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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Proceedings ArticleDOI
Implantable CMOS imaging device with absorption filters for green fluorescence imaging
Yoshinori Sunaga,Makito Haruta,Hironari Takehara,Yasumi Ohta,Mayumi Motoyama,Toshihiko Noda,Kiyotaka Sasagawa,Takashi Tokuda,Jun Ohta +8 more
TL;DR: In this article, an implantable CMOS imaging device for in-vivo green fluorescence imaging with efficient excitation light rejection using a combination of absorption filters was developed. But in the case of the implantable device, interference filters are not suitable because their transmission spectra depend on incident angle.
Journal ArticleDOI
Effect of lower growth temperature on C incorporation in GeC epilayers on grown by MBE
TL;DR: In this article, the effect of lower growth temperature Ts on C incorporation to substitutional sites in Ge 1−x C x / Si (0 0 1) grown by molecular beam epitaxy was investigated.
Journal ArticleDOI
Fabrication and validation of multichip neural stimulator for in vivo experiments toward retinal prosthesis
Takashi Tokuda,Sachie Sugitani,Mari Taniyama,Akihiro Uehara,Yasuo Terasawa,Keiichiro Kagawa,Masahiro Nunoshita,Yasuo Tano,Jun Ohta +8 more
TL;DR: In this paper, a complementary metal oxide semiconductor (CMOS) multichip neural stimulator was fabricated and characterized for retinal prosthesis, and the proposed packaging technology is based on a flip-chip technique and has a feature of embedded Pt bulk electrodes.
Journal ArticleDOI
Complementary Metal Oxide Semiconductor Based Multimodal Sensor for In vivo Brain Function Imaging with a Function for Simultaneous Cell Stimulation
Ayato Tagawa,Masahiro Mitani,Hiroki Minami,Toshihiko Noda,Kiyotaka Sasagawa,Takashi Tokuda,Jun Ohta +6 more
TL;DR: It is successfully demonstrated that fluorescent imaging and TBS-like current injection can be simultaneously performed in the electrode area of a brain phantom.
Journal ArticleDOI
Catalytic Asymmetric Synthesis of 3,3′‐Diaryloxindoles as Triarylmethanes with a Chiral All‐Carbon Quaternary Center: Phase‐Transfer‐Catalyzed SNAr Reaction.
TL;DR: In this article, a chiral bifunctional quaternary phosphonium bromide catalyst was used in the SNAr reaction of 3-aryloxindoles under phase-transfer conditions.