What does Nozomu mean?
A masculine Japanese name from the verb 'nozomu' (望む, 'to hope/wish/desire'); written 望 it carries 'wish, hope, desire'. As with Nozomi, the exact sense depends on the kanji used.
What does Tatsuya mean?
Japanese given name that is dragon-meaning only in the kanji spellings that use the dragon elements, e.g. 竜也 (tatsu 'dragon' + ya) or 辰也 (辰 'dragon' of the zodiac + ya). Hedge: the reading is kanji-dependent and other spellings carry unrelated senses such as 達也 'accomplished/far-reaching', so the dragon meaning holds only for the 竜/辰 writings.