Japanese advertising and competition laws have been subject to government reform and restructuring in the past few years.
Business relations in Japan are built over time. Study the different strategies and choose the most suitable one for your activities before you get there. A direct strategy will make you the sole bearer of the reins of your project. Going through intermediaries and partnerships will mean having to rely on others to build up your venture, but they may also prove to have a better knowledge of the market, too. Finally, commerce with the government through procurement is also an option.
Japanese laws concerning labelling, product marking and packaging primarily relate to importation, security and health. Requirements are often product-specific and different from the EU standards which European businesses are accustomed to abiding by.