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Yoshikazu Tanaka is a Japanese entrepreneur who is a developer of Social Networking Service GREE, provided by GREE, Inc. which is an Internet business company he founded. Yoshikazu Tanaka was born in Tokyo, Mitaka-City in 1977. When 〔 Tanaka was a junior high school student,〔 Tanaka became keenly interested in changes in society by informatization and the field of information-communication by reading “Power Shift” by Alvin Toffler. As of 2003, at the age 26,〔 Tanaka started developing SNS GREE as a hobby. In February 2004,〔 Tanaka opened SNS GREE to the public, as a personal website. By March 2004, over 10,000 users had joined the SNS that soon became hard for him to manage rapidly growing service by himself. In December 2004,〔 Tanaka established a company, GREE, Inc. in order to run the service for the growing number of users. In December 2008, GREE, Inc. was listed on the Market of the High-Growth and Emerging Stocks, closed at the highest market value of shares on the first day. In February 2009, Tanaka was ranked 24th among “Japan's 40 Richest Billionaires” by Forbes Asia.〔 As of 2010, at age 33, he was ranked as “Asia's Youngest Self-Made Billionaire” under the age of 35 and was selected as the “World's Second-Youngest Self-Made Billionaire” after Facebook's Mark Zuckerberg.〔 In June 2010, 5 years after the foundation, GREE, Inc. was listed on the first section of the Tokyo Stock Exchange.〔 Tanaka was 33 years and 3 month at that time and the youngest founder whose company is listed on the TSE first section. Tanaka was able to set his social network apart from the well established Japanese brands Mixi and DeNA by concentrating on mobile games and making partnerships with major Internet Service Providers.〔 ==References== 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Yoshikazu Tanaka」の詳細全文を読む スポンサード リンク
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