Oh, yah, it was developed by their medical equipment division. Also patented as a massager and was registered with the FDA as such. Then people realized what else it could do.

The really funny part is that hitachi’s main business is heavy industry stuff; power plants, cranes, electrical infrastructure, jet fighters, trains, semiconductors, all sorts of stuff. But everyone knows them for that one time they made a massager that everyone uses as a sex toy.