As of December 2014, Japan has taken measures concerning the Visa Exemption Arrangements with 67 countries and regions as the chart below.
Nationals and citizens of those countries and regions shown below are not required to obtain visas to enter Japan when their visits are tourism, commerce, conferences, visiting relatives/ acquaintances, etc. However, when foreign nationals engage in paid activities in Japan, or their periods of stay exceed those stipulated in each country’s arrangement of short-term stay, visas will be required to enter Japan.
•Period of Stay
The period of stay granted at the time of the landing permission will be "15 days" for Brunei, Indonesia, and Thailand, and "90 days" for other countries and regions