Mitsuru Hattori (はっとりみつる, Hattori Mitsuru; born October 8, 1977) is a Japanese manga artist. He is best known for his works Kenkō Zenrakei Suieibu Umishō, Sankarea: Undying Love, and Wash It All Away, all of which were adapted into anime television series.
Source: “Mitsuru Hattori”, English Wikipedia (CC BY-SA 4.0), excerpt