Takashi Tokuda

69 papers C 11Journal 18Unranked 40

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	140-400-mV Input Switched-Capacitor Converter for Miniaturized Photovoltaic Energy Harvesting. IEEE Access Reyhan Ramadhan, Masato Saito, Yasufumi Yokoshiki, Takashi Tokuda
2025	J	`jnl`	RISC-V compatible CPU for intermittently driven circuit. IEICE Electron. Express Yasufumi Yokoshiki, Takashi Tokuda
2025	J	`jnl`	Wide-operating-point DC-DC converter for sub-microwatt photovoltaic power conversion in biomedical implants. IEICE Electron. Express Reyhan Ramadhan, Masato Saito, Yasufumi Yokoshiki, Takashi Tokuda
2023	—	`conf`	Autonomous Floor Navigation Control of Mobile Robot Using Elevator Button Recognition with Deep Learning. SICE Jin Yien Lee, Takashi Tokuda, Kazuya Sato
2023	—	`conf`	CMOS-based flexible-arrange distributed neural interface system for wide-area BMI. BioCAS Takashi Tokuda, Kosuke Takamatsu, Yicheng Wei, Yasufumi Yokoshiki
2022	—	`conf`	A Highly Backdrivable Robotic Arm using Low Friction and High Accuracy Cycloidal Geared Motors: ALFHA. SII Atsushi Kakogawa, Yoshiki Mori, Toshiki Fukasawa, Naoaki Kurimoto, Shinya Tokunaga, Takashi Tokuda, Akira Yamamoto, Sadao Kawamura
2022	—	`conf`	CMOS-based distributed implantable brain interface device. NEWCAS Takashi Tokuda, Jiawen Li, Mizuki Takeuchi, Masato Fukamachi, Yasufumi Yokoshiki
2021	J	`jnl`	Micro-LED Array-Based Photo-Stimulation Devices for Optogenetics in Rat and Macaque Monkey Brains. IEEE Access Yasumi Ohta, Mark Christian Guinto, Takashi Tokuda, Mamiko Kawahara, Makito Haruta, Hironari Takehara, Hiroyuki Tashiro, Kiyotaka Sasagawa, Hirotaka Onoe, Reona Yamaguchi, Yoshinori Koshimizu, Kaoru Isa, Tadashi Isa, Kenta Kobayashi, Yasemin M. Akay, Metin Akay, Jun Ohta
2020	J	`jnl`	Guest Editorial: Special Issue on Selected Papers From IEEE BioCAS 2019. IEEE Trans. Biomed. Circuits Syst. Jun Ohta, Benoit Gosselin, Takashi Tokuda
2020	J	`jnl`	Improved Charge Pump Design and Ex Vivo Experimental Validation of CMOS 256-Pixel Photovoltaic-Powered Subretinal Prosthetic Chip. IEEE Trans. Biomed. Eng. Po-Han Kuo, Oi-Ying Wong, Chi-Kuan Tzeng, Pu-Wei Wu, Chuan-Chin Chiao, Po-Hung Chen, Po-Chun Chen, Yueh-Chun Tsai, Fang-Liang Chu, Jun Ohta, Takashi Tokuda, Toshihiko Noda, Chung-Yu Wu
2020	J	`jnl`	Needle-Type Imager Sensor With Band-Pass Composite Emission Filter and Parallel Fiber-Coupled Laser Excitation. IEEE Trans. Circuits Syst. I Fundam. Theory Appl. Erus Rustami, Kiyotaka Sasagawa, Kenji Sugie, Yasumi Ohta, Makito Haruta, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2019	C	`conf`	A Thin Composite Emission Filter and Fiber Coupled Laser Excitation for Implantable Fluorescence Imager Application. ISCAS Erus Rustami, Kiyotaka Sasagawa, Yasumi Ohta, Makito Haruta, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2018	—	`conf`	A 17-bit 104-dB-DR High-Precision Low-Power CMOS Fluorescence Biosensor With Extended Counting ADC and Noise Cancellation. NEWCAS Mehdi Noormohammadi Khiarak, Kiyotaka Sasagawa, Takashi Tokuda, Jun Ohta, Sylvain Martel, Yves De Koninck, Benoit Gosselin
