Human-like AI side-by-side with humans

Advanced technical civilization has been created from human being’s unique ability to think cognitively and communicate effectively.

We believe that by infusing these unique abilities with technology, the individuality and characteristics of each person can be maximized and the world can develop even further.

That is why we will provide Human-like AI that is close to and supports everyone.

Management Member


CEO Atsushi Ishii

After working for IBM Japan, Ishii was in charge of large-scale search engine development for Rakuten and Lycos. Since then, he has overseen online game development across Japan, the U.S., and Korea, provided technical cooperation to the top teams in the Amazon Robotics Challenge, provided AI learning simulators to Honda, and overseen NEDO cloud robotics development. Representative of Blockchain EXE, a blockchain community. He is currently developing the human-like AI platform "LUDENS". Lecturer of the 2018 AI Special Lecture at Stanford University. Former visiting researcher at the University of Electro-Communications. Regional head of Japan at Enterprise Ethereum Alliance.


CTO Hikaru Takahashi

Experienced in numerous system developments at a major independent system integrator. Takahashi joined LYCOS Japan in 2001 and was in charge of designing and developing E-mail systems and community systems for large-scale users. Since then, he has been involved in the design and development of large-scale community systems at Rakuten and Infoseek. He specializes in the design and development of back-end systems that handle 100 million units of access on a daily basis, and has a large track record of back-end development for large-scale online games.


CAIO(Chief AI Officer) Kazuaki Hiraga

Hiraga played a pivotal role in the development of search engines for Infoseek and Rakuten. He was a key member of the FAST team, which became the core of Microsoft Bing, a generative AI-powered search engine. After gaining experience in technical development at the U.S.-based company Basis, which provided language processing engines to Google and Amazon, he drove the design and development of next-generation search engines at Rakuten. At Mercari, he served as the lead architect for search engine fundamentals and also held the roles of Tech Lead and Engineering Manager. He assumed the responsibility of overseeing AI initiatives across the organization.

“What IS Communication between humans. Something so commonplace and taken for granted on a daily basis, but at the same time, is so esoteric and intriguing.
Take the plunge in a quest for humanity. That is who we are, Couger.”

Atsushi Ishii



Hiroshi Yamakawa

Doctor of Engineering. Senior Chief Researcher, Graduate School of Engineering, The University of Tokyo. Japanese Society for Artificial Intelligence (Artificial General Intelligence Lead Manager, Former Editor-in-Chief). Director, Intelligent Systems Division,Cyber Informatics Research Institute, Kindai University (Guest Professor). Supervisory Guest Researcher, Riken. Special Researcher, Tamagawa University Brain Science Institute. He specializes in artificial intelligence, particularly artificial general intelligence, whole-brain architecture, concept acquisition, and opinion aggregation techniques.


Hiroshi Fujiyoshi

Professor at Chubu University. Ph.D., Chubu University. He has been engaged in computer vision research as a visiting researcher at the Robotics Institute, Carnegie Mellon University, USA. He received the RoboCup Research Award, the Best Paper Award of CVIM, the Transactions of Information Processing Society of Japan, the Yamashita Memorial Research Award of Information Processing Society of Japan, the Outstanding Academic Award of Image Sensing Symposium, the Best Paper Award of Information and System Society of IEICE, the Nagao Award of MIRU, and others.


Yuzo Ishikawa

He joined Daini-Denden Corporation, the predecessor of KDDI Corporation, in 1985. After serving as Representative Director and Executive Vice President of KDDI Corporation, he will serve as President and Representative Director of Jupiter Telecommunications Corporation ( today's JCOM Co., Ltd.) from 2020 to 2022.

About us

Couger Co., Ltd.

Established in December 2006

Koshiichi Blg. 201, 6-19-16 Jingumae, Shibuya-ku, Tokyo 150-0001

CEO Atsushi Ishii