A native of Fukui Prefecture, central Japan, Hatta had led the company since its founding in 1985.
The studio is known for such series as "K-On!," "Lucky Star", and "Melancholy of Haruhi Suzumiya."
In July 2019, an arson attack gutted Kyoto Animation's No. 1 studio in the western city of Kyoto, killing 36 people and injuring 32 others.
Hatta's eldest son, Shinichiro Hatta, succeeded him as president and CEO. The studio said in a statement that while carrying forward Hideaki Hatta's vision, "we remain committed to creating work that can be enjoyed by people all over the world."
[Copyright The Jiji Press, Ltd.]