Did a search & couldn't find this, but my apologies in advance if this has been posted before. Here's an article translated to English on EVSE equipment, focused on the Japanese market. Still, there's some info on what Nissan is doing with the LEAF on the automobile side compared to other Japanese manus that some might find interesting.
Charging Systems Evolving for Different Niches
http://techon.nikkeibp.co.jp/article/HO ... 14/189525/
Full Disclosure: I work for the publishing firm which published the article.