I know nothing more than they are a mutant of Shinshuwase, which itself is a cross between Saazer x White Vine and an aroma hop. I'm assuming that will make it more noble-like. I also was told that they were late maturing, but I have no idea how late is late. I was complaining to the wife that I couldn't find hop rhizomes here in Japan, and she stumbled across confirmed female plants in a nursery while buying herbs. I asked around the Japanese homebrewers I know here, but they're all trying to grow American hop varieties that they've somehow managed to carry over from the US.
Oh, and I think my "bines" should have been "burrs."