2016, 2016 IEEE Biomedical Circuits and Systems Conference (BioCAS).

Design and Calibration of a Small-Footprint, Low-Frequency, and Low-Power Gate Leakage Timer Using Differential Leakage Technique

Kiichi Niitsu, Atsuki Kobayashi, Yuya Nishio, 2019, IEICE Trans. Electron..

A current-integration-based CMOS amperometric sensor with 1.2 μm × 2.05 μm electroless-plated microelectrode array for high-sensitivity bacteria counting

Kiichi Niitsu, Kazuo Nakazato, Kohei Gamo, 2017, 2017 22nd Asia and South Pacific Design Automation Conference (ASP-DAC).

Sub-1-V CMOS-Based Electrophoresis Using Electroless Gold Plating for Small-Form-Factor Biomolecule Manipulation

Kiichi Niitsu, Kazuo Nakazato, Yuuki Yamaji, 2017, IEICE Trans. Electron..

An extended-gate CMOS sensor array with enzyme-immobilized microbeads for redox-potential glucose detection

Kiichi Niitsu, Kazuo Nakazato, Junko Tanaka, 2014, 2014 IEEE Biomedical Circuits and Systems Conference (BioCAS) Proceedings.

AI-Based Edge-Intelligent Hypoglycemia Prediction System Using Alternate Learning and Inference Method for Blood Glucose Level Data with Low-periodicity

Kiichi Niitsu, Tran Minh Quan, Md. Zahidul Islam, 2019, 2019 IEEE International Conference on Artificial Intelligence Circuits and Systems (AICAS).

A 40-GHz Fully-Integrated CMOS-Based Biosensor Circuit with an On-Chip Vector Network Analyzer for Circulating Tumor Cells Analysis

Kiichi Niitsu, Md. Zahidul Islam, Atsuki Kobayashi, 2019, 2019 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC).

Daisy Chain Transmitter for Power Reduction in Inductive-Coupling CMOS Link

Tadahiro Kuroda, Takayasu Sakurai, Kiichi Niitsu, 2007, IEICE Trans. Electron..

Development of Microelectrode Arrays Using Electroless Plating for CMOS-Based Direct Counting of Bacterial and HeLa Cells

Kiichi Niitsu, Kazuo Nakazato, Masaru Hori, 2015, IEEE Transactions on Biomedical Circuits and Systems.

A 65fJ/b Inter-Chip Inductive-Coupling Data Transceivers Using Charge-Recycling Technique for Low-Power Inter-Chip Communication in 3-D System Integration

Tadahiro Kuroda, Hiroki Ishikuro, Kiichi Niitsu, 2012, IEEE Transactions on Very Large Scale Integration (VLSI) Systems.

Design Methodology and Jitter Analysis of a Delay Line for High-Accuracy On-Chip Jitter Measurements

Kiichi Niitsu, Nobukazu Takai, Haruo Kobayashi, 2013 .

Multi-bit Sigma-Delta TDC Architecture with Improved Linearity

Takahiro J. Yamaguchi, Kiichi Niitsu, Nobukazu Takai, 2013, J. Electron. Test..

SAR ADC that is configurable to optimize yield

Takahiro J. Yamaguchi, Satoshi Ito, Kiichi Niitsu, 2010, 2010 IEEE Asia Pacific Conference on Circuits and Systems.

A 2.1-nW Burst-Pulse-Counting Supply Voltage Monitor for Biofuel-Cell-Combined Biosensing Systems in 180-nm CMOS

Kiichi Niitsu, Atsuki Kobayashi, Kenya Hayashi, 2019, 2019 IEEE Biomedical Circuits and Systems Conference (BioCAS).

A High Efficiency, Extended Load Range Boost Regulator Optimized Forenergy Harvesting Applications

Kiichi Niitsu, Nobukazu Takai, Haruo Kobayashi, 2012 .

MuCCRA-Cube: A 3D dynamically reconfigurable processor with inductive-coupling link

Tadahiro Kuroda, Hideharu Amano, Kiichi Niitsu, 2009, 2009 International Conference on Field Programmable Logic and Applications.

