, previously known as , often shortened to , is a
Japanese animation company. It was founded in October 1962 by
anime pioneer
Tatsuo Yoshida along with his brothers
Kenji and Toyoharu (or by the
pen name "Ippei Kuri"). The studio's name has a double meaning in Japanese of "Tatsu's child" (Tatsu being a nickname for Tatsuo) and "
sea dragon", which was the inspiration for its
seahorse corporate logo.