http://www.ztec-izushi.co.jp/english/
I think this is the product on Alibaba:
http://jp1009830113.trustpass.alibaba.com/product/128852485-...
Where I do see it making an impact, is "every gram counts" and if you took every washer and lockwasher off an instrument panel and replaced the nuts with these, you might save a small but measurable mass, which translates directly into a small but measurable increase in payload or range or lower fuel consumption or performance. Even on a small plane this might be a pound or two, but imagine a giant jetliner and it adds up to a respectable mass, probably financially a good idea... if its ever aerospace rated.
Note that there's kind of big gap between being listed for sale on a foreign web page with no documentation at all and no specs or datasheets or certs, and being COTS at a place like "aircraft spruce and specialties". For laughs I went there and the price to beat for certified aerospace grade locknuts is like 48 cents a piece, so I donno if this new gadget can compete in the aerospace market at the typical 100x price markup... I mean sure saving weight and fuel is cool, but not if each aircraft certified nut costs $500.
It's not that unusual an idea. Pipe threads and fittings have both sides of the thread in contact, to prevent leaks. Look up "National Pipe Thread". There are lots of self-locking thread designs, such as Wide-Lock (http://www.threadcheck.com/self-locking-thread/), Spiral-Lock (http://www.youtube.com/watch?v=0hCgeimks94).
I wonder how all the patents and trademarks collide vs the "semi-well known" Hytorc nut, which is basically the same idea but with an integral washer at the base. Hytorc's are strange little differentially threaded nuts, so instead of the tension coming from a spring half moon shape, the tension comes from the secondary fine threading. They're kind of expensive, outta my price league, so I'm guessing this new nut is going to be out of my league.