Orsimer (Orc) armor has always seemed inspired by Japanese design, the one in Morrowind was practically Samurai armor, and the one in Oblivion wasn't far off. I've always imagined the Orsimer culture and visual style is inspired by feudal japan, correct me if I'm wrong, just stating observations I've made in the past here.
No, you're not far off.
Also, if anyone mentions Blades Armor, check your armor history! That is NOT samurai, no matter how much you wish it to be. If anything, it's closer to the Lorica Segmentata used by the romans. For a comparison, look at them here
http://www.art-connection.de/acwerk/pk/rom/lorica2a-kl.jpg
http://images2.wikia.nocookie.net/__cb20060407211318/oblivion/images/thumb/4/48/Blades_Armor.jpg/340px-Blades_Armor.jpg
http://www.scholten-japanese-art.com/images/armor04.jpg
As you can see, the blades armor does not look like samurai armor, but closer to the segmentata. If anything, the orcish armor below is the closest samurai armor available.
http://images.uesp.net//2/23/MW_Armor_OrcishM.jpg