A CMOS sensor platform with 1.2 µm × 2.05 µm electroless-plated 1024 × 1024 microelectrode array for high-sensitivity rapid direct bacteria counting

Kiichi Niitsu, Kazuo Nakazato, Masaru Hori, 2014, 2014 IEEE Biomedical Circuits and Systems Conference (BioCAS) Proceedings.

A low-offset cascaded time amplifier with reconfigurable inter-stage connection

Takahiro J. Yamaguchi, Kiichi Niitsu, Haruo Kobayashi, 2014, IEICE Electron. Express.

Wireless Power Delivery

Kiichi Niitsu, 2016 .

CMOS Circuits to Measure Timing Jitter Using a Self-Referenced Clock and a Cascaded Time Difference Amplifier With Duty-Cycle Compensation

Takahiro J. Yamaguchi, Kiichi Niitsu, Haruo Kobayashi, 2012, IEEE Journal of Solid-State Circuits.

A low-power inverter-based CMOS level-crossing analog-to-digital converter for low-frequency biosignal sensing

Kiichi Niitsu, Kazuo Nakazato, Suiki Tanaka, 2016 .

Two-Tone Signal Generation for Communication Application ADC Testing

Kiichi Niitsu, Haruo Kobayashi, Osamu Kobayashi, 2012, 2012 IEEE 21st Asian Test Symposium.

An inductive-coupling link for 3D integration of a 90nm CMOS processor and a 65nm CMOS SRAM

Tadahiro Kuroda, Kenichi Osada, Kiichi Niitsu, 2009, 2009 IEEE International Solid-State Circuits Conference - Digest of Technical Papers.

Modeling and Experimental Verification of Misalignment Tolerance in Inductive-Coupling Inter-Chip Link for Low-Power 3-D System Integration

Tadahiro Kuroda, Hiroki Ishikuro, Kenichi Osada, 2010, IEEE Transactions on Very Large Scale Integration (VLSI) Systems.

Analysis and Techniques for Mitigating Interference From Power/Signal Lines and to SRAM Circuits in CMOS Inductive-Coupling Link for Low-Power 3-D System Integration

Tadahiro Kuroda, Hiroki Ishikuro, Kenichi Osada, 2011, IEEE Transactions on Very Large Scale Integration (VLSI) Systems.

Low-Distortion Sinewave Generation Method Using Arbitrary Waveform Generator

Kiichi Niitsu, Haruo Kobayashi, Osamu Kobayashi, 2012, J. Electron. Test..

Finite Aperture Time Effects in Sampling Circuit (AD/DA, PLL)

Asad A. Abidi, Kiichi Niitsu, Miho Arai, 2011 .

Post-Silicon Jitter Measurements

Takahiro J. Yamaguchi, Kiichi Niitsu, Haruo Kobayashi, 2012, 2012 IEEE 21st Asian Test Symposium.

Single inductor dual output DC-DC converter design with exclusive control

Feng Zhao, Shu Wu, Kiichi Niitsu, 2012, 2012 IEEE Asia Pacific Conference on Circuits and Systems.

A 65-nm CMOS 1.4-nW Self-Controlled Dual-Oscillator-Based Supply Voltage Monitor for Biofuel-Cell-Combined Biosensing Systems

Kiichi Niitsu, Atsuki Kobayashi, Kenya Hayashi, 2019, 2019 IEEE International Symposium on Circuits and Systems (ISCAS).

3D system integration of processor and multi-stacked SRAMs by using inductive-coupling links

Tadahiro Kuroda, Kenichi Osada, Kiichi Niitsu, 2009, 2009 Symposium on VLSI Circuits.

Phase noise measurement techniques using delta-sigma TDC

Kiichi Niitsu, Haruo Kobayashi, Osamu Kobayashi, 2014, 19th Annual International Mixed-Signals, Sensors, and Systems Test Workshop Proceedings.

A scalable 3D processor by homogeneous chip stacking with inductive-coupling link

Tadahiro Kuroda, Hideharu Amano, Kiichi Niitsu, 2009, 2009 Symposium on VLSI Circuits.

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

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2017, 2017 IEEE Biomedical Circuits and Systems Conference (BioCAS).

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

Kiichi Niitsu, Kazuo Nakazato, Matsuhiko Nishizawa, 2017, 2017 22nd Asia and South Pacific Design Automation Conference (ASP-DAC).

