If you have been anywhere in Japan for any length of time over the past 30 years, there is a very good chance you will have come across Anpanman.

His round face, bright red nose, rosy cheeks and infectious smile will have beamed out at you from TV screens, billboards and supermarket shelves the length and breadth of the country. He and his seemingly endless cast of food-based friends will have waved back at you from TV commercials, shopping centers, public libraries and doctor's offices.

In the crowded and competitive world of Japanese cartoon characters, Anpanman is king. He stands astride a commercial empire worth an estimated ¥100 billion to ¥120 billion in annual revenue, and holds licensing agreements with around 70 different companies.