Japan will start an aggressive push to market its mobile technology abroad, especially the popular "wallet phone," a government official said.

Although Japan boasts some of the most sophisticated cell phones in the world, delivering high-speed Internet connections, digital TV broadcasts and video downloads, it has failed to make its handsets, wireless technology and mobile services hits outside of Japan.

The latest initiative, spearheaded by the government with an industry group of Japanese carriers and manufacturers, is an effort to help Japan catch up in wooing global users, said Masayuki Ito, an official at the Internal Affairs and Communications Ministry.