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AI ! Utilizing the knowledge cultivated in various industries in the AI ​​field !



DeNA AI was founded in 1999 with the philosophy of “Delight beyond imagination for each and every person.”

The company operates businesses in various fields, including the AI ​​business, sports business, and game business, and is constantly challenging itself to develop new businesses.

This time, while introducing DeNA’s AI business, we will approach the company’s characteristics.

Table of contents 

  • What is DeNA
    • Company overview
    • Vision (value)
    • History
    • Performance trends
    • Stock price
  • AI-related business “DeNA x AI”
    • Improving operational efficiency of liquefied natural gas terminals
    • Create “fontgraphy” to generate logos from voice
    • Providing “speech synthesis technology” for virtual security systems
    • Development of game play support AI tool for “Gyakuten Othellonia”
  • DeNA, an ever-changing company
    • Live streaming business “Pococha”
    • Sports business “Yokohama DeNA BayStars”
    • Health care business “kencom”
    • Automotive business “GO”
    • Game business “Touhou Danmakukagura”
  • Recruitment information of DeNA
    • Recruitment type
    • Application overview
  • Summary

What is DeNA

company overview

company name DeNA Co., Ltd. (English name: DeNA Co., Ltd.)
Established March 4, 1999
location Shibuya Scramble Square, 2-24-12
Shibuya, Shibuya-ku, Tokyo 150-6140
representative Chairman and Representative Director Tomoko Namba
President and CEO Shingo Okamura
number of employees 1251 (DeNA Co., Ltd. alone, as of March 31, 2021)
2,100 (DeNA Group as a whole, as of March 31, 2021)
capital 10,397 million yen (as of March 31, 2021)

Vision (value)

“Delight beyond imagination for each and every one of us” The
joy of playing indulgently, the definite convenience that you can feel every day, the
irreplaceable health, and the newness that surprises the world. With technology and passion, we will enjoy challenges and changes, and continue to deliver Delight that spreads around the world and leads to the future

DeNA utilizes the Internet and AI to develop businesses in both the entertainment domain, which enriches the lives of each individual, and the social issue domain, which makes the space and time of daily life more comfortable. We are a company that continues to provide world-class new Delights by making the most of our unique characteristics and fully demonstrating the individuality of each employee with a strong sense of challenge.


March 1999 Established DeNA Co., Ltd. at 4-20-6 Shimouma, Setagaya-ku, Tokyo
August 1999 Relocated the head office to 1-17-9 Tomigaya, Shibuya-ku, Tokyo
Reorganized as DeNA Co., Ltd.
November 1999 Started the auction site “Bidders”
March 2004 Mobile phone auction site “Mobaoku” launched
February 2005 Listed on Tokyo Stock Exchange Mothers
February 2006 Mobile game site “Mobage Town” launched
July 2006 Established a local subsidiary in China
January 2008 Established “DeNA Global, Inc.” in the United States
February 2008 Opened “Minna no Wedding”, a website for wedding halls and preparations for marriage
December 2010 Smartphone version “Mobage Town” launched
March 2011 Changed the service name of “Mobage-town” to “Mobage”
May 2011 Smartphone app version “Mobage” launched
June 2011 Established local subsidiary DeNA Seoul in South Korea
August 2011 Established subsidiary DeNA Asia in Singapore Established
subsidiary DeNA Sweden in Sweden
December 2013 Manga magazine app “Manga Box” launched
December 2016 Collaboration title “SUPER MARIO™ RUN” with Nintendo released
November 2017 Collaboration title “Animal Crossing Pocket Camp” with Nintendo started distribution
February 2020 Business integration with Nihon Kotsu Holdings Co., Ltd.
August 2020 Selected as “DX Brand 2020” by the Ministry of Economy, Trade and Industry and the Tokyo Stock Exchange to select companies that actively promote DX
August 2021 Relocated the head office to 2-24-12 Shibuya, Shibuya-ku, Tokyo (WeWork Shibuya Scramble Square)

Performance trends

Looking at sales revenue, we do not see rapid growth from 2018 to 2022, but we can see that we are operating stably. In 2020, operating income was negative due to the impact of the new coronavirus, but from the following year 2021, we have succeeded in generating high profits as usual.

stock price

DeNA’s stock price as of July 2022 is as follows.

