Exposure Time Control Method for Higher Intermediate Frequency in Optical Heterodyne Imaging and Its Application to Electric-Field Imaging Based on Electro-Optic Effect.

[BibT_eX]

[DOI]

Kiyotaka Sasagawa

Ryoma Okada

Sensors, February, 2024

Effects of Excitation Light Polarization with FrontLight Structure on Lensless Fluorescence Imaging.

[BibT_eX]

[DOI]

Proceedings of the IEEE Biomedical Circuits and Systems Conference, 2024

2023

Engineering a data processing pipeline for an ultra-lightweight lensless fluorescence imaging device with neuronal-cluster resolution.

[BibT_eX]

[DOI]

Zihao Yu

Mark Christian Guinto

Artif. Life Robotics, August, 2023

Thin and Scalable Hybrid Emission Filter via Plasma Etching for Low-Invasive Fluorescence Detection.

[BibT_eX]

[DOI]

Sensors, April, 2023

Front-light Structure for a Lensless Fluorescence Imaging Device with a Hybrid Emission Filter.

[BibT_eX]

[DOI]

Proceedings of the IEEE Biomedical Circuits and Systems Conference, 2023

2022

Precise Temporal Control of Interferential Neural Stimulation via Phase Modulation.

[BibT_eX]

[DOI]

IEEE Trans. Biomed. Eng., 2022

Clear Fundus Images Through High-Speed Tracking Using Glare-Free IR Color Technology.

[BibT_eX]

[DOI]

J. Robotics Mechatronics, 2022

Mouse Brain Imaging Using a Self-Reset CMOS Image Sensor over 70-dB SNR.

[BibT_eX]

[DOI]

Kiyotaka Sasagawa

Pakpuwadon Thanet

Mark Christian Guinto

Proceedings of the 65th IEEE International Midwest Symposium on Circuits and Systems, 2022

Development of Compact Readout Device for Neural Observation System using Fluorescence Imaging and Fast-scan Cyclic Voltammetry.

[BibT_eX]

[DOI]

Ronnakorn Siwadamrongpong

Proceedings of the 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society, 2022

2021

Monitoring Neuronal Dynamics in the Ventral Tegmental Area Using an Implantable Microimaging Device With Microdialysis System.

[BibT_eX]

[DOI]

IEEE Access, 2021

Micro-LED Array-Based Photo-Stimulation Devices for Optogenetics in Rat and Macaque Monkey Brains.

[BibT_eX]

[DOI]

Yasumi Ohta

Mark Christian Guinto

IEEE Access, 2021

Advanced Multi-NIR Spectral Image Sensor with Optimized Vision Sensing System and Its Impact on Innovative Applications.

[BibT_eX]

[DOI]

Proceedings of the 2021 Symposium on VLSI Circuits, Kyoto, Japan, June 13-19, 2021, 2021

Design of an Artificial Tongue Driven by Shape Memory Alloy Fibers.

[BibT_eX]

[DOI]

Proceedings of the 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society, 2021

Implantable CMOS image sensor with a neural amplifier for simultaneous recording of optical and electrophysiological signals.

[BibT_eX]

[DOI]

Proceedings of the IEEE Biomedical Circuits and Systems Conference, BioCAS 2021, 2021

2020

CMOS 256-Pixel/480-Pixel Photovoltaic-Powered Subretinal Prosthetic Chips With Wide Image Dynamic Range and Bi/Four-Directional Sharing Electrodes and Their Ex Vivo Experimental Validations With Mice.

[BibT_eX]

[DOI]

IEEE Trans. Circuits Syst., 2020

Needle-Type Imager Sensor With Band-Pass Composite Emission Filter and Parallel Fiber-Coupled Laser Excitation.

[BibT_eX]

[DOI]

IEEE Trans. Circuits Syst. I Fundam. Theory Appl., 2020

Improved Charge Pump Design and Ex Vivo Experimental Validation of CMOS 256-Pixel Photovoltaic-Powered Subretinal Prosthetic Chip.

