Akira Tsuji

IREP Co., Ltd. engages in the digital marketing business. Its services include paid listing, search engine marketing (SEM), mobile SEM, web analytics, and internet advertising. The company was founded by Masayuki Takayama in November 1997 and is headquartered in Tokyo, Japan.

Mediba, Inc. provides cellular advertising services. The company was founded in December 2000 and is headquartered in Tokyo, Japan.

Hakuhodo DY Media Partners, Inc. engages in media and digital contents business. It designs media strategies through media planning, producing, buying, traffic, and knowledge services for advertisers, and media and content owners. The firm’s business activities include advertising, sales promotion, and public relations involving newspapers, magazines, television, the Internet, outdoor, and other media; design oversight and construction of outdoor advertising installations, exhibition spaces, interiors, and advertising and public relations structures; advertising research; publication and sale of books and periodicals; planning construction, and staging of events and performances; and planning, creation, production, sale, and rental of sound and visual software. The company was founded on December 1, 2003 and is headquartered in Tokyo, Japan.