In June 2022, the stock price plummeted to 1,700-1,800 yen, but in July 2022, it returned to the previous stock price of about 1,900 yen. 
for the latest stock price

AI-related business “DeNA x AI”

DeNA is developing many AI businesses. Here are four.

Improving operational efficiency of liquefied natural gas terminals

DeNA is jointly developing with Kansai Electric Power an AI solution that optimizes the fuel operation of liquefied natural gas .

It is very difficult to formulate an efficient fuel operation plan, and quality standards cannot be met unless the plan is well organized. In that case, additional resources may be required, and many years of experience and knowledge are required to achieve both safety and stability and cost reduction.

Until now, two experienced engineers worked on schedule design, but after understanding the details of the work, we succeeded in realizing automatic creation of fuel operation plans using AI that achieves both safety and stability and cost reduction. did.

Create “fontgraphy” to generate logos from voice

“fontgraphy” is a service that generates a personalized logo from each person’s voice. It was released to express the theme of DeNA’s 20th anniversary that anyone can be the leading role.

After that, we received a request from Dai Nippon Printing Co., Ltd. (hereafter, DNP) and provided customized fonts for DNP as “fontgraphy for DNP.”

With fontgraphy, just by speaking to your smartphone, AI analyzes your voice quality, and based on the results of that analysis, selects the font and image for the letters “DNP”. By multiplying the two, an original logo tailored to each speaker is generated.

In developing fontgraphy, we collected voice data from approximately 800 DeNA employees and modeled them by classifying eight impression tags, such as “sweet, cool, and lively,” into four-level scores.

Providing “speech synthesis technology” for virtual security systems

The “virtual security system” is equipped with the world’s first AI, realized by combining the security know-how that SECOM has cultivated so far as Japan’s first security company with the latest technologies of AGC, DeNA, and NTT DOCOMO. This is a security system in which virtual characters “virtual guards” provide stationed security services.

The system will be in charge of security surveillance and reception, among the duties previously performed by stationed security guards. This reduces security costs at manned facilities, enables efficient staffing, and reduces operating costs.

DeNA provided the original character design for the “virtual security guard” and voice synthesis technology for responding to visitors. Speech synthesis technology, which synthesizes speech from text, is used in car navigation systems, broadcasting in train stations, etc.

The virtual security guard uses a recurrent neural network that considers series data in the speech synthesis model, making it a natural voice that looks like an actual human being. It’s also highly scalable, allowing you to voice any text.

Development of game play support AI tool for “Gyakuten Othellonia”

“Gyakuten Othellonia” is a fighting game app that allows you to easily play with the rules of Othello provided by DeNA.
DeNA has developed a battle AI as a practice opponent who can use various decks in Gyakuten Othellonia, a recommendation AI that automatically builds recommended decks, and an AI that supports game balance adjustment.

In the mode where you can play against the computer, we have introduced a battle AI that feels like a real human, and you can easily learn how to fight against the AI ​​and how to fight.

With automatic deck generation, we aim to create a deck that suits the player from among thousands of characters, and through AI support, we aim to have people notice the “interestingness” and “depth” of the game.

In a strategic game, the game becomes more complicated over the years of operation. Therefore, AI automatically repeats the game play, evaluates the character’s performance, and supports the planner’s decision making, realizing more efficient balance adjustment work.

DeNA, an ever-changing company

So far, we have introduced the AI ​​business that DeNA is working on.

However, DeNA is developing a wide variety of businesses other than the AI ​​business. This time, we will introduce five businesses.

Live streaming business “Pococha”

DeNA operates the live distribution app “Pococha”. Pococha is a live distribution app that allows you to easily enjoy two-way communication between various unique rivers and listeners who are viewers, and has achieved 3.45 million downloads in December 2021.

Pococha’s goal is to create a place where real people can communicate with each other on the Internet. With the goal of “everyone in the world can become a special presence for someone else”, we provide a place where people can be themselves, even on the Internet, by calling each other’s names and talking to each other. doing.

In service design, we focused on lowering various hurdles so that even ordinary people can easily start streaming. Eliminates time-consuming work such as video editing, you can easily distribute by simply pressing the distribution button.