[BibT_eX]

[DOI]

IEEE Trans. Biomed. Eng., 2020

Guest Editorial: Special Issue on Selected Papers From IEEE BioCAS 2019.

[BibT_eX]

[DOI]

Jun Ohta

Benoit Gosselin

Takashi Tokuda

IEEE Trans. Biomed. Circuits Syst., 2020

Monitoring Neural Activities in the VTA in Response to Nicotine Intake Using a Novel Implantable Microimaging Device.

[BibT_eX]

[DOI]

IEEE Access, 2020

Miniaturized CMOS imaging device for implantable applications.

[BibT_eX]

[DOI]

Proceedings of the 2020 International Symposium on VLSI Design, Automation and Test, 2020

2019

A CMOS 256-Pixel Self-Photovoltaics-Powered Subretinal Prosthetic Chip with Wide Image Dynamic Range and Shared Electrodes and Its In Vitro Experimental Results on Rd1 Mice.

[BibT_eX]

[DOI]

Proceedings of the 62nd IEEE International Midwest Symposium on Circuits and Systems, 2019

A Thin Composite Emission Filter and Fiber Coupled Laser Excitation for Implantable Fluorescence Imager Application.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Symposium on Circuits and Systems, 2019

Multispectral Near-infrared Imaging Technologies for Nonmydriatic Fundus Camera.

[BibT_eX]

[DOI]

Proceedings of the 2019 IEEE Biomedical Circuits and Systems Conference, 2019

Live Demonstration: Lensless Highly Sensitive Fluorescence Imaging.

[BibT_eX]

[DOI]

Proceedings of the 2019 IEEE Biomedical Circuits and Systems Conference, 2019

2018

Compact Lensless Fluorescence Counting System for Single Molecular Assay.

[BibT_eX]

[DOI]

IEEE Trans. Biomed. Circuits Syst., 2018

A 17-bit 104-dB-DR High-Precision Low-Power CMOS Fluorescence Biosensor With Extended Counting ADC and Noise Cancellation.

[BibT_eX]

[DOI]

Mehdi Noormohammadi Khiarak

Proceedings of the 16th IEEE International New Circuits and Systems Conference, 2018

Live Demonstration: IoT micronode with optical ID transmission capability operated by optical energy harvesting.

[BibT_eX]

[DOI]

Takashi Tokuda

Wuthibenjaphonchai Nattakarn

Proceedings of the IEEE International Symposium on Circuits and Systems, 2018

Active Control of μLED Arrays for Optogenetic Stimulation.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Symposium on Circuits and Systems, 2018

An Energy-Efficient CMOS Biophotometry Sensor With Incremental DT-∑Δ ADC Conversion.

[BibT_eX]

[DOI]

Mehdi Noormohammadi Khiarak

Proceedings of the IEEE International Symposium on Circuits and Systems, 2018

Live Demonstration: An Energy-Efficient CMOS Biophotometry Sensor Interface.

[BibT_eX]

[DOI]

Mehdi Noormohammadi Khiarak

Proceedings of the IEEE International Symposium on Circuits and Systems, 2018

Excitation and Emission Filters for Implantable Fluorescence Imaging Devices by Laser Lift-Off Process.

[BibT_eX]

[DOI]

Proceedings of the 2018 IEEE Biomedical Circuits and Systems Conference, 2018

Battery-Free. Sticker-Like, Device for Health Monitoring, Operated by Optical Power Transfer.

[BibT_eX]

[DOI]

Wuthibenjaphonchai Nattakarn

Proceedings of the 2018 IEEE Biomedical Circuits and Systems Conference, 2018

2017

Guest Editorial - Special Issue on Selected Papers From IEEE BioCAS 2016.

[BibT_eX]

[DOI]

Manuel Delgado-Restituto

Pedram Mohseni

Jun Ohta

IEEE Trans. Biomed. Circuits Syst., 2017

Implantable Microimaging Device for Observing Brain Activities of Rodents.

[BibT_eX]

[DOI]

Proc. IEEE, 2017

Stimulator Design of Retinal Prosthesis.

