Hitler viewed both the Chinese and Japanese people favourably. He saw both peoples as honourary Aryans. Why? Because he saw them as peoples who had pride in their races, who were trying to preserve their races' bloodlines as pure. To Hitler that was the highest goal of a race. He also saw them as having long and glorious histories where they possessed civilisations back when the German people were themselves viewed by others as barbarians.
Hitler was a bit more complex than the stereotypical view of him as, "Aryan good, everyone else to the gas chambers."
I guess this question is referring to east Asians mostly, but as a follow-up, what did the Nazis think of the actual "Aryans"? Ie the Asian people from Iran and Northern India
Are you asking for Hitler's view on Asians or his polemic? I'm sure the two are different considering their relationship with Japan.