I was mostly just kidding with the Honda comparison, but I don't think you're right about that being an example of something that is uniquely Japanese... my understand of that trend in the auto industry is that it was meant to ape the German luxury car naming convention, to position Lexus/Acura/Ininiti as substitutes to BMW/MB/Audi
Sony is already there, and many/most of their consumer products have normal, non-stupid, and often fantastic names. Walkman, Playstation, Vaio, Bravia, Trinitron, Xperia, Betamax, and most importantly the mighty Dream Machine!! lol.... I honestly think that whoever runs their headphone division is actually being punished for some past dishonor.