2018	C	`conf`	Active Control of μLED Arrays for Optogenetic Stimulation. ISCAS Leila Montazeri, Nizar El Zarif, Takashi Tokuda, Jun Ohta, Mohamad Sawan
2018	C	`conf`	An Energy-Efficient CMOS Biophotometry Sensor With Incremental DT-∑Δ ADC Conversion. ISCAS Mehdi Noormohammadi Khiarak, Kiyotaka Sasagawa, Takashi Tokuda, Jun Ohta, Sylvain Martel, Yves De Koninck, Benoit Gosselin
2018	—	`conf`	Battery-Free. Sticker-Like, Device for Health Monitoring, Operated by Optical Power Transfer. BioCAS Wuthibenjaphonchai Nattakarn, Makito Haruta, Toshihiko Noda, Kiyotaka Sasagawa, Takashi Tokuda, Mohamad Sawan, Sandro Carrara, Jun Ohta
2018	J	`jnl`	Compact Lensless Fluorescence Counting System for Single Molecular Assay. IEEE Trans. Biomed. Circuits Syst. Hironari Takehara, Yuta Nakamoto, Narihito Ikeda, Kiyotaka Sasagawa, Makito Haruta, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2018	—	`conf`	Excitation and Emission Filters for Implantable Fluorescence Imaging Devices by Laser Lift-Off Process. BioCAS Kiyotaka Sasagawa, Yasumi Ohta, Makito Haruta, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2018	C	`conf`	Live Demonstration: An Energy-Efficient CMOS Biophotometry Sensor Interface. ISCAS Mehdi Noormohammadi Khiarak, Kiyotaka Sasagawa, Takashi Tokuda, Jun Ohta, Sylvain Martel, Yves De Koninck, Benoit Gosselin
2018	C	`conf`	Live Demonstration: IoT micronode with optical ID transmission capability operated by optical energy harvesting. ISCAS Takashi Tokuda, Wuthibenjaphonchai Nattakarn, Takaaki Ishizu, Makito Haruta, Toshihiko Noda, Kiyotaka Sasagawa, Jun Ohta, Mohamad Sawan
2017	—	`conf`	A high-precision CMOS biophotometry sensor with noise cancellation and two-step A/D conversion. NEWCAS Mehdi Noormohammadi Khiarak, Kiyotaka Sasagawa, Takashi Tokuda, Jun Ohta, Sylvain Martel, Yves De Koninck, Benoit Gosselin
2017	—	`conf`	CMOS-based opto-electric neural interface devices for optogenetics. MWSCAS Takashi Tokuda, Makito Haruta, Toshihiko Noda, Kiyotaka Sasagawa, Jun Ohta
2017	—	`conf`	Fabrication and in vivo demonstration of microchip-embedded smart electrode device for neural stimulation in retinal prosthesis. BioCAS Toshihiko Noda, Shinya Nishimura, Yukari Nakano, Yasuo Terasawa, Makito Haruta, Kiyotaka Sasagawa, Takashi Tokuda, Jun Ohta
2017	—	`conf`	Fluorescence imaging device with an ultra-thin micro-LED. BioCAS Kiyotaka Sasagawa, Makito Haruta, Koki Fujimoto, Yasumi Ohta, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2017	J	`jnl`	Implantable Microimaging Device for Observing Brain Activities of Rodents. Proc. IEEE Jun Ohta, Yasumi Ohta, Hiroaki Takehara, Toshihiko Noda, Kiyotaka Sasagawa, Takashi Tokuda, Makito Haruta, Takuma Kobayashi, Yasemin M. Akay, Metin Akay
2017	—	`conf`	Parylene-based flexible imaging device for physiological measurement of rodent brain. IEEE SENSORS Takahiro Yamaguchi, Hajime Hayami, Yoshinori Sunaga, Makito Haruta, Toshihiko Noda, Kiyotaka Sasagawa, Takashi Tokuda, Jun Ohta
2017	J	`jnl`	Stimulator Design of Retinal Prosthesis. IEICE Trans. Electron. Jun Ohta, Toshihiko Noda, Kenzo Shodo, Yasuo Terasawa, Makito Haruta, Kiyotaka Sasagawa, Takashi Tokuda