Design of a Self-Controlled Dual-Oscillator-Based Supply Voltage Monitor for Biofuel-Cell-Combined Biosensing Systems in 65-nm CMOS and 55-nm DDC CMOS

Ge Xu, Kiichi Niitsu, Atsuki Kobayashi, 2019, IEEE Transactions on Biomedical Circuits and Systems.

Design for Testability That Reduces Linearity Testing Time of SAR ADCs

Takahiro J. Yamaguchi, Satoshi Ito, Kiichi Niitsu, 2011, IEICE Trans. Electron..

Stochastic TDC architecture with self-calibration

Takahiro J. Yamaguchi, Satoshi Ito, Kiichi Niitsu, 2010, 2010 IEEE Asia Pacific Conference on Circuits and Systems.

Design methodology for determining the number of stages in a cascaded time amplifier to minimize area consumption

Kiichi Niitsu, Haruo Kobayashi, Naohiro Harigai, 2013, IEICE Electron. Express.

A Constant-Power Inductive-Coupling Transmitter Using Auxiliary Driving Technique in 65nm SOTB CMOS for Low-Power Supply-Sensing Biosensing Platform toward Healthcare IoTs

Kiichi Niitsu, Atsuki Kobayashi, Yuya Nishio, 2018, 2018 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS).

Analysis of jitter accumulation in interleaved phase frequency detectors for high-accuracy on-chip jitter measurements

Takahiro J. Yamaguchi, Kiichi Niitsu, Haruo Kobayashi, 2011, 2011 International SoC Design Conference.

A BER-Modulated Inductive-Coupling Transceiver Using Dynamic Intermediate Interference Control Technique for Low-Power Communication

Kiichi Niitsu, Ge Xu, Atsuki Kobayashi, 2018, 2018 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS).

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

Kiichi Niitsu, Atsuki Kobayashi, Kei Ikeda, 2017, 2017 24th IEEE International Conference on Electronics, Circuits and Systems (ICECS).

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

Kiichi Niitsu, Kazuo Nakazato, Mitsuo Sato, 2019, IEEE Transactions on Biomedical Circuits and Systems.

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

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2018, 2018 IEEE Custom Integrated Circuits Conference (CICC).

Design of an Energy-Autonomous Supply-Sensing Biosensor Platform Using Biofuel Cells and Human-Body-Communication Transmitter

Kiichi Niitsu, Atsuki Kobayashi, Maya Matsunaga, 2018, 2018 IEEE Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics (PrimeAsia).

Analysis on a Cascaded Structure in Open-Loop Time Amplifier for High-Speed Operation

Kiichi Niitsu, Haruo Kobayashi, Takahiro Yamaguchi, 2013 .

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

Kiichi Niitsu, Kazuo Nakazato, Matsuhiko Nishizawa, 2016, 2016 21st Asia and South Pacific Design Automation Conference (ASP-DAC).

Noise-immune current-integration-based CMOS amperometric sensor platform with 1.2 μm × 2.05 μm electroless-plated microelectrode array for robust bacteria counting

Kiichi Niitsu, Kazuo Nakazato, Kohei Gamo, 2015, 2015 IEEE Biomedical Circuits and Systems Conference (BioCAS).

A 28μm2, 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

Kiichi Niitsu, Atsuki Kobayashi, Yuya Nishio, 2017, 2017 24th IEEE International Conference on Electronics, Circuits and Systems (ICECS).

Charge-conserved analog-to-time converter for a large-scale CMOS biosensor array

Kiichi Niitsu, Kazuo Nakazato, Masayuki Takihi, 2014, 2014 IEEE International Symposium on Circuits and Systems (ISCAS).

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

Kiichi Niitsu, Ge Xu, Atsuki Kobayashi, 2019, ASP-DAC.

An Inductive-Coupling Inter-Chip Link for High-Performance and Low-Power 3D System Integration

Tadahiro Kuroda, Kiichi Niitsu, 2010 .

A 14-GHz AC-Coupled Clock Distribution Scheme With Phase Averaging Technique Using Single LC-VCO and Distributed Phase Interpolators

Tadahiro Kuroda, Hiroki Ishikuro, Kiichi Niitsu, 2011, IEEE Transactions on Very Large Scale Integration (VLSI) Systems.

