Anime originally premiered in July 2011
Sony describes the story:
Legendary half-vampire, half-human vampire hunter Blade is tracking Deacon Frost, a very powerful and influential vampire who killed his mother and who heads Existence, a secretive vampire organization that operates in Southeast Asia.
Marvel Anime: Blade premiered in July 2011, and it ran for 12 episodes.
Source: Sony‘s Throwback Toons YouTube channel