2016	J	`jnl`	CMOS-Based Optoelectronic On-Chip Neural Interface Device. IEICE Trans. Electron. Takashi Tokuda, Hiroaki Takehara, Toshihiko Noda, Kiyotaka Sasagawa, Jun Ohta
2016	—	`conf`	CMOS-based opto-electronic neural interface devices for optogenetics. EMBC Takashi Tokuda, Satoki Noguchi, Satoru Iwasaki, Hiroaki Takehara, Toshihiko Noda, Kiyotaka Sasagawa, Jun Ohta
2016	—	`conf`	Compact lensless digital counting system for fluorescent micro-reaction-chamber array. BioCAS Hironari Takehara, Yuta Nakamoto, Kiyotaka Sasagawa, Hiroaki Takehara, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2016	—	`conf`	Hemodynamic imaging using an implantable self-reset image sensor. BioCAS Kiyotaka Sasagawa, Takahiro Yamaguchi, Makito Haruta, Yasumi Ohta, Hiroaki Takehara, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2016	J	`jnl`	In Vitro Long-Term Performance Evaluation and Improvement in the Response Time of CMOS-Based Implantable Glucose Sensors. IEEE Des. Test Takashi Tokuda, Toshikazu Kawamura, Keita Masuda, Tomohiro Hirai, Hironari Takehara, Yasumi Ohta, Mayumi Motoyama, Hiroaki Takehara, Toshihiko Noda, Kiyotaka Sasagawa, Jun Ohta, Teru Okitsu, Shoji Takeuchi
2016	—	`conf`	Intelligent motor modules system. GCCE Takashi Tokuda, Shigeki Doi
2016	—	`conf`	Neural stimulators for retinal prosthesis embedded with CMOS microchips. MWSCAS Toshihiko Noda, Hiroaki Takehara, Kiyotaka Sasagawa, Takashi Tokuda, Jun Ohta
2016	C	`conf`	On-chip fluorescence detection system with high-density microchamber array based on CMOS image sensor. ISCAS Jun Ohta, Hironari Takehara, Kiyotaka Sasagawa, Hiroaki Takehara, Toshihiko Noda, Takashi Tokuda
2015	—	`conf`	CMOS-based on-chip neural interface devices for optogenetics. BioCAS Takashi Tokuda, Hiroaki Takehara, Toshihiko Noda, Kiyotaka Sasagawa, Jun Ohta
2015	—	`conf`	Fabrication and functional demonstration of a smart electrode with a built-in CMOS microchip for neural stimulation of a retinal prosthesis. EMBC Toshihiko Noda, Takumi Fujisawa, Ryohei Kawasaki, Hiroyuki Tashiro, Hiroaki Takehara, Kiyotaka Sasagawa, Takashi Tokuda, Jun Ohta
2015	—	`conf`	High coupling efficiency contact imaging system having micro light pipe array for a digital enzyme-linked immunosorbent assay. BioCAS Hironari Takehara, Mizuki Nagasaki, Kiyotaka Sasagawa, Hiroaki Takehara, Toshihiko Noda, Takashi Tokuda, Hiroyuki Noji, Jun Ohta
2014	—	`conf`	An implantable green fluorescence imaging device using absorption filters with high excitation light rejection ratio. BioCAS Yoshinori Sunaga, Makito Haruta, Takahiro Yamaguchi, Mayumi Motoyama, Yasumi Ohta, Hiroaki Takehara, Toshihiko Noda, Kiyotaka Sasagawa, Takashi Tokuda, Jun Ohta
2014	—	`conf`	An implantable image sensor with self-reset function for brain imaging. BioCAS Kiyotaka Sasagawa, Takahiro Yamaguchi, Makito Haruta, Yoshinori Sunaga, Hironari Takehara, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2014	—	`conf`	Demonstration of implantable CMOS image sensors for functional brain imaging. BioCAS Kiyotaka Sasagawa, Yoshinori Sunaga, Makito Haruta, Takahiro Yamaguchi, Hironari Takehara, Hiroaki Takehara, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2013	C	`conf`	A CMOS microchip-based retinal prosthetic device for large numbers of stimulation in wide area. ISCAS Jun Ohta, Toshihiko Noda, Kiyotaka Sasagawa, Takashi Tokuda, Yasuo Terasawa, Hironari Kanda, Takashi Fujikado
