Microsoft Japan and Taiwan actually happen to pander to the anime-loving crowd everywhere.
Their most recent promotion involves a certain anime, but why spoil it when I can give you the link here: fly.gargantia.jp
Speaking of which, they gave official mascots for Windows 7, 8/RT and their cloud offerings (Nanami, Yu and Ai, Claudia, respectively.) as well as for Intenet Explorer (Aizawa Inori.
Ah, they also pull together strokes of marketing genius. See how popular Windows tablets are in Japan thanks to a certain ship game named Kantai Collection.