In a translation provided by DualShockers (via GamesIndustry International), Higuchi stated that "For the launch of Xbox One Japan is a Tier 2 country and not a Tier 1 country, so it'll come with the second wave, that will be delayed a little bit [compared to North America]."
When asked to confirm that the console will not be sold in Japan this year, he responded by saying, "That's right. It'll launch after the Tier 1 markets," but that "It won't be delayed too much from the North American release."