• Director

Joji Toyama

After graduating from the University of Tokyo with a bachelor’s degree in engineering, he went on to graduate with a master’s degree in engineering from the same university, receiving the Dean’s Award of the Graduate School of Engineering. He devoted himself to deep learning research at the Matsuo Laboratory of the University of Tokyo and led many joint research projects with companies as a leader.
After joining DeepX, he has been involved in projects to develop automated driving systems for construction machinery, including a project on automated driving of hydraulic excavators, etc. He will be appointed as a director in June 2019 and co-chairman in January 2023.


Japan is facing a major labor shortage as the number of workers begins to decline due to the country’s low birthrate and aging population. The construction industry, in particular, is already experiencing a serious shortage of workers, due in part to the harsh environment and the need for skilled craftsmen. We are facing the possibility that new buildings will not be built, infrastructure will not be maintained, and construction quality will deteriorate due to a lack of skills passed on from generation to generation.
We believe that advanced robotics technology has the potential to solve these problems. Automated car driving and food delivery robots are becoming more familiar, and the software technology that drives these machines is advancing by leaps and bounds. By applying this technology to construction machinery, we aim to play a role in solving the labor shortage in the construction industry and thereby support the development of Japan in 2022.
In order to accomplish the above, we have assembled a team of highly capable and ambitious members who continue to learn every day, work tenaciously, and give top priority to solving problems in the field. We are waiting for comrades who share our mission.



  • Solving Social Issues
  • Emergent team activities


  • I've been intensely passionate about bouldering for a long time.
    Though there are some people who like bouldering in our company, I was the first one.
    I believe that bouldering is a sport that has helped me grow a lot as an AI engineer and in this regard, I can call the sport “Mother”.
    First of all, bouldering teaches me how important daily efforts are. Bouldering is a sport that relatively depends on muscle mass, so the more you practice, the stronger you become. Though I have played tennis and soccer before, it is a new experience in terms of the fact that I can clearly realise the growth every day. As an AI engineer, day-to-day efforts such as keeping track of papers and organising codes are crucial and the bouldering experience brings in a huge plus to me.
    Also, just like Reinforcement Learning, one of the AI technologies, I think it's important to strengthen ourselves as well as strengthening agents.
    Second, bouldering develops the ability to solve problems by reaching the goal in the shortest possible time. Bouldering is a game where you use a limited number of holds to reach the goal, but the difficulty of reaching the goal varies greatly depending on how you use the holds. By finding the best route quickly, you can get to the goal before fatigue builds up in your body. This helps me improve the essential skill as an AI engineer, which is to understand the essence of the issues and gain the most value with the fewest resources.
    Finally, bouldering tells me how great the cooperation with peers is. Bouldering is basically an individual sport, but people who are challenging the same route naturally have conversations such as this had better be done this way (this is called a session). The effect of the session is enormous.
    When I climb with peers, I will discover the route solution that I would never come up with by myself. This experience has contributed greatly in the occasions when I address the issue together with my peers and discuss various ideas.
    While honoring Mother bouldering, I want to keep climbing the walls of my life as well as the artificial walls.

  • I have been part of a band since I was in high school, and continue to play the guitar. My father has a band of his own as well, which I join for live performances every year or so. It’s a lot of fun, despite the obvious age gap.

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