MANAGEMENT
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President / Representative Director / Senior Corporate Officer / CEO / Digital Entertainment Operations Department / Digital Entertainment Publishing DepartmentKoki Kimura
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Director / Senior Corporate Officer / Live Experience Department / HR Department / Work Environment Promo DepartmentHiroyuki Osawa
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Director / Senior Corporate Officer / Development Department / Design Department / Security DivisionTatsuma Murase
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Director / Founder / Senior Corporate Officer / Vantage StudioKenji Kasahara
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Outside DirectorSatoshi Shima
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Outside DirectorAkihisa Fujita
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Outside DirectorHiromi Watase
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Full-time ASB Member (outside)Yuichiro Nishimura
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Outside ASB MemberNozomi Ueda
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Outside ASB MemberSumiko Takayama
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Senior Corporate Officer / Social Betting Business Department / Investment and Business Promotion DepartmentSho Okuyama
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Senior Corporate Officer / CS Department / Compliance DepartmentKanji Kobayashi
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CFO / Senior Corporate Officer / Corporate Promotion DepartmentKohei Shimamura
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CISO / Corporate Officer / Security DivisionNaoki Kameyama
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CDO / Corporate Officer / Design DepartmentYoshiyuki Yokoyama
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CTO / Corporate Officer / Development DepartmentJunpei Yoshino
Learn more ABOUT MIXI
Koki Kimura previously worked for a variety of companies, including those in the electrical equipment and mobile content industries. He joined mixi, Inc. (now MIXI, Inc.) in 2008. He oversaw operations consulting for the Games Department and worked on several communications-based games, including “Sunshine Ranch.” Afterward, he helped launch the MONSTER STRIKE Project. He was made a corporate officer in November 2014, appointed to the board of directors in June 2015, then became a director and corporate officer in April 2018. In June 2018, he became the president and representative director of MIXI and remained a corporate officer. In April 2020, he remained the president and representative director. In March 2021, he received a master’s degree from the Graduate School of Sport Sciences at Waseda University. In April 2022, he was made a senior corporate officer of MIXI and remained the president and representative director. In April 2023, he was made the CEO of MIXI and remained the president and representative director. He is currently the president, representative director, CEO, and a senior corporate officer of MIXI as of December 2023.
Hiroyuki Osawa worked at a certified tax accountant office and KBMJ Inc. (currently Appirits Inc.) before joining mixi, Inc. (now MIXI, Inc.) in June 2007. He oversaw accounting and finance for MIXI’s Finance Group, which included budgeting, management accounting, and disclosure for various projects. In November 2011, he was appointed executive director of the Accounting and Finance Department. After first serving as section chief of the Management Promotion Office, he was made managing director of the Management Department in June 2017. In April 2018, he was made a corporate officer. In June 2018, he was appointed to the board of directors as CFO and remained a corporate officer. In April 2020, he remained CFO and a director. In April 2022, he was made a senior corporate officer and remained CFO and a director. He is currently a director and a senior corporate officer of MIXI as of April 2023.
Tatsuma Murase joined E-Mercury (now MIXI, Inc.) in 2005. He helped develop the social network “mixi”. After leaving the company in 2009, he worked for a variety of companies in the game industry before returning to MIXI in 2013. He mainly oversaw the development of MONSTER STRIKE. In July 2016, he was placed in charge of all XFLAG engineers as executive director of XFLAG Studio’s Game Development Division. In April 2018, he was made a corporate officer and CTO. In June 2019, he was appointed to the board of directors and remained as CTO and a corporate officer. In April 2020, he remained CTO and a director. In April 2022, he was made a senior corporate officer and remained CTO and a director. He is currently a director and a senior corporate officer of MIXI as of April 2023.
As a university student in 1997, Kenji Kasahara was inspired by the IT business case studies he covered in seminars, along with the rise of online businesses in Silicon Valley. He sensed an opportunity and started a recruitment website in November 1997. In June 1999, he incorporated the company and became its representative director. His next step was to launch the social networking service “mixi” in February 2004. The company’s name was changed to “mixi, Inc.” (now MIXI, Inc.) in February 2006 and it was listed on the Tokyo Stock Exchange’s Mothers market in September of the same year. Kenji was made chairperson of the board of directors in June 2013. In April 2018, he remained as chairperson and was made a corporate officer. In June 2021, he remained a director. He is the founder of MIXI and as of April 2022, he is currently a director and senior corporate officer.
After gaining experience in venture capitals and startups, Sho Okuyama joined mixi, Inc. (now MIXI, Inc.) in April 2016. Working in the Corporate Planning Division and Investment Division, his duties included overseeing subsidiary support, business promotion, M&A, PMI, and startup investment. In October 2021, he was made chief general manager of Investment and Business Promotion Department. He was appointed corporate officer in April 2022, and he is a senior corporate officer as of April 2023.
Kanji Kobayashi joined mixi, Inc. (now MIXI, Inc.) in 2007 after receiving his graduate degree. As a legal professional, he engaged in general legal work related to the company’s services. In April 2017, he became general manager of the Legal Affairs Division, with primary responsibilities being general corporate legal affairs, intellectual property, M&A, and crisis management response. He was appointed corporate officer in April 2019, and he is a senior corporate officer as of April 2022.
After working at a music distribution company and a consulting firm, Kohei Shimamura joined mixi, Inc. (now MIXI, Inc.) in April 2016. Working in the Corporate Planning Division of Corporate Promotion Department, his duties included business support, corporate management, and M&A promotion. In October 2017, he was made general manager of the Corporate Planning Division, and in April 2019, he was put in charge of corporate management divisions as the chief general manager of corporate planning. In April 2020, he was appointed corporate officer and chief general manager of corporate promotion. He is currently a senior corporate officer and CFO of MIXI as of April 2023.