Design and Experimental Verification of a 0.19 V 53 μW 65 nm CMOS Integrated Supply-Sensing Sensor With a Supply-Insensitive Temperature Sensor and an Inductive-Coupling Transmitter for a Self-Powered Bio-sensing System Using a Biofuel Cell

Kiichi Niitsu, Kazuo Nakazato, Matsuhiko Nishizawa, 2017, IEEE Transactions on Biomedical Circuits and Systems.

A Current-Integration-Based CMOS Amperometric Sensor with 1024 × 1024 Bacteria-Sized Microelectrode Array for High-Sensitivity Bacteria Counting

Kiichi Niitsu, Kazuo Nakazato, Kohei Gamo, 2017, IEICE Trans. Electron..

A 0.45V-to-2.7V inductive-coupling level shifter

Tadahiro Kuroda, Kiichi Niitsu, Noriyuki Miura, 2010, 2010 IEEE Asian Solid-State Circuits Conference.

Application of magnetic arrangement of microbeads for CMOS biosensor array sensitivity

Satoshi Fujimoto, Kiichi Niitsu, Kazuo Nakazato, 2017, 2017 IEEE Biomedical Circuits and Systems Conference (BioCAS).

Three-dimensional millimeter-wave frequency-shift-based CMOS biosensor using vertically stacked LC oscillators

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2017, 2017 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC).

Design and theoretical analysis of a clock jitter reduction circuit using gated phase blending between self-delayed clock edges

Kiichi Niitsu, Haruo Kobayashi, Takahiro Yamaguchi, 2019, IEICE Electron. Express.

2D optical imaging using photosystem I photosensor platform with 32x32 CMOS biosensor array

Kiichi Niitsu, Taichi Sakabe, Mariko Miyachi, 2019, ASP-DAC.

A Feed-Forward Time Amplifier Using a Phase Detector and Variable Delay Lines

Takahiro J. Yamaguchi, Kiichi Niitsu, Haruo Kobayashi, 2013, IEICE Trans. Electron..

A low-voltage CMOS electrophoresis IC using electroless gold plating for small-form-factor biomolecule manipulation

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2019, ASP-DAC.

A 385μm × 385μm 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

Kiichi Niitsu, Ge Xu, Atsuki Kobayashi, 2018, 2018 IEEE Biomedical Circuits and Systems Conference (BioCAS).

A 6.1-nA Fully Integrated CMOS Supply Modulated OOK Transmitter in 55-nm DDC CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens

Kiichi Niitsu, Atsuki Kobayashi, Kenya Hayashi, 2018, IEEE Transactions on Circuits and Systems II: Express Briefs.

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

Kiichi Niitsu, Kazuo Nakazato, Masaru Hori, 2014, 2014 IEEE Biomedical Circuits and Systems Conference (BioCAS) Proceedings.

Phase Noise Measurement and Testing with Delta-Sigma TDC

Kiichi Niitsu, Nobukazu Takai, Haruo Kobayashi, 2015 .

An Analytical Study on Jitter Accumulation in Interleaved Phase Frequency Detectors for High-Accuracy On-Chip Jitter Measurements

Kiichi Niitsu, Haruo Kobayashi, Takahiro Yamaguchi, 2013 .

Live demonstration: An extended-gate CMOS sensor array with enzyme-immobilized microbeads for redox-potential glucose detection

Kiichi Niitsu, Kazuo Nakazato, Junko Tanaka, 2014, 2014 IEEE Biomedical Circuits and Systems Conference (BioCAS) Proceedings.

A 4.8mW 22nm CMOS Fully-Integrated 60-GHz $3\times 3\times 2$ 3D Frequency-Shift Biosensor Array Using Vertically-Stacked LC Oscillators

Kiichi Niitsu, Guowei Chen, Akiyoshi Tanaka, 2021, 2021 28th IEEE International Conference on Electronics, Circuits, and Systems (ICECS).

A 0.5 mm2 0.31 V/0.39 V 28 nW/144 nW 65 nm CMOS Solar Cell-Powered Biofuel Cell-Input Biosensing System with PIM/PDM LED Driving for Stand-Alone RF-Less Continuous Glucose Monitoring Contact Lens

Kiichi Niitsu, Tran Minh Quan, Takuya Tsujimura, 2021, ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference (ESSCIRC).

