Man how could I have missed this. I was listening to some of his old stuff and I was wondering how come I haven't heard of his stuff lately and happened to look him up and found out he died back in 2010. Wow.
Yeah it's a bummer. At least on Europe Spotify his posthumous album Spiritual State is uploaded as well as parts of the Impression: Samurai Champloo OST. His tracks are everything from "A Space in Air" to "Silver Morning"
And it's a damn shame how incredibly difficult it is to obtain his work legally. The man is a Japanese treasure and the government themselves should demand a reprint of all his albums by the millions.