Yes, ownED (past tense, early nineties).
As to the current relationship between Korg and Yamaha I do not know the details, and I don't know how many shares Yamaha still owns (if any).
Judging from the comments made by Korg customer support concerning the software protection and the management decision to change it back from USB-dongle to challenge-response I can only deduce that it is clear that Yamaha has zero influence in Korg decisions
But this was not the point of my post.
My point was the apparently Korg felt it was very necessary to change back from USB-dongle to challenge-response based on experience PLUS the prospect of upcoming changes which will be implemented by Steinberg next year.
I thought that perhaps, if this was Korg's reaction -which is quite drastic-, VSL might also have second thoughts about the cooperation with Steinberg in matters of software protection?