It's not even a final rejection, they can still just reapply or apeal the decision.
Also: they'd only "loose" the patent in Japan, which isn't even the one being sued over in court, they still own it America so they have total dominion over it in the US (since Patents for one country doesn't affect the same patent in other countries).
Also: they'd only "loose" the patent in Japan, which isn't even the one being sued over in court, they still own it America so they have total dominion over it in the US (since Patents for one country doesn't affect the same patent in other countries).