[BibT_eX]

[DOI]

IEICE Trans. Electron., 2017

A high-precision CMOS biophotometry sensor with noise cancellation and two-step A/D conversion.

[BibT_eX]

[DOI]

Mehdi Noormohammadi Khiarak

Proceedings of the 15th IEEE International New Circuits and Systems Conference, 2017

CMOS-based opto-electric neural interface devices for optogenetics.

[BibT_eX]

[DOI]

Proceedings of the IEEE 60th International Midwest Symposium on Circuits and Systems, 2017

Optical sensor and interface technologies for implantable biomedical devices.

[BibT_eX]

[DOI]

Jun Ohta

Proceedings of the 7th IEEE International Workshop on Advances in Sensors and Interfaces, 2017

Parylene-based flexible imaging device for physiological measurement of rodent brain.

[BibT_eX]

[DOI]

Proceedings of the 2017 IEEE SENSORS, Glasgow, United Kingdom, October 29, 2017

Fluorescence imaging device with an ultra-thin micro-LED.

[BibT_eX]

[DOI]

Proceedings of the IEEE Biomedical Circuits and Systems Conference, 2017

Fabrication and in vivo demonstration of microchip-embedded smart electrode device for neural stimulation in retinal prosthesis.

[BibT_eX]

[DOI]

Proceedings of the IEEE Biomedical Circuits and Systems Conference, 2017

Smart electrode - toward a retinal stimulator with the large number of electrodes.

[BibT_eX]

[DOI]

Jun Ohta

Proceedings of the 22nd Asia and South Pacific Design Automation Conference, 2017

Emerging technologies for biomedical applications: Artificial vision systems and brain machine interface.

[BibT_eX]

[DOI]

Napoleon Torres-Martinez

Proceedings of the 22nd Asia and South Pacific Design Automation Conference, 2017

2016

CMOS-Based Optoelectronic On-Chip Neural Interface Device.

[BibT_eX]

[DOI]

IEICE Trans. Electron., 2016

In Vitro Long-Term Performance Evaluation and Improvement in the Response Time of CMOS-Based Implantable Glucose Sensors.

[BibT_eX]

[DOI]

IEEE Des. Test, 2016

A Multichannel Power-Supply-Modulated Microstimulator With Energy Recycling.

[BibT_eX]

[DOI]

IEEE Des. Test, 2016

Features of retinal prosthesis using suprachoroidal transretinal stimulation from an electrical circuit perspective.

[BibT_eX]

[DOI]

Proceedings of the 2016 IEEE Symposium on VLSI Circuits, 2016

Neural stimulators for retinal prosthesis embedded with CMOS microchips.

[BibT_eX]

[DOI]

Proceedings of the IEEE 59th International Midwest Symposium on Circuits and Systems, 2016

On-chip fluorescence detection system with high-density microchamber array based on CMOS image sensor.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Symposium on Circuits and Systems, 2016

CMOS-based opto-electronic neural interface devices for optogenetics.

[BibT_eX]

[DOI]

Proceedings of the 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2016

Compact lensless digital counting system for fluorescent micro-reaction-chamber array.

[BibT_eX]

[DOI]

Proceedings of the IEEE Biomedical Circuits and Systems Conference, 2016

Hemodynamic imaging using an implantable self-reset image sensor.

[BibT_eX]

[DOI]

Proceedings of the IEEE Biomedical Circuits and Systems Conference, 2016

2015

Fabrication and functional demonstration of a smart electrode with a built-in CMOS microchip for neural stimulation of a retinal prosthesis.

[BibT_eX]

[DOI]

Proceedings of the 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2015

CMOS-based on-chip neural interface devices for optogenetics.

[BibT_eX]

[DOI]

Proceedings of the IEEE Biomedical Circuits and Systems Conference, 2015

High coupling efficiency contact imaging system having micro light pipe array for a digital enzyme-linked immunosorbent assay.

[BibT_eX]

[DOI]

Proceedings of the IEEE Biomedical Circuits and Systems Conference, 2015

2014

An implantable green fluorescence imaging device using absorption filters with high excitation light rejection ratio.