A 0.2V 0.97nW 0.011mm2 Fully-Passive mHBC Tag Using Intermediate Interference Modulation in 65nm CMOS

Kiichi Niitsu, Guowei Chen, Akiyoshi Tanaka, 2021, 2021 28th IEEE International Conference on Electronics, Circuits, and Systems (ICECS).

Theoretical analysis and simulation study of low-power CMOS electrochemical impedance spectroscopy biosensor in 55 nm deeply depleted channel technology for cell-state monitoring

Kiichi Niitsu, Kazuo Nakazato, Keisuke Kayano, 2018 .

Low-Distortion Single-Tone and Two-Tone Sinewave Generation Using Σ∆ DAC

Kiichi Niitsu, Nobukazu Takai, Haruo Kobayashi, 2011 .

Low-Distortion Single-Tone and Two-Tone Sinewave Generation Algorithms Using an Arbitrary Waveform Generator

Kiichi Niitsu, Kunihito Rikino, Haruo Kobayashi, 2011, 2011 IEEE 17th International Mixed-Signals, Sensors and Systems Test Workshop.

Enhancement in open-circuit voltage of implantable CMOS-compatible glucose fuel cell by improving the anodic catalyst

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2017 .

Amperometric electrochemical sensor array for on-chip simultaneous imaging

Kiichi Niitsu, Kazuo Nakazato, Tsuyoshi Kuno, 2014 .

Design trade-off between spatial resolution and power consumption in CMOS biosensor circuit based on millimeter-wave LC oscillator array

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2018 .

Analysis and experimental verification of DNA single-base polymerization detection using CMOS FET-based redox potential sensor array

Kiichi Niitsu, Kazuo Nakazato, Hiroki Ishihara, 2015 .

A 40 GHz fully integrated circuit with a vector network analyzer and a coplanar-line-based detection area for circulating tumor cell analysis using 65 nm CMOS technology

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2018 .

A 33% Improvement in Efficiency of Wireless Inter-Chip Power Delivery by Thin Film Magnetic Material for Three-Dimensional System Integration

Tadahiro Kuroda, Hiroki Ishikuro, Kiichi Niitsu, 2009 .

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

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2017 .

60% Power Reduction in Inductive-Coupling Inter-Chip Link by Current-Sensing Technique

Tadahiro Kuroda, Hiroki Ishikuro, Kiichi Niitsu, 2006 .

Design and experimental demonstration of low-power CMOS magnetic cell manipulation platform using charge recycling technique

Kiichi Niitsu, Kazuo Nakazato, Kohei Yoshida, 2016 .

Design and analysis of a three-dimensional millimeter-wave frequency-shift based CMOS biosensor using vertically stacked spiral inductors in LC oscillators

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2018, Analog Integrated Circuits and Signal Processing.

Design and experimental verification of CMOS magnetic-based microbead detection using an asynchronous intra-chip inductive-coupling transceiver

Kiichi Niitsu, Kazuo Nakazato, Kohei Yoshida, 2017 .

Misalignment Tolerance in Inductive-Coupling Inter-Chip Link for 3D System Integration

Tadahiro Kuroda, Hiroki Ishikuro, Kenichi Osada, 2008 .

Yield and open-circuit-voltage enhancement of 0.36 mm2 solid-state CMOS-compatible glucose fuel cells by using repeated separator coating

Kiichi Niitsu, Atsuki Kobayashi, Kenya Hayashi, 2019, Japanese Journal of Applied Physics.

Design and experimental verification of low-voltage two-dimensional CMOS electrophoresis platform with 32 × 32 sample/hold cell array

Kiichi Niitsu, Kazuo Nakazato, Yuuki Yamaji, 2016 .

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

Kiichi Niitsu, Kazuo Nakazato, Kei Ikeda, 2017 .

Wafer-scale development and experimental verification of 0.36 mm2228 mV open-circuit-voltage solid-state CMOS-compatible glucose fuel cell

Kiichi Niitsu, Kazuo Nakazato, Atsuki Kobayashi, 2018 .

Design, theoretical analysis, and experimental verification of a CMOS current integrator with 1.2 × 2.05 µm2 microelectrode array for high-sensitivity bacterial counting

Kiichi Niitsu, Kazuo Nakazato, Kohei Gamo, 2016 .