Now the president of Six Sight, Ryuji Yokoyama drafted and established the Digital Advertising Consortium in 1996, and was appointed Vice President and Representative Director of the Consortium in the same year. In 2008, he became President and Representative Director of ADK Interactive Inc. He presided over Best in Class Partners in 2010, and became Representative Director of Digital Intelligence in 2011.
He graduated from Aoyama Gakuin University in 1982 with a degree in English and American Literature, and is the author of "Triple Media Marketing," "The Next Decade in Advertising Business," and many other books.