2013	—	`conf`	An in vitro demonstration of CMOS-based optoelectronic neural interface device for optogenetics. EMBC Takashi Tokuda, S. Nakajima, Y. Maezawa, Toshihiko Noda, Kiyotaka Sasagawa, Yasuyuki Ishikawa, Sadao Shiosaka, Jun Ohta
2013	—	`conf`	Implantable image sensor based on intra-brain image transmission. EMBC Kiyotaka Sasagawa, Yoshiaki Ishii, Shogo Yokota, Takashi Matsuda, Peter Davis, Bing Zhang, Keren Li, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2012	—	`conf`	A CMOS-based on-chip neural interface device equipped with integrated LED array for optogenetics. EMBC Takashi Tokuda, Tomoaki Miyatani, Yasuyo Maezawa, Takuma Kobayashi, Toshihiko Noda, Kiyotaka Sasagawa, Jun Ohta
2012	—	`conf`	A micro imaging device for measuring neural actvities in the mouse deep brain with minimal invasiveness. BioCAS Jun Ohta, Chikara Kitsumoto, Toshihiko Noda, Kiyotaka Sasagawa, Takashi Tokuda, Mayumi Motoyama, Yasumi Ohta, Takuma Kobayashi, Yasuaki Ishikawa, Sadao Shiosaka
2012	—	`conf`	Baseband signal transmission experiment for intra-brain communication with implantable image sensor. EMBC Kiyotaka Sasagawa, Shogo Yokota, Takashi Matsuda, Peter Davis, Bing Zhang, Keren Li, Takuma Kobayashi, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2012	—	`conf`	Image signal transmission through brain by an implantable micro-imager. BioCAS Kiyotaka Sasagawa, Shogo Yokota, Chikara Kitsumoto, Takashi Matsuda, Peter Davis, Bing Zhang, Keren Li, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2011	J	`jnl`	CMOS Imaging Devices for Biomedical Applications. IEICE Trans. Commun. Jun Ohta, Takuma Kobayashi, Toshihiko Noda, Kiyotaka Sasagawa, Takashi Tokuda
2011	—	`conf`	CMOS-based smart-electrode-type retinal stimulator with bullet-shaped bulk Pt electrodes. EMBC Takashi Tokuda, Takasuke Ito, Takuya Kitao, Toshihiko Noda, Kiyotaka Sasagawa, Yasuo Terasawa, Hiroyuki Tashiro, Hironari Kanda, Takashi Fujikado, Jun Ohta
2011	C	`conf`	Fabrication of a flexible neural interface device with CMOS-based smart electrodes. VLSI-SoC Toshihiko Noda, Takuya Kitao, Takasuke Ito, Kiyotaka Sasagawa, Takashi Tokuda, Yasuo Terasawa, Hiroyuki Tashiro, Hiroyuki Kanda, Takashi Fujikado, Jun Ohta
2011	C	`conf`	Micro CMOS image sensor for multi-area imaging. VLSI-SoC Kiyotaka Sasagawa, Hiroyuki Masuda, Ayato Tagawa, Takuma Kobayashi, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2011	—	`conf`	Wireless intra-brain communication for image transmission through mouse brain. EMBC Kiyotaka Sasagawa, Takashi Matsuda, Peter Davis, Bing Zhang, Keren Li, Takuma Kobayashi, Toshihiko Noda, Takashi Tokuda, Jun Ohta
2010	J	`jnl`	Development and in vivo Demonstration of CMOS-Based Multichip Retinal Stimulator With Simultaneous Multisite Stimulation Capability. IEEE Trans. Biomed. Circuits Syst. Takashi Tokuda, Yoichi Takeuchi, Yuki Sagawa, Toshihiko Noda, Kiyotaka Sasagawa, Kentaro Nishida, Takashi Fujikado, Jun Ohta
