I thought I'd never see the day because in over 7 yrs of searching I'd never seen an assisted sharpening device used in Japan. I've seen a few being sold but never any talk of use, pictures of use, and defintely no videos in use. Well tonight I've found proof that one guy in Japan actually uses a jig to sharpen knives, chisels, and plane blades. To me it seems about as useful as most jigs yet better than some.
Oh and for you rip off artists he's got a patent on the device so back off!