passage: (CNN) -- One of Asia's youngest self-made billionaires, 35-year-old Yoshikazu Tanaka looks the part of a young internet tycoon. The Japanese founder and CEO of mobile social gaming business Gree arrived for his CNN interview wearing a hooded sweatshirt, ripped jeans and a pair bight red shoes. His personal wealth is valued at $2.2 billion so he can afford to wear whatever he wants to the office. Gree has grown from Tanaka's self-financed project into a company with a market value of around $7 billion. The share price is more than sevenfold what it was at its 2008 IPO. The company is now partnered with Tencent, one of the largest social networks in China, and in April 2011 it acquired OpenFeint, a large U.S.-based gaming network.
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  Yoshikazu Tanaka is billionaire founder of mobile games company, Gree
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  The company is valued at $7 billion; personal wealth $2.2 billion
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  Tanaka hopes his company can change Japanese society
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  Mobile gaming sector one of few areas experiencing growth
query: He hopes Gree can have positive impact on @placeholder as an example of a successful start-up.
entities: Asia CNN China Gree Japanese OpenFeint Tanaka Tencent U.S. Yoshikazu Tanaka