Claim: Pierrot is renowned for Tokyo Ghoul.

is a Japanese animation studio , founded in 1979 by former employees of Tatsunoko Production and Mushi Production . Its headquarters is located in Mitaka , Tokyo .  Studio Pierrot is renowned for several worldwide popular anime series , such as Naruto , Bleach , Yu Yu Hakusho , Tokyo Ghoul , Beelzebub , Great Teacher Onizuka and several others .   The company has a simple logo of the face of a clown . `` Piero '' is a Japanese loanword for clown , adopted from the classical character of Pierrot .   Yu Yu Hakusho and Saiyuki , two of the company 's anime series , won the Animage Anime Grand Prix Award in 1994 and 1995 , and 2000 , respectively .