Takefuji Lab. is a neural and multimedia center for solving real-world problems including cybersecurity problems, VLSI CAD, medical imaging, molecular biology, operations research, mathematics, games, management science, agriculture, financial engineering, computer-art, energy-harvesting, and other intractable problems.

Our projects has been or had been supported by Information-technology Promotion Agency of METI, TEPCO, Moritani, necmagnus, KAST, jaxa, NHK, Mitsubishi( retina camera, wireless), FujiXerox, Tripwire, Science Park, ai-cynap, Device Drivers, Suzuki, startek, clara, scarabs, instructional design, creator's, roumap, freegene, groovymedia, ousia, Sharp, Beat, JR-east, signaCert, Obayashi, Kajima, mitsubishi-enpitsu, toadoro, quality, zenta, genexus, kanagawa, aizu_denryoku, JWA, yamazaki, kankyoResearch, archeco, inclusionjapan, sunnyHealth, honda-ms, niigata-techno, yuki, daiyufreeze, tf-service, MaBeee, and other organizations.

We have been supporting the CEDECI project in Argentina from Nov., 1995 , the PSDI (Philippine Software Development Institute) of National Computer Center of the Philippine government from March 30, 1997, and VITTI (Vietnam Information Technology Training Institute) from June 4, 1998, Royal Scientific Society project in Jordan from Jan. 28, 2001 CTTISC, SriLanka project from Dec. 2 of 2003 through the assistance of the JICA, and Multimedia University of Malaysia. We have also been supporting Tomoe soroban, JNSA, Institute of tropical medicine , Japan Food Service Association , TrustE, balance-tsumiki,


Title Romanesco_photoed_by_takefuji

Infrasound monitoring is needed for investigating noise pollution (submitted 5 May 2017)(accepted May 19 2017) eLetter, Science

Confined unfrozen water plays a key role for water pipe repairs (submitted 14 March 2017)(accepted May 16 2017) eLetter, Science

The large government funds should be shared with many researchers (20 April 2017) eLetter, Science

Amateurism is the mother of invention (15 April 2017) eLetter, Science

Problems of photovoltaics solar energy (14 April 2017) eLetter, Science

Ensemble methods significantly improve prediction (12 April 2017) eLetter, Science

Statistical syllogism and deductive syllogism in software packages (12 April 2017) eLetter, Science

Inductive and deductive reasoning must be merged for enhancing prediction and breaking its limits (8 April 2017) eLetter, Science

Ensemble methods can improve election prediction (7 April 2017) eLetter, Science

Cooling power can be improved by overlaying metamaterials (31 March 2017) eLetter, Science

Magma energy power plant (11 March 2017) eLetter, Science

Black box is not safe at all (20 October 2016) eLetter, Science

A near-optimum parallel planarization algorithm (Sept. 1989) Report, Science


音力発電および速水君は JR東日本が実験してきている発電床プロジェクトとは、





Motorcycle thermoelectric power generation


TBS radio

NHK World

Fastest SOM algorithm in the world

Thermoelectric power generator

Shugiin internet TV

ultra-low cost internet gadget design (Ohmsha)

Circuit Cellar (open source)

Elekijack (open source)

Transistor-Gijutsu (open source)

Iwanami Junior book

Technology and Society(現代技術と社会) in Spring 2017

Takefuji lab. projects

RFID newspaper articles

Best small hotel in Nagasaki

E-kit projects


Public Source

Lectures (password required)

Long-term Projects


Demo pages


Security articles & comments

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Prof. Yoshiyasu Takefuji Email: takefuji (at mark)sfc.keio.ac.jp
Keio University
Faculty of Environmentral Information
5322 Endo, Fujisawa
2520882 JAPAN
Fax: +81-466-47-5041
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