The Disney character known as the "Mickey Mouse of Japan" is Doraemon. Created by Fujiko F. Fujio, Doraemon is a robotic cat who travels back in time from the 22nd century to help a young boy named Nobita Nobi. The character first appeared in manga in 1969 and has become an iconic figure in Japanese pop culture, starring in various anime shows, films, and merchandise. Doraemon's adventures often highlight themes of friendship, creativity, and problem-solving, making him beloved by both children and adults.