T
Takashi Tokuda
Researcher at Tokyo Institute of Technology
Publications - 282
Citations - 3711
Takashi Tokuda is an academic researcher from Tokyo Institute of Technology. The author has contributed to research in topics: Image sensor & CMOS. The author has an hindex of 29, co-authored 280 publications receiving 3336 citations. Previous affiliations of Takashi Tokuda include National Presto Industries & Kyoto University.
Papers
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Journal ArticleDOI
“Optical communication with brain cells by means of an implanted duplex micro-device with optogenetics and Ca 2+ fluoroimaging”
Takuma Kobayashi,Makito Haruta,Kiyotaka Sasagawa,Miho Matsumata,Kawori Eizumi,Chikara Kitsumoto,Mayumi Motoyama,Yasuyo Maezawa,Yasumi Ohta,Toshihiko Noda,Takashi Tokuda,Yasuyuki Ishikawa,Jun Ohta +12 more
TL;DR: The novel implantable device has dual LEDs and a CMOS image sensor and succeeded in activating cells locally by selective photostimulation, and the physiological Ca2+ dynamics of neural cells were visualized simultaneously by fluorescence imaging.
Journal ArticleDOI
Wafer Fusion Technique Applied to GaN/GaN System
Takashi Tokuda,Susumu Noda +1 more
TL;DR: In this paper, a GaN/GaN system was applied to a wafer fusion for the first time, where surface smoothness and a large weighting pressure were essential to achieve both a uniform interface and better reproducibility.
Journal ArticleDOI
Retinal Stimulation on Rabbit Using Complementary Metal Oxide Semiconductor Based Multichip Flexible Stimulator toward Retinal Prosthesis
Takashi Tokuda,Ryosuke Asano,Sachie Sugitani,Mari Taniyama,Yasuo Terasawa,Masahiro Nunoshita,K. Nakauchi,Takashi Fujikado,Yasuo Tano,Jun Ohta +9 more
TL;DR: The Functionality of a complementary metal oxide semiconductor (CMOS) LSI-based, multichip flexible retinal stimulator was demonstrated in retinal stimulation experiments on rabbits and is confirmed to be applicable to acute animal experiments.
Proceedings ArticleDOI
Pulse modulation CMOS image sensor for bio-fluorescence imaging applications
TL;DR: Bio-fluorescence imaging of the hippocampus in a sliced mouse brain using a pulse modulation-based image sensor and an imaging device for implantation into a mouse brain in order to measure the neural activity in the hippocampus are demonstrated.
Journal ArticleDOI
Complementary Metal-Oxide-Semiconductor Image Sensor with Microchamber Array for Fluorescent Bead Counting
Kiyotaka Sasagawa,Keisuke Ando,Takuma Kobayashi,Toshihiko Noda,Takashi Tokuda,Soo Hyeon Kim,Ryota Iino,Hiroyuki Noji,Jun Ohta +8 more
TL;DR: In this article, a femtoliter microchamber array was used for trapping microbeads and limiting the incident angle of light detected by the sensor, which is used for counting the number of fluorescent chambers.