[BibT_eX]

[DOI]

Proceedings of the IEEE Biomedical Circuits and Systems Conference, 2014

An implantable image sensor with self-reset function for brain imaging.

[BibT_eX]

[DOI]

Proceedings of the IEEE Biomedical Circuits and Systems Conference, 2014

Demonstration of implantable CMOS image sensors for functional brain imaging.

[BibT_eX]

[DOI]

Proceedings of the IEEE Biomedical Circuits and Systems Conference, 2014

2013

A CMOS microchip-based retinal prosthetic device for large numbers of stimulation in wide area.

[BibT_eX]

[DOI]

Proceedings of the 2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), 2013

An in vitro demonstration of CMOS-based optoelectronic neural interface device for optogenetics.

[BibT_eX]

[DOI]

Proceedings of the 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2013

Implantable image sensor based on intra-brain image transmission.

[BibT_eX]

[DOI]

Proceedings of the 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2013

2012

Proposal and evaluation of intra-body sensing via sheet medium.

[BibT_eX]

[DOI]

Proceedings of the Ninth International Conference on Networked Sensing, 2012

A CMOS-based on-chip neural interface device equipped with integrated LED array for optogenetics.

[BibT_eX]

[DOI]

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2012

Baseband signal transmission experiment for intra-brain communication with implantable image sensor.

[BibT_eX]

[DOI]

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2012

Image signal transmission through brain by an implantable micro-imager.

[BibT_eX]

[DOI]

Proceedings of the 2012 IEEE Biomedical Circuits and Systems Conference, 2012

A micro imaging device for measuring neural actvities in the mouse deep brain with minimal invasiveness.

[BibT_eX]

[DOI]

Proceedings of the 2012 IEEE Biomedical Circuits and Systems Conference, 2012

2011

Artificial Retina IC.

[BibT_eX]

[DOI]

Jun Ohta

Proceedings of the Bio-Medical CMOS ICs, 2011

CMOS Imaging Devices for Biomedical Applications.

[BibT_eX]

[DOI]

IEICE Trans. Commun., 2011

Micro CMOS image sensor for multi-area imaging.

[BibT_eX]

[DOI]

Proceedings of the IEEE/IFIP 19th International Conference on VLSI and System-on-Chip, 2011

Fabrication of a flexible neural interface device with CMOS-based smart electrodes.

[BibT_eX]

[DOI]

Proceedings of the IEEE/IFIP 19th International Conference on VLSI and System-on-Chip, 2011

Wireless sensor systems: Solution & technology.

[BibT_eX]

[DOI]

Pascal Urard

Jun Ohta

Proceedings of the IEEE International Solid-State Circuits Conference, 2011

CMOS-based smart-electrode-type retinal stimulator with bullet-shaped bulk Pt electrodes.

[BibT_eX]

[DOI]

Proceedings of the 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011

Wireless intra-brain communication for image transmission through mouse brain.

[BibT_eX]

[DOI]

Proceedings of the 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011

2010

Development and in vivo Demonstration of CMOS-Based Multichip Retinal Stimulator With Simultaneous Multisite Stimulation Capability.

[BibT_eX]

[DOI]

IEEE Trans. Biomed. Circuits Syst., 2010

High-speed image sensor technologies.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Solid-State Circuits Conference, 2010

Circuits for portable medical electronic systems.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Solid-State Circuits Conference, 2010

2009

Polarization-Analyzing CMOS Image Sensor With Monolithically Embedded Polarizer for Microchemistry Systems.

[BibT_eX]

[DOI]

IEEE Trans. Biomed. Circuits Syst., 2009

Implantable CMOS Biomedical Devices.

[BibT_eX]

[DOI]

Sensors, 2009

Polarization-analyzing CMOS Image Sensor using Monolithically Embedded Polarizer for Microchemistry Systems.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2009), 2009

CMOS-based flexible multi-site retinal stimulator toward retinal prosthesis technology.

[BibT_eX]

[DOI]

Proceedings of the IEEE Custom Integrated Circuits Conference, 2009

2008

A visual prosthesis with 100 electrodes featuring wireless signals and wireless power transmission.