2009	—	`conf`	CMOS-based flexible multi-site retinal stimulator toward retinal prosthesis technology. CICC Takashi Tokuda, Yoichi Takeuchi, Toshihiko Noda, Kiyotaka Sasagawa, Jun Ohta
2009	J	`jnl`	Implantable CMOS Biomedical Devices. Sensors Jun Ohta, Takashi Tokuda, Kiyotaka Sasagawa, Toshihiko Noda
2009	J	`jnl`	Polarization-Analyzing CMOS Image Sensor With Monolithically Embedded Polarizer for Microchemistry Systems. IEEE Trans. Biomed. Circuits Syst. Takashi Tokuda, Hirofumi Yamada, Kiyotaka Sasagawa, Jun Ohta
2009	C	`conf`	Polarization-analyzing CMOS Image Sensor using Monolithically Embedded Polarizer for Microchemistry Systems. ISCAS Takashi Tokuda, Hirofumi Yamada, Kiyotaka Sasagawa, Jun Ohta
2008	—	`conf`	CMOS LSI-based multi-chip flexible retinal prosthesis device for subretinal implantation. CICC Takashi Tokuda, Shigeki Sawamura, Yasuo Terasawa, Yasuo Tano, Jun Ohta
2008	C	`conf`	Polarization analyzing CMOS sensor for microchamber/microfluidic system based on image sensor technology. ISCAS Takashi Tokuda, Sho Sato, Hirofumi Yamada, Jun Ohta
2007	—	`conf`	Integration of CMOS and MEMS Technologies in the Development of a Neural Imaging and Interface Device: Showcase of an Emerging Bioimaging Technique. CICC David C. Ng, Taro Mizuno, Takashi Tokuda, Masahiro Nunoshita, Hideki Tamura, Yasuyuki Ishikawa, Sadao Shiosaka, Jun Ohta
2006	—	`conf`	A New Neural Imaging Approach Using a CMOS Imaging Device. EMBC David C. Ng, Takashi Tokuda, Takuma Nakagawa, Hideki Tamura, Masahiro Nunoshita, Yasuyuki Ishikawa, Sadao Shiosaka, Jun Ohta
2006	—	`conf`	A multi-chip-architecture based flexible stimulation device for retinal prosthesis with a flip-chip packaging technique. EMBC Takashi Tokuda, Masayuki Kawada, Sachie Sugitani, Mari Taniyama, Akihiro Uehara, Keiichiro Kagawa, Masahiro Nunoshita, Jun Ohta
2006	J	`jnl`	Pulse frequency modulation based CMOS image sensor for subretinal stimulation. IEEE Trans. Circuits Syst. II Express Briefs David C. Ng, Tetsuo Furumiya, Koichi Yasuoka, Akihiro Uehara, Keiichiro Kagawa, Takashi Tokuda, Masahiro Nunoshita, Jun Ohta
2005	—	`conf`	Retinal prosthesis device based on pulse-frequency-modulation vision chip. ISCAS (3) Jun Ohta, Keiichiro Kagawa, Takashi Tokuda, Masahiro Nunoshita
2004	J	`jnl`	A high-sensitive digital photosensor using MOS interface-trap charge pumping. IEICE Electron. Express Akihiro Uehara, Keiichiro Kagawa, Takashi Tokuda, Jun Ohta, Masahiro Nunoshita
2004	—	`conf`	A retinal prosthetic device using a pulse-frequency-modulation CMOS image sensor. ASP-DAC Jun Ohta, Tetsuo Furumiya, David C. Ng, Akihiro Uehara, Keiichiro Kagawa, Takashi Tokuda, Masahiro Nunoshita
2004	—	`conf`	Improvement of saturation characteristics of a frequency-demodulation CMOS image sensor. ASP-DAC Jun Ohta, Keiichiro Kagawa, Koichi Yamamoto, Takashi Tokuda, Yu Oya, Masahiro Nunoshita
2000	—	`conf`	Pulse-Modulated Vision Chips with Versatile-Interconnected Pixels. IPDPS Workshops Jun Ohta, Akihiro Uehara, Takashi Tokuda, Masahiro Nunoshita