I know what that one is
That's a copy of something Panasonic invented a few years ago. Panasonic is apparently very active in washing machines, and has a complete product line from the really simple one you showed in this topic, all the way up to a new type of front loader that uses a new washing principle to save even more water than conventional FLs. Their Japanese website is an incredible resource in this area.
I'm going to start a Panasonic Washers topic, and post all the links there. The links on the unit they invented that's similar to the one you have in this topic, include a) the design process behind it, b) how it works, c) how it's used.