In addition, we have released a live distribution application for global use, and in January 2022, we will release a live distribution application “Voice Pococha” that connects with voice.The live streaming business is one of the businesses that DeNA is focusing on. It’s one.

Sports business “Yokohama DeNA BayStars”

DeNA has sports businesses in baseball, basketball and soccer. In recent years, data analysis using technology in the field of sports has made great progress, and the baseball team “Yokohama DeNA BayStars” is also implementing measures to strengthen players using technology.

In addition, in November 2021, we released “PLAYBACK 9”, a service that utilizes NFT. PLAYBACK 9 is a service that allows you to purchase and view digital items that have been certified by NFT. We sell the famous scenes of the game as official digital items of the team, and you can experience the world of conventional trading cards digitally. In the future, we plan to add a MARKET function that allows users to buy and sell scenes that they have obtained.

Health care business “kencom”

“Kencom” is an app provided by DeSC Healthcare, a joint venture between DeNA and Sumitomo Corporation. kencom incorporates a mechanism that allows users to easily check the results of their health checkups and promotes health promotion in a fun way, and is being introduced by health insurance associations and local governments.

With kencom, you can view health data such as checkup results on your PC or smartphone. In addition, we update health information according to user’s health data and preferences on a daily basis. can be inserted.

By February 2022, it will be used by a total of 99 organizations and about 4.8 million people, and will be linked with the cognitive function service of Nippon Tect Systems.

Automotive business “GO”

DeNA is also focusing on the automotive business.

Ride-hailing apps such as Uber are growing rapidly around the world, but the percentage of people using ride-hailing apps in Japan was only about 2% of the total. Therefore, with the aim of expanding the scale of the dispatch app, DeNA launched a taxi delivery app called “Japan Taxi” in February 2020 that combines the dispatch app business “Japan Taxi” and “MOV” provided by DeNA. GO” distribution started. Currently, 20 prefectures (*excluding some areas) are supported.

In addition, we are distributing the “GO BUSINESS” service, which can be linked with the expense settlement system, and can cut the time and effort required to settle taxi receipts. The service will be released in October 2021, and by March 2022, the number of registered companies will exceed 2,500.

Game business “Touhou Danmakukagura”

DeNA has released various smartphone applications. Released in August 2021, the Touhou Project’s first official official game “Touhou Dan Makukagura” has exceeded 4 million downloads in a month since its release.

Also, Google Play Best of 2021, which awards Google Play content that gained popularity in Japan in 2021, won the cute and casual categories.

The excitement on SNS, the number of viewers of the official live broadcast, and the number of related videos posted are also strong, and many people learned about the Touhou Project through Touhou Danmakukagura, leading to the development of new fans as well as existing fans. I was.

Recruitment information of DeNA

Recruitment type

DeNA is currently hiring for the following industries and occupations.

  • software engineer
  • infrastructure engineer
  • security engineer
  • MLOps Engineer
  • game engineer
  • AI R&D Engineer
  • data scientist
  • business job
  • game planner
  • designer

Application overview

Test period

Three months


Determined by company policy

  • Bonus Twice a year (June and December)
  • Salary revision twice a year (May and November)


  • Commuter traffic expenses
  • maternity leave
  • In-house side job
  • In-house job change
  • babysitter assistant
  • Nursing care leave
  • Remote work allowance
  • PC/monitor supply


Working hoursFlextime system
Core time: 10:30 a.m. to 4:30
p.m. Standard working hours per day: 7 hours and 45 minutes

Saturdays, Sundays, holidays, year-end and New Year holidays, holidays designated by the company
Paid vacation: 12 days in the first year of employment, 15 to 20 days from the second year onward depending on the number of years of service as of April 1

Recruitment flow


  1. My page registration
  2. Portfolio selection
  3. interview
  4. Job selection
  5. Interview (multiple times)
  6. Unofficial offer



  1. My page registration
  2. web test
  3. Document screening
  4. technical interview
  5. Workshop selection
  6. final interview
  7. Unofficial offer


This time, I introduced “DeNA”.

DeNA is a wonderful company that has achieved results not only in the AI ​​business but also in a wide range of industries.

In addition to the entertainment business, which has a strong image, we are growing day by day by working to solve social issues, such as the healthcare business and the automotive business.


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