Samsung-made handsets account for only about 5% (five percent) of all the smartphones currently sold in Japan. It appears that Japanese customers aren't that crazy about the Samsung brand, most of them choosing to buy Apple iPhones (these account for about 40% of all handsets), or smartphones made by local manufacturers. However, according to The Korea Herald and a Samsung official, the Galaxy brand is "well established in Japan", that's why Samsung decided not to place its company logo on the Galaxy S6 and S6 edge that will be sold in the country starting April 23.
Already available in select markets around the world - including in the US - the S6 and S6 edge will be just Galaxy-branded in Japan, in addition to being carrier-branded (Docomo and KDDI au, respectively).
Samsung hopes that this move will enable it to sell more S6 and S6 edge units in Japan. Even if that doesn't happen, the two new flagships are off to an excellent start globally, and they may become the best selling Galaxy S handsets to date. As reported not long ago, Samsung currently expects to sell 70 million S6 and S6 edge units (combined) around the world.
The Galaxy S6 edge and Galaxy S6 for NTT Docomo
sources: NTT Docomo, The Korea Herald