Yoshiro Sakai

ADK Holdings, Inc. engages in the provision of media and communications services. It offers advertising, content planning & production, sales promotions, marketing, and public relations services in various media that includes magazines, newspapers, television, radio, digital media, and out-of-home media services. The company was founded by Masao Inagaki on March 19, 1956 and is headquartered in Tokyo, Japan.