Lightweight and Explainable AI for the Medical and Manufacturing Fields


Hacarus Inc., founded in 2014, Kyoto, Japan, is the leading provider of explainable lightweight AI Tools. Its solutions are used in the Medical and Manufacturing fields to enable humans to make better, faster and more reliable decisions, based on AI driven insights. Hacarus proprietary AI engine is built using Sparse Modeling, an AI method that understands data like a human would by its unique key features and is far more resource, time and energy efficient compared to deep learning.


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Company Profile

Name Hacarus Inc.
Address Dai 12 Hase Building 5A Hashibenkei-cho, Nakagyo-ku Kyoto, 604-8151 Japan
Establishment 2014
Capital USD 3,700,000
Employee 20
Branch Office Kyoto Japan
Category AI


Kenshin Fujiwara

Chief Executive Officer

California State University

B.S. of Computer Science from California State University. Worked on the GPU library development for PlayStation2 at Sony Computer Entertainment. Co-founded the first startup at the age of 26 and served a co-founder/CTO role at multiple technology startups. Founded Hacarus in January 2014.

Takashi Someda

Chief Technology Officer

Kyoto University

Joined Hacarus in October 2016. M.S of Statistics and Information Science from Kyoto University Graduate School of Informatics. Founded the startup after being adopted by the Information Processing Promotion Agency. Responsible for software development at Sun Microsystems, web application development at Synergy Marketing, and growth hacking at Nulab prior to Hacarus.

Naoki Kitora

Chief Data Officer

Kansai University

Joined Hacarus in April 2018 as Chief Data Officer. B.S. of Engineering from Kansai University. Worked as a programmer and infrastructure engineer at Synergy Marketing as well as data analysis and machine learning from 2011. Presented papers at the Institute of Artificial Intelligence and the Institute of Language Processing.

Akihiro Hojo

Chief Financial Officer

Kansai Foreign Language University

Joined Hacarus in October 2016. B.A. from Kansai Foreign Language University. Worked on accounting audits and data analytics for major financial institutions at Tohmatsu, and business management consulting for startups at Tohmatsu Venture Support. Holds certified public accountants and tax accountants.

Adrian Sossna

Chief Marketing Officer

Doshisha University

M.B.A & B.A from Doshisha University, Yonsei University, Fudan University, Chinese University of Hong Kong and University of Gothenburg. Published Business Case writer with Ivey / Harvard Business Press. Experience from Start-Up Marketing for the IoT, Automotive and Cybersecurity fields prior to joining Hacarus.