I think Mr. Hayashi, who runs Atlansia, is a genius. I first met him in 1991, while writing a feature on innovative builders. A real humble, artsy guy who comes up with all kinds of original designs. Holds a LOT of patents on hardware designs. He has an extensive in-house machine shop where he makes all his own hardware and pickups, etc.
I think he was the first guy to make the single string bridges that you see on fanned fret style basses.
I love his round individual string pickups. The guy definitely thinks outside the box.
I've played some of his basses. Really like his Pegasus modul, which looks a lot like the one you posted but was introduced in 1991. The girl who played bass in The Family Stand back in the 90s used an Atlansia. My guitarist, Ronni Crooks and she had a side project, where I saw it.
I've only ever seen a couple of his basses for sale used. A few have popped up in the U.S. at LowEnd.com for sale used.
He also makes a really cool 1- and 2-string bass.
He always struck me as sort of Japan's Phil Kubicki, making ergonomic unusual designs and coming up with different ideas.