I've been eyeing this old sample library for a while, thought I'd mention it here: SampleLab - Luscious Grooves: The Dark Side
We know that Yamaoka used a lot of SampleLab stuff (particularly from "Broken Beats" and "Spatial Awareness"), so there's a chance that he used this one, too. There only real information that I can find about that library is from an old Sound on Sound review (scroll down)
I have the original Luscious Grooves library, but he didn't use anything from there that I recognize. May have used The Dark Side, though. It sounds like something that he would have picked up, at least.