Besides Pokemon, which is much more than just anime, I don't think there's much that the general public in the US, beyond a very enthusiastic niche and demographic, is very familiar with. Like the Conan example....most everyone, the first thing that comes to mind is Conan the Barbarian(like Mike said), even though Conan is wildly popular and known in Japan, stop people in the street in the US and ask them about the Conan anime...bet the answer is , What's that?