[BibT_eX]

[DOI]

IEICE Electron. Express, 2008

A 3.6pW/frame·pixel 1.35V PWM CMOS Imager with Dynamic Pixel Readout and no Static Bias Current.

[BibT_eX]

[DOI]

Proceedings of the 2008 IEEE International Solid-State Circuits Conference, 2008

Polarization analyzing CMOS sensor for microchamber/microfluidic system based on image sensor technology.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2008), 2008

CMOS LSI-based multi-chip flexible retinal prosthesis device for subretinal implantation.

[BibT_eX]

[DOI]

Proceedings of the IEEE 2008 Custom Integrated Circuits Conference, 2008

2007

Preliminary Demonstration of 1.0 V CMOS Imager with Semi-Pixel-Level ADC Based on Pulse-Width-Modulation Pixel Readout.

[BibT_eX]

[DOI]

IEICE Trans. Electron., 2007

A low-voltage PWM CMOS imager with small pixel size using an in-pixel gate-common comparator.

[BibT_eX]

[DOI]

IEICE Electron. Express, 2007

A multi-microchip retinal stimulator for in vitro / in vivo experiments.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2007), 2007

Integration of CMOS and MEMS Technologies in the Development of a Neural Imaging and Interface Device: Showcase of an Emerging Bioimaging Technique.

[BibT_eX]

[DOI]

Proceedings of the IEEE 2007 Custom Integrated Circuits Conference, 2007

2006

Pulse frequency modulation based CMOS image sensor for subretinal stimulation.

[BibT_eX]

[DOI]

IEEE Trans. Circuits Syst. II Express Briefs, 2006

An optical and potential dual-image CMOS sensor for on-chip neural and DNA imaging applications.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2006), 2006

Toward 1000-ch electrode array based on distributed microchip architecture for retinal prosthesis.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2006), 2006

A multi-chip-architecture based flexible stimulation device for retinal prosthesis with a flip-chip packaging technique.

[BibT_eX]

[DOI]

Proceedings of the 28th International Conference of the IEEE Engineering in Medicine and Biology Society, 2006

A New Neural Imaging Approach Using a CMOS Imaging Device.

[BibT_eX]

[DOI]

Proceedings of the 28th International Conference of the IEEE Engineering in Medicine and Biology Society, 2006

Development of a CMOS Imaging Device for Functional Imaging Inside the Mouse Brain.

[BibT_eX]

[DOI]

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems 2006, 2006

2005

Pulse modulation CMOS image sensor for bio-fluorescence imaging applications.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2005), 2005

Retinal prosthesis device based on pulse-frequency-modulation vision chip.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2005), 2005

2004

A high-sensitive digital photosensor using MOS interface-trap charge pumping.

[BibT_eX]

[DOI]

IEICE Electron. Express, 2004

Improvement of saturation characteristics of a frequency-demodulation CMOS image sensor.

[BibT_eX]

[DOI]

Proceedings of the 2004 Conference on Asia South Pacific Design Automation: Electronic Design and Solution Fair 2004, 2004

A retinal prosthetic device using a pulse-frequency-modulation CMOS image sensor.

[BibT_eX]

[DOI]

Proceedings of the 2004 Conference on Asia South Pacific Design Automation: Electronic Design and Solution Fair 2004, 2004

An image-sensor-based optical receiver fabricated in a standard 0.35-µm CMOS technology for free-space optical communications.

[BibT_eX]

[DOI]

Proceedings of the 2004 Conference on Asia South Pacific Design Automation: Electronic Design and Solution Fair 2004, 2004

2000

Pulse-Modulated Vision Chips with Versatile-Interconnected Pixels.

[BibT_eX]

[DOI]

Proceedings of the Parallel and Distributed Processing, 2000

1998

Experimental Studies on an Applet-based Document Viewer for Multilingual WWW Documents - Functional Extension of and Lessons Learned from Multilingual HTML.

[BibT_eX]

[DOI]

Proceedings of the Research and Advanced Technology for Digital Libraries, 1998

1996

Computer vision for computer games.