and Sony - because they just ARE an innovative company (the walkman/discman, betamax, minidisc, S/PDIF, bluray, professional broadcast and audio products.

Philips I've already mentioned, but companies like Toshiba give us lots of innovation with things like disc drives (I cant remember Starbucks ever developing a new type of fast, energy efficient storage media, although that did give us the 'mocha-choca-frappa-latte')