More Japanese fusion bands?
 

By fusion I mean kind of jazzy/funky but still rock. Something similar to Petrolz and Fujifabric?

So something like jazzy sound made by "rock instruments" i.e guitar, bass, keys, drums?

maybe them? Probably more jazzy than rock.

DCPRG - Mirror Balls

Their other tunes are a little harder to digest though.

Yes that's good! Any more recommendations?

It's just by chance that I saw this thread today while talking about Muraishi.

Fazjaz - Summertime

Midori