Is there a "traditional japanese way" of attacking with a knife?
Well, I'm assuming there is a 'do' in that regard, as opposed to what might happen in a modern day nasty part of Tokyo. From what I have seen it is quiet different from a Silat attack and from a 'traditional' Phillipino method. Of course we all have the same physical body and most knives are similar so there isnt going to be THAT much difference.
I can see clear similarities with what I have learned and observed about 'traditional Japanese' knife attacks and use of various swords.