Olympus - Accounting fraud - overseas whistleblower was the one prosecuted!
Lots of other cases - Japanese CEO's doing MUCH MUCH worse face zero prison time and/or prosecution.
A lot of folks posturing here. The compensation charges - which would have been the first to go to trial if they'd ever gotten to trial (the prosecutors have been dragging things out) were laughably weak. If this is what puts CEO's in jail for years it's a total scam - 100's of japanese CEO's do this and much more. These companies are tied together every which way.