is a Japanese

billionaire A billionaire is a person with a net worth of at least one billion (1,000,000,000, i.e., a thousand million) units of a given currency, usually of a major currency such as the United States dollar, euro, or pound sterling. The American busin ...

businessman, chairman of the internet company

DMM.com is a Japan-based electronic commerce and Internet company with a diversified group of businesses that includes online shopping, eikaiwa, and video on demand service. The company manages DMM.com, an online entertainment site that allows users to ...

, who made his initial fortune in pornography. In 1999, Kameyama founded DMM.com, and is its chairman. DMM started in pornography and "adult entertainment", and has "grown into a vast collection of enterprises". In August 2017, Kameyama had an estimated net worth of US$3.5 billion. Kameyama is married, with two children.

References

1960s births Living people Japanese chief executives Japanese billionaires Date of birth missing (living people) {{Japan-business-bio-stub