Porn star Mika Kayama is at the frontier of a push to develop videos and content in Japan that Sony Corp. and Panasonic Corp. need to lure customers for their new 3-D televisions.

Kayama and Yuma Asami, the top actresses of adult-movie maker S1 No.1Style, will star in the country's first DVDs for the 3-D format TVs, providing content analyst Yuji Fujimori says can trigger the success of the new sets. Sales of adult videos in Japan were ¥108.6 billion in 2009, according to Takashi Kadokura, an economist who runs Yokohama-based BRICs Research Institute.

That represents about 30 percent of the overall video market in the nation, according to Kadokura.