Why does Nintendo let developers co-own their IP?

[mjk45]

TheMisterManGuy said:

Cerebralbore101 said:

Platinum Games owns the Astral Chain IP. Nintendo just publishes it. So it is not a co-owned IP. The copyright goes to both of them because Nintendo is the publisher. It is not the same as Nintendo owning the IP. 

If Nintendo's name is in the copyright notice alongside Platinum's, then Nintendo owns half the IP. Meaning they have a say on what they can do with it. Astral Chain is owned by both Platinum and Nintendo.

It doesn't mean that Platinum can't put Astral Chain 2 or something similar on another console,quite often they are game specific and used to safeguard the publishers investment in an IP they don't own.