The tiny Amnesty International Japan headquarters is hidden on the fourth floor of a nondescript building in a dull business district not far from Ochanomizu, in central Tokyo.

You would think they should at least fly their bright yellow banner from their windows to advertise their presence not only in the area but on the national NGO map.

As part of Amnesty International's network of activists who since 1961 have fought a hard battle to defend human rights around the world, the Japanese office needs all the support it can get.